---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '19442'
abstract:
- lang: eng
text: "1. Climate change is expected to induce shifts in the composition, structure
and functioning of Arctic tundra ecosystems. Increases in the frequency and severity
of tundra fires have the potential to catalyse vegetation transitions with far-reaching
local, regional and global consequences.\r\n2. We propose that post-fire tundra
recovery, coupled with climate change, may not necessarily lead to pre-fire conditions.
Our hypothesis, based on surveys and literature, suggests two climate–fire driven
trajectories. One trajectory results in increased woody vegetation under low fire
frequency; the other results in grass dominance under high frequency.\r\n3. Future
research should address uncertainties regarding possible tundra ecosystem shifts
linked to fires, using methods that encompass greater temporal and spatial scales
than previously addressed. More case studies, especially in underrepresented regions
and ecosystem types, are essential to broaden the empirical basis for forecasts
and potential fire management strategies.\r\n4. Synthesis. Our review synthesises
current knowledge on post-fire vegetation trajectories in Arctic tundra ecosystems,
highlighting potential transitions and alternative ecosystem states and their
implications. We discuss challenges in defining and predicting these trajectories
as well as future directions."
acknowledgement: We would like to express our sincere gratitude to all the data providers
who carried out fieldwork in different regions of the Arctic and published their
data, which we used for our meta-analysis. We recognise the hard work and dedication
of these individuals, without whom this paper would not have been possible. We are
grateful to the editor and the anonymous reviewer for their time and valuable feedback
on this manuscript. We particularly appreciate the detailed and constructive comments
provided by reviewer Mara Baudena, which significantly strengthened our work. We
also acknowledge the Indigenous peoples and rural communities of the Arctic, whose
traditional knowledge, rights, and interests are integral to the stewardship and
study of these ecosystems. This work was funded in part by the U.S. National Aeronautics
and Space Administration (NASA) grant 80NSSC22K1256 (GVF). Open Access funding enabled
and organized by Projekt DEAL.
article_processing_charge: Yes (via OA deal)
article_type: review
author:
- first_name: Ramona Julia
full_name: Heim, Ramona Julia
last_name: Heim
- first_name: Adrian V.
full_name: Rocha, Adrian V.
last_name: Rocha
- first_name: Vitalii
full_name: Zemlianskii, Vitalii
last_name: Zemlianskii
- first_name: Kirsten
full_name: Barrett, Kirsten
last_name: Barrett
- first_name: Helga
full_name: Bültmann, Helga
last_name: Bültmann
- first_name: Amy
full_name: Breen, Amy
last_name: Breen
- first_name: Gerald Verner
full_name: Frost, Gerald Verner
last_name: Frost
- first_name: Teresa Nettleton
full_name: Hollingsworth, Teresa Nettleton
last_name: Hollingsworth
- first_name: Randi
full_name: Jandt, Randi
last_name: Jandt
- first_name: Maria
full_name: Kozlova, Maria
last_name: Kozlova
- first_name: Anastasiya
full_name: Kurka, Anastasiya
last_name: Kurka
- first_name: Mark Torre
full_name: Jorgenson, Mark Torre
last_name: Jorgenson
- first_name: Simon M.
full_name: Landhäusser, Simon M.
last_name: Landhäusser
- first_name: Michael Mark
full_name: Loranty, Michael Mark
last_name: Loranty
- first_name: Eric A.
full_name: Miller, Eric A.
last_name: Miller
- first_name: Kenji
full_name: Narita, Kenji
last_name: Narita
- first_name: Evgeniya
full_name: Pravdolyubova, Evgeniya
id: 0b30719b-13f0-11ed-ab2a-94498bc6a278
last_name: Pravdolyubova
- first_name: Norbert
full_name: Hölzel, Norbert
last_name: Hölzel
- first_name: Gabriela
full_name: Schaepman-Strub, Gabriela
last_name: Schaepman-Strub
citation:
ama: Heim RJ, Rocha AV, Zemlianskii V, et al. Arctic tundra ecosystems under fire—Alternative
ecosystem states in a changing climate? Journal of Ecology. 2025;113(5):1042-1056.
doi:10.1111/1365-2745.70022
apa: Heim, R. J., Rocha, A. V., Zemlianskii, V., Barrett, K., Bültmann, H., Breen,
A., … Schaepman-Strub, G. (2025). Arctic tundra ecosystems under fire—Alternative
ecosystem states in a changing climate? Journal of Ecology. Wiley. https://doi.org/10.1111/1365-2745.70022
chicago: Heim, Ramona Julia, Adrian V. Rocha, Vitalii Zemlianskii, Kirsten Barrett,
Helga Bültmann, Amy Breen, Gerald Verner Frost, et al. “Arctic Tundra Ecosystems
under Fire—Alternative Ecosystem States in a Changing Climate?” Journal of
Ecology. Wiley, 2025. https://doi.org/10.1111/1365-2745.70022.
ieee: R. J. Heim et al., “Arctic tundra ecosystems under fire—Alternative
ecosystem states in a changing climate?,” Journal of Ecology, vol. 113,
no. 5. Wiley, pp. 1042–1056, 2025.
ista: Heim RJ, Rocha AV, Zemlianskii V, Barrett K, Bültmann H, Breen A, Frost GV,
Hollingsworth TN, Jandt R, Kozlova M, Kurka A, Jorgenson MT, Landhäusser SM, Loranty
MM, Miller EA, Narita K, Pravdolyubova E, Hölzel N, Schaepman-Strub G. 2025. Arctic
tundra ecosystems under fire—Alternative ecosystem states in a changing climate?
Journal of Ecology. 113(5), 1042–1056.
mla: Heim, Ramona Julia, et al. “Arctic Tundra Ecosystems under Fire—Alternative
Ecosystem States in a Changing Climate?” Journal of Ecology, vol. 113,
no. 5, Wiley, 2025, pp. 1042–56, doi:10.1111/1365-2745.70022.
short: R.J. Heim, A.V. Rocha, V. Zemlianskii, K. Barrett, H. Bültmann, A. Breen,
G.V. Frost, T.N. Hollingsworth, R. Jandt, M. Kozlova, A. Kurka, M.T. Jorgenson,
S.M. Landhäusser, M.M. Loranty, E.A. Miller, K. Narita, E. Pravdolyubova, N. Hölzel,
G. Schaepman-Strub, Journal of Ecology 113 (2025) 1042–1056.
date_created: 2025-03-23T23:01:27Z
date_published: 2025-05-01T00:00:00Z
date_updated: 2025-12-30T08:09:47Z
day: '01'
ddc:
- '550'
- '570'
department:
- _id: NiBa
doi: 10.1111/1365-2745.70022
external_id:
isi:
- '001443422900001'
file:
- access_level: open_access
checksum: e2785ae265e211b4dc7fc9c5b7744948
content_type: application/pdf
creator: dernst
date_created: 2025-12-30T08:08:18Z
date_updated: 2025-12-30T08:08:18Z
file_id: '20890'
file_name: 2025_JournEcology_Heim.pdf
file_size: 2662766
relation: main_file
success: 1
file_date_updated: 2025-12-30T08:08:18Z
has_accepted_license: '1'
intvolume: ' 113'
isi: 1
issue: '5'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '05'
oa: 1
oa_version: Published Version
page: 1042-1056
publication: Journal of Ecology
publication_identifier:
eissn:
- 1365-2745
issn:
- 0022-0477
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: Arctic tundra ecosystems under fire—Alternative ecosystem states in a changing
climate?
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 113
year: '2025'
...
---
OA_type: closed access
_id: '19641'
abstract:
- lang: eng
text: Mycorrhizal and saprotrophic macromycetes contribute strongly to the carbon
and nitrogen cycles of forest ecosystems, often studied by tracing stable isotope
composition of carbon and nitrogen. The phenomenon of the saprotrophic-mycorrhizal
divide highlights the difference in the stable isotope composition of fruiting
bodies of mycorrhizal and saprotrophic fungi. Much less is known about the isotopic
composition of the mycelium, which plays an important role in the formation of
the soil organic matter and fuels the fungal trophic channel in soil food webs.
In this study, we assessed whether the saprotrophic-mycorrhizal divide in the
natural δ13С and δ15N values can be traced throughout entire fungal organisms.
This hypothesis was tested using 16 species of ectomycorrhizal and six species
of saprotrophic basidiomycetous fungi. We showed that not only fruiting bodies,
but also the mycelium of ectomycorrhizal and saprotrophic fungi differs in the
δ13C and δ15N values. In both ectomycorrhizal and saprotrophic fungi, the δ13C
and δ15N values increased from mycelium to hymenophores and correlated positively
with the total N content in the corresponding tissues. The differences between
ectomycorrhizal and saprotrophic mycelium can be used to reconstruct the fungal-driven
belowground carbon and nitrogen allocation, and the contribution of saprotrophic
and mycorrhizal fungi to soil food webs.
acknowledgement: We thank Sergey Tsurikov for the help with stable isotope analysis.
Dr. Jacob D. Wickham (IEE RAS) kindly improved the English of the manuscript. This
work was supported by the Russian Science Foundation (project №. 22–14–00363).
article_number: '32'
article_processing_charge: No
article_type: original
author:
- first_name: A. G.
full_name: Zuev, A. G.
last_name: Zuev
- first_name: A. V.
full_name: Alexandrova, A. V.
last_name: Alexandrova
- first_name: V. A.
full_name: Litvinskiy, V. A.
last_name: Litvinskiy
- first_name: Evgeniya
full_name: Pravdolyubova, Evgeniya
id: 0b30719b-13f0-11ed-ab2a-94498bc6a278
last_name: Pravdolyubova
- first_name: A. V.
full_name: Tiunov, A. V.
last_name: Tiunov
citation:
ama: 'Zuev AG, Alexandrova AV, Litvinskiy VA, Pravdolyubova E, Tiunov AV. Saprotrophic-mycorrhizal
divide in stable isotope composition throughout the whole fungus: From mycelium
to hymenophore. Mycorrhiza. 2025;35(2). doi:10.1007/s00572-025-01203-w'
apa: 'Zuev, A. G., Alexandrova, A. V., Litvinskiy, V. A., Pravdolyubova, E., &
Tiunov, A. V. (2025). Saprotrophic-mycorrhizal divide in stable isotope composition
throughout the whole fungus: From mycelium to hymenophore. Mycorrhiza.
Springer Nature. https://doi.org/10.1007/s00572-025-01203-w'
chicago: 'Zuev, A. G., A. V. Alexandrova, V. A. Litvinskiy, Evgeniya Pravdolyubova,
and A. V. Tiunov. “Saprotrophic-Mycorrhizal Divide in Stable Isotope Composition
throughout the Whole Fungus: From Mycelium to Hymenophore.” Mycorrhiza.
Springer Nature, 2025. https://doi.org/10.1007/s00572-025-01203-w.'
ieee: 'A. G. Zuev, A. V. Alexandrova, V. A. Litvinskiy, E. Pravdolyubova, and A.
V. Tiunov, “Saprotrophic-mycorrhizal divide in stable isotope composition throughout
the whole fungus: From mycelium to hymenophore,” Mycorrhiza, vol. 35, no.
2. Springer Nature, 2025.'
ista: 'Zuev AG, Alexandrova AV, Litvinskiy VA, Pravdolyubova E, Tiunov AV. 2025.
Saprotrophic-mycorrhizal divide in stable isotope composition throughout the whole
fungus: From mycelium to hymenophore. Mycorrhiza. 35(2), 32.'
mla: 'Zuev, A. G., et al. “Saprotrophic-Mycorrhizal Divide in Stable Isotope Composition
throughout the Whole Fungus: From Mycelium to Hymenophore.” Mycorrhiza,
vol. 35, no. 2, 32, Springer Nature, 2025, doi:10.1007/s00572-025-01203-w.'
short: A.G. Zuev, A.V. Alexandrova, V.A. Litvinskiy, E. Pravdolyubova, A.V. Tiunov,
Mycorrhiza 35 (2025).
date_created: 2025-05-04T22:02:32Z
date_published: 2025-04-01T00:00:00Z
date_updated: 2025-09-30T12:24:12Z
day: '01'
department:
- _id: NiBa
doi: 10.1007/s00572-025-01203-w
external_id:
isi:
- '001467249900001'
pmid:
- '40232310'
intvolume: ' 35'
isi: 1
issue: '2'
language:
- iso: eng
month: '04'
oa_version: None
pmid: 1
publication: Mycorrhiza
publication_identifier:
eissn:
- 1432-1890
issn:
- 0940-6360
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Saprotrophic-mycorrhizal divide in stable isotope composition throughout the
whole fungus: From mycelium to hymenophore'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 35
year: '2025'
...
---
OA_type: closed access
_id: '19671'
abstract:
- lang: eng
text: Silvopastoral use in native forests could impact population dynamics of key
tree species, with contrasting effects at different life cycle stages. Prior studies
in South American temperate forests have mainly focused on initial stages, lacking
a comprehensive understanding of the entire life cycle within productive systems.
We assessed the population dynamics of two key species of mixed forests in northern
Patagonia (Austrocedrus chilensis and Nothofagus dombeyi) under two silvopastoral
use intensities (high vs. low), using demographic techniques and population projection
models. Over 3 years, we quantified vital rates (survival, fertility, growth,
reversion and stasis) and used matrix models to calculate deterministic population
growth rates (λ). High-intensity silvopastoral use had predominantly negative
effects on the elements of the projection matrices of A. chilensis, whereas N.
dombeyi exhibited mostly positive or no changes. As a result, projections indicated
slight population decreases for A. chilensis (mostly λ < 1) at high silvopastoral
use levels compared to low levels, while N. dombeyi showed similar projections
(λ ≅ 1) between use levels. Decreased λ for A. chilensis resulted mainly from
lower adult tree survival, while early life stages had limited influence on λ
for these long-lived species. In summary, silvopastoral use affects population
dynamics of key tree species of these mixed forests of northern Patagonia, with
implications for sustainable management. Our findings highlight the importance
of considering the entire life cycle and suggest targeted practices to enhance
A. chilensis populations.
acknowledgement: We would like to express our sincere gratitude to the owners of the
estates, Lisandro and Oscar Lanfré, Roberto Criado and Yayo Tillería, for allowing
us to conduct our research on their properties and for generously sharing their
time and knowledge throughout these years. We are also deeply thankful to our field
assistants, Matías Scotti, Clara Pissolito, Noel Szudruk, Mariano Varela, Ian Mott,
Brisa Guenuleo, Nicolás Bistolfi, Facundo Gómez and Belén Vallerga, who tirelessly
collaborated in the arduous tasks of monitoring and data collection, even in challenging
weather conditions. We are grateful to CONICET for providing the doctoral scholarship
to D. Arpigiani. This study received partial financial support from the Agencia
MINCyT (PICT 2015-1692) and the Universidad Nacional de Río Negro (PI 40-B-478),
Argentina.
article_number: e70058
article_processing_charge: No
article_type: original
author:
- first_name: Daniela
full_name: Arpigiani, Daniela
last_name: Arpigiani
- first_name: Valeria
full_name: Aschero, Valeria
last_name: Aschero
- first_name: Rosina Matilde
full_name: Soler Schaller, Rosina Matilde
id: 9e668447-8c32-11ed-b0c7-8dc2d7b80803
last_name: Soler Schaller
- first_name: Mariano M.
full_name: Amoroso, Mariano M.
last_name: Amoroso
citation:
ama: Arpigiani D, Aschero V, Soler Schaller RM, Amoroso MM. A life-cycle approach
to understand consequences of silvopastoral use on two native tree species of
Northern Patagonia. Austral Ecology. 2025;50(4). doi:10.1111/aec.70058
apa: Arpigiani, D., Aschero, V., Soler Schaller, R. M., & Amoroso, M. M. (2025).
A life-cycle approach to understand consequences of silvopastoral use on two native
tree species of Northern Patagonia. Austral Ecology. Wiley. https://doi.org/10.1111/aec.70058
chicago: Arpigiani, Daniela, Valeria Aschero, Rosina Matilde Soler Schaller, and
Mariano M. Amoroso. “A Life-Cycle Approach to Understand Consequences of Silvopastoral
Use on Two Native Tree Species of Northern Patagonia.” Austral Ecology.
Wiley, 2025. https://doi.org/10.1111/aec.70058.
ieee: D. Arpigiani, V. Aschero, R. M. Soler Schaller, and M. M. Amoroso, “A life-cycle
approach to understand consequences of silvopastoral use on two native tree species
of Northern Patagonia,” Austral Ecology, vol. 50, no. 4. Wiley, 2025.
ista: Arpigiani D, Aschero V, Soler Schaller RM, Amoroso MM. 2025. A life-cycle
approach to understand consequences of silvopastoral use on two native tree species
of Northern Patagonia. Austral Ecology. 50(4), e70058.
mla: Arpigiani, Daniela, et al. “A Life-Cycle Approach to Understand Consequences
of Silvopastoral Use on Two Native Tree Species of Northern Patagonia.” Austral
Ecology, vol. 50, no. 4, e70058, Wiley, 2025, doi:10.1111/aec.70058.
short: D. Arpigiani, V. Aschero, R.M. Soler Schaller, M.M. Amoroso, Austral Ecology
50 (2025).
date_created: 2025-05-11T22:02:41Z
date_published: 2025-04-01T00:00:00Z
date_updated: 2025-09-30T12:31:04Z
day: '01'
department:
- _id: NiBa
doi: 10.1111/aec.70058
external_id:
isi:
- '001476761500001'
intvolume: ' 50'
isi: 1
issue: '4'
language:
- iso: eng
month: '04'
oa_version: None
publication: Austral Ecology
publication_identifier:
eissn:
- 1442-9993
issn:
- 1442-9985
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: A life-cycle approach to understand consequences of silvopastoral use on two
native tree species of Northern Patagonia
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 50
year: '2025'
...
---
OA_place: publisher
OA_type: hybrid
_id: '19876'
abstract:
- lang: eng
text: "Assortative mating and sexual selection are widespread in nature and can
play an important role in speciation by facilitating the buildup and maintenance
of reproductive isolation (RI). However, their contribution to genome-wide suppression
of gene flow during RI is rarely quantified.\r\nHere, we consider a polygenic
“magic” trait that is divergently selected across two populations connected by
migration, while also serving as the basis of assortative mating, thus generating
sexual selection on one or both sexes. We obtain theoretical predictions for divergence
at\r\nindividual trait loci by assuming that the effect of all other loci on any
locus can be encapsulated via an effective migration rate, which bears a simple
relationship to measurable fitness components of migrants and various early-generation
hybrids. Our analysis clarifies how “tipping\r\npoints” (characterized by an abrupt
collapse of adaptive divergence) arise, and when assortative mating can shift
the critical level of migration beyond which divergence collapses. We quantify
the relative contributions of viability and sexual selection to genome-wide barriers
to gene\r\nflow and discuss how these depend on existing divergence levels. Our
results suggest that effective migration rates provide a useful way of understanding
genomic divergence, even in scenarios involving multiple, interacting mechanisms
of RI. "
acknowledged_ssus:
- _id: ScienComp
acknowledgement: We thank Nick Barton for useful comments on the manuscript. This
research was supported by the Scientific Service Units (SSU) of Institute of Science
and Technology Austria (ISTA) through resources provided by Scientific Computing
(SciComp).
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Parvathy
full_name: Surendranadh, Parvathy
id: 455235B8-F248-11E8-B48F-1D18A9856A87
last_name: Surendranadh
orcid: 0000-0001-6395-386X
- first_name: Himani
full_name: Sachdeva, Himani
last_name: Sachdeva
citation:
ama: Surendranadh P, Sachdeva H. Effect of assortative mating and sexual selection
on polygenic barriers to gene flow. Evolution. 2025;79(7):1185-1198. doi:10.1093/evolut/qpaf047
apa: Surendranadh, P., & Sachdeva, H. (2025). Effect of assortative mating and
sexual selection on polygenic barriers to gene flow. Evolution. Oxford
University Press. https://doi.org/10.1093/evolut/qpaf047
chicago: Surendranadh, Parvathy, and Himani Sachdeva. “Effect of Assortative Mating
and Sexual Selection on Polygenic Barriers to Gene Flow.” Evolution. Oxford
University Press, 2025. https://doi.org/10.1093/evolut/qpaf047.
ieee: P. Surendranadh and H. Sachdeva, “Effect of assortative mating and sexual
selection on polygenic barriers to gene flow,” Evolution, vol. 79, no.
7. Oxford University Press, pp. 1185–1198, 2025.
ista: Surendranadh P, Sachdeva H. 2025. Effect of assortative mating and sexual
selection on polygenic barriers to gene flow. Evolution. 79(7), 1185–1198.
mla: Surendranadh, Parvathy, and Himani Sachdeva. “Effect of Assortative Mating
and Sexual Selection on Polygenic Barriers to Gene Flow.” Evolution, vol.
79, no. 7, Oxford University Press, 2025, pp. 1185–98, doi:10.1093/evolut/qpaf047.
short: P. Surendranadh, H. Sachdeva, Evolution 79 (2025) 1185–1198.
corr_author: '1'
date_created: 2025-06-23T13:51:00Z
date_published: 2025-07-01T00:00:00Z
date_updated: 2025-12-30T08:44:13Z
day: '01'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.1093/evolut/qpaf047
external_id:
isi:
- '001490646300001'
file:
- access_level: open_access
checksum: 288ca936cef794d68a55356e70671846
content_type: application/pdf
creator: dernst
date_created: 2025-12-30T08:43:33Z
date_updated: 2025-12-30T08:43:33Z
file_id: '20898'
file_name: 2025_Evolution_Surendranadh.pdf
file_size: 2784295
relation: main_file
success: 1
file_date_updated: 2025-12-30T08:43:33Z
has_accepted_license: '1'
intvolume: ' 79'
isi: 1
issue: '7'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-nd/4.0/
month: '07'
oa: 1
oa_version: Published Version
page: 1185-1198
publication: Evolution
publication_identifier:
eissn:
- 1558-5646
issn:
- 0014-3820
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
related_material:
record:
- id: '18712'
relation: research_data
status: public
scopus_import: '1'
status: public
title: Effect of assortative mating and sexual selection on polygenic barriers to
gene flow
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 79
year: '2025'
...
---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '20102'
abstract:
- lang: eng
text: 'Speciation is rarely observable directly. A way forward is to compare pairs
of ecotypes that evolved in parallel in similar contexts but have reached different
degrees of reproductive isolation. Such comparisons are possible in the marine
snail Littorina saxatilis by contrasting barriers to gene flow between parallel
ecotypes in Spain and Sweden. In both countries, divergent ecotypes have evolved
to withstand either crab predation or wave action. Here, we explore transects
spanning contact zones between the Crab and the Wave ecotypes using low-coverage
whole-genome sequencing, morphological and behavioural traits. Despite parallel
phenotypic divergence, distinct patterns of differentiation between the ecotypes
emerged: a continuous cline in Sweden indicating a weak barrier to gene flow,
but two highly genetically and phenotypically divergent, and partly spatially
overlapping clusters in Spain suggesting a much stronger barrier to gene flow.
The absence of Spanish early-generation hybrids supported strong isolation, but
a low level of gene flow is evident from molecular data. In both countries, highly
differentiated loci were located in both shared and country-specific chromosomal
inversions but were also present in collinear regions. Despite being considered
the same species and showing similar levels of phenotypic divergence, the Spanish
ecotypes are much closer to full reproductive isolation than the Swedish ones.
Barriers to gene flow of very different strengths between ecotypes within the
same species might be explained by dissimilarities in the spatial arrangement
of habitats, the selection gradients or the ages of the systems.'
acknowledgement: 'This study was supported by European Research Council grant 693030-BARRIERS
to RKB; the Swedish Research Council (grant number 2021-04191) to KJ; the Portuguese
Foundation for Science and Technology (FCT: 2020.00275.CEECIND and PTDC/BIA-EVL/1614/2021)
to RF; grant PID2022-137935NB-I00 by MICIU/AEI/ 10.13039/501100011033/and ERDF/EU
(ED431C 2020-05) to JG, grant PID2021-124930NB-I00 funded by MICIU/AEI/ 10.13039/501100011033/and
ERDF/EU to ERA, Xunta de Galicia (ED431C 2024/22), Centro singular de Investigación
de Galicia accreditation 2024-2027 (ED431G 2023/07), ‘ERDF A way of making Europe’
and Norwegian Research Council RCN, project 315287 to AMW.'
article_number: e70025
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Francesca
full_name: Raffini, Francesca
last_name: Raffini
- first_name: Aurélien
full_name: De Jode, Aurélien
last_name: De Jode
- first_name: Kerstin
full_name: Johannesson, Kerstin
last_name: Johannesson
- first_name: Rui
full_name: Faria, Rui
last_name: Faria
- first_name: Zuzanna B.
full_name: Zagrodzka, Zuzanna B.
last_name: Zagrodzka
- first_name: Anja M
full_name: Westram, Anja M
id: 3C147470-F248-11E8-B48F-1D18A9856A87
last_name: Westram
orcid: 0000-0003-1050-4969
- first_name: Juan
full_name: Galindo, Juan
last_name: Galindo
- first_name: Emilio
full_name: Rolán-Alvarez, Emilio
last_name: Rolán-Alvarez
- first_name: Roger K.
full_name: Butlin, Roger K.
last_name: Butlin
citation:
ama: Raffini F, De Jode A, Johannesson K, et al. Phenotypic divergence and genomic
architecture between parallel ecotypes at two different points on the speciation
continuum in a marine snail. Molecular Ecology. 2025;34(21). doi:10.1111/mec.70025
apa: Raffini, F., De Jode, A., Johannesson, K., Faria, R., Zagrodzka, Z. B., Westram,
A. M., … Butlin, R. K. (2025). Phenotypic divergence and genomic architecture
between parallel ecotypes at two different points on the speciation continuum
in a marine snail. Molecular Ecology. Wiley. https://doi.org/10.1111/mec.70025
chicago: Raffini, Francesca, Aurélien De Jode, Kerstin Johannesson, Rui Faria, Zuzanna
B. Zagrodzka, Anja M Westram, Juan Galindo, Emilio Rolán-Alvarez, and Roger K.
Butlin. “Phenotypic Divergence and Genomic Architecture between Parallel Ecotypes
at Two Different Points on the Speciation Continuum in a Marine Snail.” Molecular
Ecology. Wiley, 2025. https://doi.org/10.1111/mec.70025.
ieee: F. Raffini et al., “Phenotypic divergence and genomic architecture
between parallel ecotypes at two different points on the speciation continuum
in a marine snail,” Molecular Ecology, vol. 34, no. 21. Wiley, 2025.
ista: Raffini F, De Jode A, Johannesson K, Faria R, Zagrodzka ZB, Westram AM, Galindo
J, Rolán-Alvarez E, Butlin RK. 2025. Phenotypic divergence and genomic architecture
between parallel ecotypes at two different points on the speciation continuum
in a marine snail. Molecular Ecology. 34(21), e70025.
mla: Raffini, Francesca, et al. “Phenotypic Divergence and Genomic Architecture
between Parallel Ecotypes at Two Different Points on the Speciation Continuum
in a Marine Snail.” Molecular Ecology, vol. 34, no. 21, e70025, Wiley,
2025, doi:10.1111/mec.70025.
short: F. Raffini, A. De Jode, K. Johannesson, R. Faria, Z.B. Zagrodzka, A.M. Westram,
J. Galindo, E. Rolán-Alvarez, R.K. Butlin, Molecular Ecology 34 (2025).
date_created: 2025-08-03T22:01:31Z
date_published: 2025-11-01T00:00:00Z
date_updated: 2025-12-30T09:25:45Z
day: '01'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.1111/mec.70025
external_id:
isi:
- '001538172800001'
file:
- access_level: open_access
checksum: ec01edda64cfbc6cbc8adf300f719644
content_type: application/pdf
creator: dernst
date_created: 2025-12-30T09:25:17Z
date_updated: 2025-12-30T09:25:17Z
file_id: '20906'
file_name: 2025_MolecEcology_Raffini.pdf
file_size: 2767745
relation: main_file
success: 1
file_date_updated: 2025-12-30T09:25:17Z
has_accepted_license: '1'
intvolume: ' 34'
isi: 1
issue: '21'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
publication: Molecular Ecology
publication_identifier:
eissn:
- 1365-294X
issn:
- 0962-1083
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: Phenotypic divergence and genomic architecture between parallel ecotypes at
two different points on the speciation continuum in a marine snail
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 34
year: '2025'
...
---
OA_place: publisher
OA_type: hybrid
_id: '20325'
abstract:
- lang: eng
text: Inferring genealogical relationships of wild populations is useful because
it gives direct estimates of mating patterns and variance in reproductive success.
Inference can be improved by including information about parentage shared between
siblings, or by modelling phenotypes or population data related to mating. However,
we currently lack a framework to infer parent–offspring relationships, sibships
and population parameters in a single analysis. To address this, we here extend
a previous method, Fractional Analysis of Paternity and Sibships, to include population
data for the case where one parent is known. We illustrate this with the example
of pollen dispersal in a natural hybrid zone population of the snapdragon Antirrhinum
majus. Pollen dispersal is leptokurtic, with half of mating events occurring within
30 m, but with a long tail of mating events up to 859 m. Using simulations, we
find that both sibship and population information substantially improve pedigree
reconstruction, and that we can expect to resolve median dispersal distances with
high accuracy.
acknowledgement: 'We thank a large number of field volunteers for maintaining the
population sampling, and Tom White for assistance with seed collection. We thank
Sylvia Rebel for plating tissue for DNA extraction, as well as Sean Stankowski and
two anonymous reviewers for feedback on the manuscript. '
article_number: e70051
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Thomas
full_name: Ellis, Thomas
id: 3153D6D4-F248-11E8-B48F-1D18A9856A87
last_name: Ellis
orcid: 0000-0002-8511-0254
- first_name: David
full_name: Field, David
id: 419049E2-F248-11E8-B48F-1D18A9856A87
last_name: Field
orcid: 0000-0002-4014-8478
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
citation:
ama: Ellis T, Field D, Barton NH. Joint estimation of paternity, sibships and pollen
dispersal in a snapdragon hybrid zone. Molecular Ecology. 2025;34(15).
doi:10.1111/mec.70051
apa: Ellis, T., Field, D., & Barton, N. H. (2025). Joint estimation of paternity,
sibships and pollen dispersal in a snapdragon hybrid zone. Molecular Ecology.
Wiley. https://doi.org/10.1111/mec.70051
chicago: Ellis, Thomas, David Field, and Nicholas H Barton. “Joint Estimation of
Paternity, Sibships and Pollen Dispersal in a Snapdragon Hybrid Zone.” Molecular
Ecology. Wiley, 2025. https://doi.org/10.1111/mec.70051.
ieee: T. Ellis, D. Field, and N. H. Barton, “Joint estimation of paternity, sibships
and pollen dispersal in a snapdragon hybrid zone,” Molecular Ecology, vol.
34, no. 15. Wiley, 2025.
ista: Ellis T, Field D, Barton NH. 2025. Joint estimation of paternity, sibships
and pollen dispersal in a snapdragon hybrid zone. Molecular Ecology. 34(15), e70051.
mla: Ellis, Thomas, et al. “Joint Estimation of Paternity, Sibships and Pollen Dispersal
in a Snapdragon Hybrid Zone.” Molecular Ecology, vol. 34, no. 15, e70051,
Wiley, 2025, doi:10.1111/mec.70051.
short: T. Ellis, D. Field, N.H. Barton, Molecular Ecology 34 (2025).
corr_author: '1'
date_created: 2025-09-10T05:42:23Z
date_published: 2025-09-02T00:00:00Z
date_updated: 2025-12-30T10:12:34Z
day: '02'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.1111/mec.70051
external_id:
isi:
- '001542913000001'
pmid:
- '40751392'
file:
- access_level: open_access
checksum: 5059ad4d74e6327b84b5282a39d36774
content_type: application/pdf
creator: dernst
date_created: 2025-12-30T10:12:17Z
date_updated: 2025-12-30T10:12:17Z
file_id: '20911'
file_name: 2025_MolecularEcology_Ellis.pdf
file_size: 1698605
relation: main_file
success: 1
file_date_updated: 2025-12-30T10:12:17Z
has_accepted_license: '1'
intvolume: ' 34'
isi: 1
issue: '15'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
pmid: 1
publication: Molecular Ecology
publication_identifier:
eissn:
- 1365-294X
issn:
- 0962-1083
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: Joint estimation of paternity, sibships and pollen dispersal in a snapdragon
hybrid zone
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 34
year: '2025'
...
---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '20330'
abstract:
- lang: eng
text: The evolution of sexual dimorphism (the difference in average trait values
between females and males, SD), is often thought to be constrained by shared genetic
architecture between the sexes. Indeed, it is commonly expected that SD should
negatively correlate with the intersex correlation (the genetic correlation between
effects of segregating variants in females and males, r fm), either because (1)
traits with ancestrally low r fm are less constrained in their ability to respond
to sex-specific selection and thus evolve to be more dimorphic, or because (2)
sex-specific selection, driving sexual dimorphism evolution, also acts to reduce
r fm. Despite the intuitive appeal and prominence of these ideas, their generality
and the conditions in which they hold remain unclear. Here, we develop models
incorporating sex-specific stabilizing selection, mutation and genetic drift to
examine the relationship between r fm and SD. We show that the two commonly-discussed
mechanisms with the potential to generate a negative correlation between SD and
r fm could just as easily generate a positive association, since the standard
line of reasoning hinges on a hidden assumption that sex-specific adaptation more
frequently favors increased dimorphism than reduced dimorphism. Our results provide,
to our knowledge, the first mechanistic framework for understanding the conditions
under which a correlation between r fm and SD may arise and offer a compelling
explanation for inconsistent empirical evidence. We also make the intriguing observation
that—even when selection between the two sexes is identical—drift generates nonzero
SD. We quantify this effect and discuss its significance.
acknowledgement: We thank Tim Connallon for useful discussions and correspondence,
Himani Sachdeva and Nick Barton for comments on the manuscript and the Scientific
Computing unit at ISTA for technical support. GP is the recipient of a DOC Fellowship
of the Austrian Academy of Sciences at the Institute of Science and Technology Austria
(DOC 25817) and received funding from the European Union’s Horizon 2020 research
and innovation program under the Marie Skłodowska-Curie Grant (agreement no. 665385).
LH received funding from the European Research Council, under the HaplotypeStructure
Grant (grant no. 101055327) to Nick Barton.
article_number: iyaf175
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Gemma
full_name: Puixeu Sala, Gemma
id: 33AB266C-F248-11E8-B48F-1D18A9856A87
last_name: Puixeu Sala
orcid: 0000-0001-8330-1754
- first_name: Laura
full_name: Hayward, Laura
id: fc885ee5-24bf-11eb-ad7b-bcc5104c0c1b
last_name: Hayward
citation:
ama: 'Puixeu Sala G, Hayward L. The relationship between sexual dimorphism and intersex
correlation: Do models support intuition? Genetics. 2025;231(3). doi:10.1093/genetics/iyaf175'
apa: 'Puixeu Sala, G., & Hayward, L. (2025). The relationship between sexual
dimorphism and intersex correlation: Do models support intuition? Genetics.
Oxford University Press. https://doi.org/10.1093/genetics/iyaf175'
chicago: 'Puixeu Sala, Gemma, and Laura Hayward. “The Relationship between Sexual
Dimorphism and Intersex Correlation: Do Models Support Intuition?” Genetics.
Oxford University Press, 2025. https://doi.org/10.1093/genetics/iyaf175.'
ieee: 'G. Puixeu Sala and L. Hayward, “The relationship between sexual dimorphism
and intersex correlation: Do models support intuition?,” Genetics, vol.
231, no. 3. Oxford University Press, 2025.'
ista: 'Puixeu Sala G, Hayward L. 2025. The relationship between sexual dimorphism
and intersex correlation: Do models support intuition? Genetics. 231(3), iyaf175.'
mla: 'Puixeu Sala, Gemma, and Laura Hayward. “The Relationship between Sexual Dimorphism
and Intersex Correlation: Do Models Support Intuition?” Genetics, vol.
231, no. 3, iyaf175, Oxford University Press, 2025, doi:10.1093/genetics/iyaf175.'
short: G. Puixeu Sala, L. Hayward, Genetics 231 (2025).
corr_author: '1'
date_created: 2025-09-10T05:48:04Z
date_published: 2025-11-01T00:00:00Z
date_updated: 2026-01-05T13:04:07Z
day: '01'
ddc:
- '570'
department:
- _id: BeVi
- _id: NiBa
doi: 10.1093/genetics/iyaf175
ec_funded: 1
external_id:
isi:
- '001598595000001'
file:
- access_level: open_access
checksum: bbb73bbf8617812d4d8db4af92be9538
content_type: application/pdf
creator: dernst
date_created: 2026-01-05T13:03:18Z
date_updated: 2026-01-05T13:03:18Z
file_id: '20946'
file_name: 2025_Genetics_Puixeu.pdf
file_size: 1550562
relation: main_file
success: 1
file_date_updated: 2026-01-05T13:03:18Z
has_accepted_license: '1'
intvolume: ' 231'
isi: 1
issue: '3'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
project:
- _id: 9B9DFC9E-BA93-11EA-9121-9846C619BF3A
grant_number: '25817'
name: 'Sexual conflict: resolution, constraints and biomedical implications'
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '665385'
name: International IST Doctoral Program
- _id: bd6958e0-d553-11ed-ba76-86eba6a76c00
grant_number: '101055327'
name: Understanding the evolution of continuous genomes
publication: Genetics
publication_identifier:
issn:
- 1943-2631
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'The relationship between sexual dimorphism and intersex correlation: Do models
support intuition?'
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 231
year: '2025'
...
---
OA_type: closed access
_id: '20429'
abstract:
- lang: eng
text: Plant–plant interactions are key to understanding ecosystem services and shaping
restoration strategies, as they can produce either negative or positive effects,
determining species establishment and growth. Recognizing these interactions during
early-life stages provides valuable insights for restoration in human-disturbed
areas. One promising approach is nucleation planting, which establishes small
clusters of native species in strategically selected sites, being particularly
useful in sites with large herbivores. In southern Patagonia, livestock production
has historically been the main economic activity, severely impacting extensive
areas of Nothofagus antarctica forest through grazing and intentional burning
to increase forage. In this context, nucleation planting with Berberis microphylla,
a non-palatable shrub, could foster forest recovery in degraded sites. To evaluate
this, we conducted an experiment testing the response of trees to varying shrub
number, while also assessing intraspecific effects in both species. We measured
survival, biomass, and functional traits. Results showed that the combination
of four shrubs surrounding a single tree maintained tree survival at levels comparable
to trees growing alone, while seedlings exhibited conspecific negative plant number
dependence. Additionally, B. microphylla increased its below- to above-ground
biomass ratio under higher plant number, indicating resource reallocation and
niche differentiation through spatial separation of root systems.
article_processing_charge: No
article_type: original
author:
- first_name: Gimena Noemí
full_name: Bustamante, Gimena Noemí
last_name: Bustamante
- first_name: Miriam Elisabet
full_name: Arena, Miriam Elisabet
last_name: Arena
- first_name: Luciano
full_name: Selzer, Luciano
last_name: Selzer
- first_name: Matthew
full_name: Ruggirello, Matthew
last_name: Ruggirello
- first_name: Paula
full_name: Rodríguez, Paula
last_name: Rodríguez
- first_name: Samuele
full_name: Pedrazzani, Samuele
last_name: Pedrazzani
- first_name: Jose Antonio
full_name: Navarro-Cano, Jose Antonio
last_name: Navarro-Cano
- first_name: Rosina Matilde
full_name: Soler Schaller, Rosina Matilde
id: 9e668447-8c32-11ed-b0c7-8dc2d7b80803
last_name: Soler Schaller
citation:
ama: 'Bustamante GN, Arena ME, Selzer L, et al. Biotic interactions between trees
and colonizing shrubs: Implications for active restoration in southern Patagonian
forests. Plant Ecology. 2025;226:1301-1313. doi:10.1007/s11258-025-01568-0'
apa: 'Bustamante, G. N., Arena, M. E., Selzer, L., Ruggirello, M., Rodríguez, P.,
Pedrazzani, S., … Soler Schaller, R. M. (2025). Biotic interactions between trees
and colonizing shrubs: Implications for active restoration in southern Patagonian
forests. Plant Ecology. Springer Nature. https://doi.org/10.1007/s11258-025-01568-0'
chicago: 'Bustamante, Gimena Noemí, Miriam Elisabet Arena, Luciano Selzer, Matthew
Ruggirello, Paula Rodríguez, Samuele Pedrazzani, Jose Antonio Navarro-Cano, and
Rosina Matilde Soler Schaller. “Biotic Interactions between Trees and Colonizing
Shrubs: Implications for Active Restoration in Southern Patagonian Forests.” Plant
Ecology. Springer Nature, 2025. https://doi.org/10.1007/s11258-025-01568-0.'
ieee: 'G. N. Bustamante et al., “Biotic interactions between trees and colonizing
shrubs: Implications for active restoration in southern Patagonian forests,” Plant
Ecology, vol. 226. Springer Nature, pp. 1301–1313, 2025.'
ista: 'Bustamante GN, Arena ME, Selzer L, Ruggirello M, Rodríguez P, Pedrazzani
S, Navarro-Cano JA, Soler Schaller RM. 2025. Biotic interactions between trees
and colonizing shrubs: Implications for active restoration in southern Patagonian
forests. Plant Ecology. 226, 1301–1313.'
mla: 'Bustamante, Gimena Noemí, et al. “Biotic Interactions between Trees and Colonizing
Shrubs: Implications for Active Restoration in Southern Patagonian Forests.” Plant
Ecology, vol. 226, Springer Nature, 2025, pp. 1301–13, doi:10.1007/s11258-025-01568-0.'
short: G.N. Bustamante, M.E. Arena, L. Selzer, M. Ruggirello, P. Rodríguez, S. Pedrazzani,
J.A. Navarro-Cano, R.M. Soler Schaller, Plant Ecology 226 (2025) 1301–1313.
date_created: 2025-10-05T22:01:36Z
date_published: 2025-12-01T00:00:00Z
date_updated: 2026-01-05T13:23:57Z
day: '01'
department:
- _id: NiBa
doi: 10.1007/s11258-025-01568-0
external_id:
isi:
- '001581599800001'
intvolume: ' 226'
isi: 1
language:
- iso: eng
month: '12'
oa_version: None
page: 1301-1313
publication: Plant Ecology
publication_identifier:
eissn:
- 1573-5052
issn:
- 1385-0237
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Biotic interactions between trees and colonizing shrubs: Implications for
active restoration in southern Patagonian forests'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 226
year: '2025'
...
---
OA_place: repository
OA_type: green
_id: '20531'
abstract:
- lang: eng
text: Genetic drift is potentially an important component of selection for sex,
as it is a source of statistical associations between alleles at selected loci.
By increasing local drift, population structure may thus amplify the evolutionary
advantage of sex. However, most previous models have focused either on haploid
populations or on diploid populations without spatial structure. In this article,
we use two- and three-locus analytical models and multilocus simulations to explore
selection for sex in a diploid population structured according to the island model,
in the presence of recurrent deleterious mutations. Our results show that selection
generally favors an intermediate rate of sex that decreases as the direct cost
of sex increases and increases moderately as the degree of population structure
increases. Selection for sex is generated by multiple effects involving genetic
associations within and between loci. When selection occurs at many loci, it is
generally dominated by interference effects involving deleterious alleles at different
loci, captured by our three-locus model. In our multilocus simulations, we observed
an irreversible spread of asexual mutants under strong costs of sex, and when
deleterious mutations are partially recessive. However, population structure may
prevent this spread of asexual mutants when dispersal rates are sufficiently small.
acknowledgement: L.F. is funded by the NOMIS-ISTA Fellowship Program. We thank Colin
Olito and two anonymous reviewers for helpful comments, and the bioinformatics and
computing services at Roscoff’s Biological Station (Abims platform) and at Institute
of Science and Technology Austria for computing time.
article_processing_charge: No
article_type: original
author:
- first_name: Louise
full_name: Fouqueau, Louise
id: 1676e173-8143-11ed-8927-fe165216a93f
last_name: Fouqueau
orcid: 0000-0003-0371-9339
- first_name: Denis
full_name: Roze, Denis
last_name: Roze
citation:
ama: Fouqueau L, Roze D. Deleterious mutations and selection for sex in spatially
structured, diploid populations. Evolution. 2025;79(10):2167-2180. doi:10.1093/evolut/qpaf143
apa: Fouqueau, L., & Roze, D. (2025). Deleterious mutations and selection for
sex in spatially structured, diploid populations. Evolution. Oxford University
Press. https://doi.org/10.1093/evolut/qpaf143
chicago: Fouqueau, Louise, and Denis Roze. “Deleterious Mutations and Selection
for Sex in Spatially Structured, Diploid Populations.” Evolution. Oxford
University Press, 2025. https://doi.org/10.1093/evolut/qpaf143.
ieee: L. Fouqueau and D. Roze, “Deleterious mutations and selection for sex in spatially
structured, diploid populations,” Evolution, vol. 79, no. 10. Oxford University
Press, pp. 2167–2180, 2025.
ista: Fouqueau L, Roze D. 2025. Deleterious mutations and selection for sex in spatially
structured, diploid populations. Evolution. 79(10), 2167–2180.
mla: Fouqueau, Louise, and Denis Roze. “Deleterious Mutations and Selection for
Sex in Spatially Structured, Diploid Populations.” Evolution, vol. 79,
no. 10, Oxford University Press, 2025, pp. 2167–80, doi:10.1093/evolut/qpaf143.
short: L. Fouqueau, D. Roze, Evolution 79 (2025) 2167–2180.
date_created: 2025-10-26T23:01:34Z
date_published: 2025-10-17T00:00:00Z
date_updated: 2025-12-01T15:03:54Z
day: '17'
department:
- _id: NiBa
doi: 10.1093/evolut/qpaf143
external_id:
isi:
- '001547542300001'
pmid:
- '40668071'
intvolume: ' 79'
isi: 1
issue: '10'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1101/2025.01.22.634382
month: '10'
oa: 1
oa_version: Preprint
page: 2167-2180
pmid: 1
project:
- _id: 9B861AAC-BA93-11EA-9121-9846C619BF3A
name: NOMIS Fellowship Program
publication: Evolution
publication_identifier:
eissn:
- 1558-5646
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Deleterious mutations and selection for sex in spatially structured, diploid
populations
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 79
year: '2025'
...
---
OA_place: publisher
_id: '20694'
abstract:
- lang: eng
text: "Understanding the mechanisms underlying speciation is a central aim of evolutionary
biology.\r\nA persistent challenge in the field is to identify loci that contribute
to reproductive isolation,\r\nwhile disentangling signals of selection from demography,
linkage and intrinsic genomic\r\nfeatures. Traditional population genomic approaches
that rely on site-based statistics in\r\narbitrary fixed windows face inherent
limitations, as they conflate historical and\r\ncontemporary processes of divergence
and overlook haplotype structure. Recent advances in\r\nwhole-genome sequencing
and methods to infer ancestral recombination graphs (ARGs) now\r\noffer the opportunity
to study genealogical relationships explicitly, revealing how lineages\r\ncoalesce
and recombine through time. By directly analysing haplotype clustering by species\r\nor
phenotype and their patterns of coalescence, ARG-based methods show promise for\r\ndiagnosing
sweeps, identifying barrier loci maintained under divergent selection amid gene\r\nflow,
and tracing their evolutionary history.\r\nIn this thesis, I explore the utility
of genealogical approaches for studying species\r\ndivergence. In chapter 2, I
propose a conceptual framework for defining haplotype blocks\r\nthrough the structure
of the ARG, using simulations and empirical data to highlight how\r\ngenealogical
processes generate rich and often overlooked haplotypic patterns.\r\nIn chapter
3, I examine the genomic basis of a key evolutionary innovation in marine\r\nsnails
Littorina. These snails offer a unique opportunity to study an innovation because
they\r\ninclude a very recent transition from egg-laying to live bearing, yet
snails with the different\r\nreproductive modes are not reciprocally monophyletic.
I exploited this by using topology\r\nclustering in ARG-derived local genealogical
trees to pinpoint narrow genomic regions or\r\nhaplotype blocks that carry swept
alleles, thus revealing that the transition from egg-laying\r\nto live-bearing
involves multiple, live-bearer-specific sweeps.\r\nChapter 4 establishes a population-scale,
phased genomic resource for Antirrhinum\r\nmajus, using cost-effective haplotagging,
then optimizes imputation from low-coverage data\r\nagainst high-accuracy KASP
sequencing to maximize sequence completeness with modest\r\naccuracy trade-offs
against a traditional short-read sequence pipeline. A hybrid phasing\r\nstrategy
combines molecular phasing with statistical phasing to generate phased whole\r\ngenome
sequences of 1084 Antirrhinum individuals at a fraction of long-read sequencing\r\ncosts.\r\nIn
chapter 5, I analyse hybridising populations from two replicate hybrid zones to
find\r\na parallel genetic basis of flower colour, amidst the noise in genomic
differentiation landscape\r\ndriven by variation in demographic history. While
outlier genome scans of FST failed to dissect\r\nthe causes of differentiation,
ARG-based topology clustering revealed a reuse of colour\r\nassociated haplotypes
across hybrid zones. In addition to the biological insight, this chapter\r\nalso
presents a comparison of the latest ARG inference tools, showing that signals
of\r\nAbstract\r\nviii\r\ntopological clustering qualitatively agree between methods,
despite differences in the tree\r\nsequences.\r\nNext, in chapter 6, by leveraging
~1000 individuals in one of the hybrid zones, I\r\nintegrated genome-wide association
studies of floral pigmentation with genealogical\r\ninference, to test for additional
colour loci, and confirm the effect of previously described loci.\r\nThis work
demonstrates that flower colour variation is driven by a small number of large
effect\r\nloci, while also hinting at the presence of a new candidate regulatory
factor.\r\nFinally in chapter 7, in a preliminary analysis, I begin to dissect
the genomic island of\r\nspeciation around Rosea/Eluta to understand its evolutionary
origins. My results show that it\r\nconsists of 5 highly divergent loci, each
of which is associated with flower colour. Using\r\npatterns of coalescence in
genealogical trees, I find evidence of staggered selective sweeps\r\nand a persistent
localized barrier to gene flow within an otherwise permeable genome.\r\nTogether,
these chapters add to the increasing pool of studies using genealogical\r\napproaches
to complement and extend site-based statistics to use haplotype structures in\r\nspeciation
research. By tracking haplotypes directly and connecting genealogical clustering
to\r\npopulation processes, ARG-based inference promises to provide new insights
into how local\r\nselective pressures, demographic history, and long-term barriers
interact to shape the\r\ngenomic architecture of divergence. By underscoring the
value of ARGs in revealing the finescale origins and maintenance of biodiversity,
this thesis presents cautious optimism about\r\nthe benefits of using genealogical
inference to learn more than what site-based statistics\r\ncould tell us."
acknowledged_ssus:
- _id: ScienComp
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Arka
full_name: Pal, Arka
id: 6AAB2240-CA9A-11E9-9C1A-D9D1E5697425
last_name: Pal
orcid: 0000-0002-4530-8469
citation:
ama: Pal A. Using genealogies to study the genomic basis of species divergence.
2025. doi:10.15479/AT-ISTA-20694
apa: Pal, A. (2025). Using genealogies to study the genomic basis of species
divergence. Institute of Science and Technology Austria. https://doi.org/10.15479/AT-ISTA-20694
chicago: Pal, Arka. “Using Genealogies to Study the Genomic Basis of Species Divergence.”
Institute of Science and Technology Austria, 2025. https://doi.org/10.15479/AT-ISTA-20694.
ieee: A. Pal, “Using genealogies to study the genomic basis of species divergence,”
Institute of Science and Technology Austria, 2025.
ista: Pal A. 2025. Using genealogies to study the genomic basis of species divergence.
Institute of Science and Technology Austria.
mla: Pal, Arka. Using Genealogies to Study the Genomic Basis of Species Divergence.
Institute of Science and Technology Austria, 2025, doi:10.15479/AT-ISTA-20694.
short: A. Pal, Using Genealogies to Study the Genomic Basis of Species Divergence,
Institute of Science and Technology Austria, 2025.
corr_author: '1'
date_created: 2025-11-25T13:19:11Z
date_published: 2025-11-25T00:00:00Z
date_updated: 2026-04-28T13:20:36Z
day: '25'
ddc:
- '576'
- '578'
degree_awarded: PhD
department:
- _id: GradSch
- _id: NiBa
doi: 10.15479/AT-ISTA-20694
file:
- access_level: open_access
checksum: 7a10a738d58524aebb5dcbd9b34c21c5
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language:
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month: '11'
oa: 1
oa_version: Published Version
page: '268'
project:
- _id: bd6958e0-d553-11ed-ba76-86eba6a76c00
grant_number: '101055327'
name: Understanding the evolution of continuous genomes
- _id: 05959E1C-7A3F-11EA-A408-12923DDC885E
grant_number: P32166
name: Snapdragon Speciation
publication_identifier:
issn:
- 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
record:
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relation: part_of_dissertation
status: public
- id: '14796'
relation: part_of_dissertation
status: public
- id: '20190'
relation: part_of_dissertation
status: public
status: public
supervisor:
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
title: Using genealogies to study the genomic basis of species divergence
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: dissertation
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
year: '2025'
...
---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '20190'
abstract:
- lang: eng
text: 'A major goal of speciation research is identifying loci that underpin barriers
to gene flow. Population genomics takes a ‘bottom-up’ approach, scanning the genome
for molecular signatures of processes that drive or maintain divergence. However,
interpreting the ‘genomic landscape’ of speciation is complicated, because genome
scans conflate multiple processes, most of which are not informative about gene
flow. However, studying replicated population contrasts, including multiple incidences
of secondary contact, can strengthen inferences. In this paper, we use linked-read
sequencing (haplotagging), FST scans and genealogical methods to characterise
the genomic landscape associated with replicate hybrid zone formation. We studied
two flower colour varieties of the common snapdragon, Antirrhinum majus subspecies
majus, that form secondary hybrid zones in multiple independent valleys in the
Pyrenees. Consistent with past work, we found very low differentiation at one
well-studied zone (Planoles). However, at a second zone (Avellanet), we found
stronger differentiation and greater heterogeneity, which we argue is due to differences
in the amount of introgression following secondary contact. Topology weighting
of genealogical trees identified loci where haplotype diversity was associated
with the two snapdragon varieties. Two of the strongest associations were at previously
identified flower colour loci: Flavia, that affects yellow pigmentation, and Rosea/Eluta,
two linked loci that affect magenta pigmentation. Preliminary analysis of coalescence
times provides additional evidence for selective sweeps at these loci and barriers
to gene flow. Our study highlights the impact of demographic history on the differentiation
landscape, emphasising the need to distinguish between historical divergence and
recent introgression.'
acknowledged_ssus:
- _id: ScienComp
acknowledgement: 'We thank ESEB Godfrey Hewitt Mobility Award for supporting AP’s
research stay at UC Davis. We thank Tom Ellis, Parvathy Surendranadh, and other
Barton Group and Coop Lab members for stimulating discussions. We are grateful to
all the interns and volunteers who have helped us with fieldwork. We thank Eva Salmerón
Mateu for her assistance in fieldwork logistics at the field station, El Serrat.
We are grateful to Enrico Coen and his research group for providing the Antirrhinum
molle PoolSeq data used in the allele polarisation. We are also thankful to Enrico
Coen and Cristophe Thébaud for discovering the Avellanet hybrid zone, followed up
with sampling led by D.L.F. in 2017. The study was supported by Austrian Science
Fund (FWF) Grant (Snapdragon Speciation P32166, awarded to D.L.F.); ERC (Advanced
Grant HaplotypeStructure 101055327, awarded to NHB); ERC (POC Grant 101069216, awarded
to Y.F.C.) and the National Institutes of Health (NIH R35 GM136290, awarded to G.C.).
Y.F.C. was supported by the Max Planck Society. Computing infrastructure for bioinformatics
and analyses was provided by ISTA High Performance Cluster. '
article_number: e70067
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Arka
full_name: Pal, Arka
id: 6AAB2240-CA9A-11E9-9C1A-D9D1E5697425
last_name: Pal
orcid: 0000-0002-4530-8469
- first_name: Daria
full_name: Shipilina, Daria
id: 428A94B0-F248-11E8-B48F-1D18A9856A87
last_name: Shipilina
orcid: 0000-0002-1145-9226
- first_name: Alan
full_name: Le Moan, Alan
last_name: Le Moan
- first_name: Adrian J.
full_name: Mcnairn, Adrian J.
last_name: Mcnairn
- first_name: Jennifer K.
full_name: Grenier, Jennifer K.
last_name: Grenier
- first_name: Marek
full_name: Kucka, Marek
last_name: Kucka
- first_name: Graham
full_name: Coop, Graham
last_name: Coop
- first_name: Yingguang Frank
full_name: Chan, Yingguang Frank
last_name: Chan
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
- first_name: David
full_name: Field, David
id: 419049E2-F248-11E8-B48F-1D18A9856A87
last_name: Field
orcid: 0000-0002-4014-8478
- first_name: Sean
full_name: Stankowski, Sean
id: 43161670-5719-11EA-8025-FABC3DDC885E
last_name: Stankowski
citation:
ama: Pal A, Shipilina D, Le Moan A, et al. Genealogical analysis of replicate flower
colour hybrid zones in Antirrhinum. Molecular Ecology. 2025;34(22). doi:10.1111/mec.70067
apa: Pal, A., Shipilina, D., Le Moan, A., Mcnairn, A. J., Grenier, J. K., Kucka,
M., … Stankowski, S. (2025). Genealogical analysis of replicate flower colour
hybrid zones in Antirrhinum. Molecular Ecology. Wiley. https://doi.org/10.1111/mec.70067
chicago: Pal, Arka, Daria Shipilina, Alan Le Moan, Adrian J. Mcnairn, Jennifer K.
Grenier, Marek Kucka, Graham Coop, et al. “Genealogical Analysis of Replicate
Flower Colour Hybrid Zones in Antirrhinum.” Molecular Ecology. Wiley, 2025.
https://doi.org/10.1111/mec.70067.
ieee: A. Pal et al., “Genealogical analysis of replicate flower colour hybrid
zones in Antirrhinum,” Molecular Ecology, vol. 34, no. 22. Wiley, 2025.
ista: Pal A, Shipilina D, Le Moan A, Mcnairn AJ, Grenier JK, Kucka M, Coop G, Chan
YF, Barton NH, Field D, Stankowski S. 2025. Genealogical analysis of replicate
flower colour hybrid zones in Antirrhinum. Molecular Ecology. 34(22), e70067.
mla: Pal, Arka, et al. “Genealogical Analysis of Replicate Flower Colour Hybrid
Zones in Antirrhinum.” Molecular Ecology, vol. 34, no. 22, e70067, Wiley,
2025, doi:10.1111/mec.70067.
short: A. Pal, D. Shipilina, A. Le Moan, A.J. Mcnairn, J.K. Grenier, M. Kucka, G.
Coop, Y.F. Chan, N.H. Barton, D. Field, S. Stankowski, Molecular Ecology 34 (2025).
corr_author: '1'
date_created: 2025-08-17T22:01:37Z
date_published: 2025-11-01T00:00:00Z
date_updated: 2026-08-12T22:30:40Z
day: '01'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.1111/mec.70067
external_id:
isi:
- '001546622100001'
file:
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checksum: c586fc674df4e7dd6e43aef87a52c6f6
content_type: application/pdf
creator: dernst
date_created: 2026-01-05T13:47:47Z
date_updated: 2026-01-05T13:47:47Z
file_id: '20958'
file_name: 2025_MolecEcology_Pal.pdf
file_size: 9886694
relation: main_file
success: 1
file_date_updated: 2026-01-05T13:47:47Z
has_accepted_license: '1'
intvolume: ' 34'
isi: 1
issue: '22'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
project:
- _id: 05959E1C-7A3F-11EA-A408-12923DDC885E
grant_number: P32166
name: Snapdragon Speciation
- _id: bd6958e0-d553-11ed-ba76-86eba6a76c00
grant_number: '101055327'
name: Understanding the evolution of continuous genomes
publication: Molecular Ecology
publication_identifier:
eissn:
- 1365-294X
issn:
- 0962-1083
publication_status: published
publisher: Wiley
quality_controlled: '1'
related_material:
link:
- description: News on ISTA website
relation: press_release
url: https://ista.ac.at/en/news/snapdragon-secrets/
record:
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relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: Genealogical analysis of replicate flower colour hybrid zones in Antirrhinum
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
volume: 34
year: '2025'
...
---
OA_type: green
_id: '21967'
abstract:
- lang: eng
text: "Selection against deleterious mutations, called purifying selection, plays
a central role in evolution and acts in all populations. It is known that the
genetic patterns observed in genomic regions undergoing purifying selection differ
from those resulting from neutral evolution. However, a comprehensive understanding
of the underlying mechanisms shaping those patterns is still lacking.\r\n\r\nIn
the present work, we use simulations combined with a genealogical approach to
identify the effect of purifying selection on the ancestry and thus on the genetic
diversity. Our analysis relies on the postulate that the genealogy belongs to
the universality class of Beta-coalescents. Under this assumption, we derive statistics
measuring the distortion of the genealogy. This approach allows us to consider
a wide range of regimes (i.e. arbitrary selection and mutation strengths) and
uncover a rich phase diagram. We find that, for strong selection, the limiting
genealogy is given by Kingman’s coalescent on a polynomial timescale. As selection
gets weaker, Muller’s ratchet starts operating, setting off the emergence of multiple
mergers in the genealogical structures. Our results show that while multiple-merger
coalescents are often interpreted as the signature of selective sweeps in rapidly
adapting populations, these structures can also appear in the context of Muller’s
ratchet."
acknowledgement: This work was supported by the Austrian Academy of Science, DOC fellowship
No 26293 (K.K.) and the European Union’s Horizon 2020 research and innovation programme
under the Marie Skłodowska-Curie grant agreement No 101034413 (J.T.). Simulations
were performed on the ISTA High-performance Computing Cluster.
article_processing_charge: No
author:
- first_name: Kseniia
full_name: Khudiakova, Kseniia
id: 4E6DC800-AE37-11E9-AC72-31CAE5697425
last_name: Khudiakova
orcid: 0000-0002-6246-1465
- first_name: Florin
full_name: Boenkost, Florin
last_name: Boenkost
- first_name: Julie N
full_name: Tourniaire, Julie N
id: 5dc06dd8-8e51-11ec-9170-8d9c450cc216
last_name: Tourniaire
citation:
ama: Khudiakova K, Boenkost F, Tourniaire JN. Genealogies under purifying selection.
bioRxiv. doi:10.1101/2024.10.15.618444
apa: Khudiakova, K., Boenkost, F., & Tourniaire, J. N. (n.d.). Genealogies under
purifying selection. bioRxiv. https://doi.org/10.1101/2024.10.15.618444
chicago: Khudiakova, Kseniia, Florin Boenkost, and Julie N Tourniaire. “Genealogies
under Purifying Selection.” BioRxiv, n.d. https://doi.org/10.1101/2024.10.15.618444.
ieee: K. Khudiakova, F. Boenkost, and J. N. Tourniaire, “Genealogies under purifying
selection,” bioRxiv. .
ista: Khudiakova K, Boenkost F, Tourniaire JN. Genealogies under purifying selection.
bioRxiv, 10.1101/2024.10.15.618444.
mla: Khudiakova, Kseniia, et al. “Genealogies under Purifying Selection.” BioRxiv,
doi:10.1101/2024.10.15.618444.
short: K. Khudiakova, F. Boenkost, J.N. Tourniaire, BioRxiv (n.d.).
corr_author: '1'
date_created: 2026-06-09T12:14:08Z
date_published: 2024-10-18T00:00:00Z
date_updated: 2026-06-12T12:43:34Z
day: '18'
department:
- _id: NiBa
- _id: JaMa
doi: 10.1101/2024.10.15.618444
ec_funded: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1101/2024.10.15.618444
month: '10'
oa: 1
oa_version: Preprint
project:
- _id: 34d33d68-11ca-11ed-8bc3-ec13763c0ca8
grant_number: '26293'
name: The impact of deleterious mutations on small populations
- _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c
call_identifier: H2020
grant_number: '101034413'
name: 'IST-BRIDGE: International postdoctoral program'
publication: bioRxiv
publication_status: draft
related_material:
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relation: dissertation_contains
status: public
status: public
title: Genealogies under purifying selection
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: preprint
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2024'
...
---
OA_place: publisher
OA_type: hybrid
_id: '14463'
abstract:
- lang: eng
text: Inversions are thought to play a key role in adaptation and speciation, suppressing
recombination between diverging populations. Genes influencing adaptive traits
cluster in inversions, and changes in inversion frequencies are associated with
environmental differences. However, in many organisms, it is unclear if inversions
are geographically and taxonomically widespread. The intertidal snail, Littorina
saxatilis, is one such example. Strong associations between putative polymorphic
inversions and phenotypic differences have been demonstrated between two ecotypes
of L. saxatilis in Sweden and inferred elsewhere, but no direct evidence for inversion
polymorphism currently exists across the species range. Using whole genome data
from 107 snails, most inversion polymorphisms were found to be widespread across
the species range. The frequencies of some inversion arrangements were significantly
different among ecotypes, suggesting a parallel adaptive role. Many inversions
were also polymorphic in the sister species, L. arcana, hinting at an ancient
origin.
acknowledgement: We would like to thank members of the Littorina team for their advice
and feedback during this project. In particular, we thank Alan Le Moan, who inspired
us to look at heterozygosity differences to identify inversions, and Katherine Hearn
for helping with the PCA scripts. We thank Edinburgh Genomics for library preparation
and sequencing. Sample collections, sequencing and data preparation were supported
by the European Research Council (ERC-2015-AdG-693030- BARRIERS) and the Natural
Environment Research Council (NE/P001610/1). The analysis was supported by the Swedish
Research Council (vetenskaprådet; 2018-03695_VR) and the Portuguese Foundation for
Science and Technology (Fundación para a Ciência e Tecnologia) through a research
project (PTDC/BIA-EVL/1614/2021) and CEEC contract (2020.00275.CEECIND).
article_number: e17160
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: James
full_name: Reeve, James
last_name: Reeve
- first_name: Roger K.
full_name: Butlin, Roger K.
last_name: Butlin
- first_name: Eva L.
full_name: Koch, Eva L.
last_name: Koch
- first_name: Sean
full_name: Stankowski, Sean
id: 43161670-5719-11EA-8025-FABC3DDC885E
last_name: Stankowski
- first_name: Rui
full_name: Faria, Rui
last_name: Faria
citation:
ama: Reeve J, Butlin RK, Koch EL, Stankowski S, Faria R. Chromosomal inversion polymorphisms
are widespread across the species ranges of rough periwinkles (Littorina saxatilis
and L. arcana). Molecular Ecology. 2024;33(24). doi:10.1111/mec.17160
apa: Reeve, J., Butlin, R. K., Koch, E. L., Stankowski, S., & Faria, R. (2024).
Chromosomal inversion polymorphisms are widespread across the species ranges of
rough periwinkles (Littorina saxatilis and L. arcana). Molecular Ecology.
Wiley. https://doi.org/10.1111/mec.17160
chicago: Reeve, James, Roger K. Butlin, Eva L. Koch, Sean Stankowski, and Rui Faria.
“Chromosomal Inversion Polymorphisms Are Widespread across the Species Ranges
of Rough Periwinkles (Littorina Saxatilis and L. Arcana).” Molecular Ecology.
Wiley, 2024. https://doi.org/10.1111/mec.17160.
ieee: J. Reeve, R. K. Butlin, E. L. Koch, S. Stankowski, and R. Faria, “Chromosomal
inversion polymorphisms are widespread across the species ranges of rough periwinkles
(Littorina saxatilis and L. arcana),” Molecular Ecology, vol. 33, no. 24.
Wiley, 2024.
ista: Reeve J, Butlin RK, Koch EL, Stankowski S, Faria R. 2024. Chromosomal inversion
polymorphisms are widespread across the species ranges of rough periwinkles (Littorina
saxatilis and L. arcana). Molecular Ecology. 33(24), e17160.
mla: Reeve, James, et al. “Chromosomal Inversion Polymorphisms Are Widespread across
the Species Ranges of Rough Periwinkles (Littorina Saxatilis and L. Arcana).”
Molecular Ecology, vol. 33, no. 24, e17160, Wiley, 2024, doi:10.1111/mec.17160.
short: J. Reeve, R.K. Butlin, E.L. Koch, S. Stankowski, R. Faria, Molecular Ecology
33 (2024).
date_created: 2023-10-29T23:01:17Z
date_published: 2024-12-01T00:00:00Z
date_updated: 2025-01-09T07:53:18Z
day: '01'
ddc:
- '570'
department:
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doi: 10.1111/mec.17160
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publication_identifier:
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publisher: Wiley
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title: Chromosomal inversion polymorphisms are widespread across the species ranges
of rough periwinkles (Littorina saxatilis and L. arcana)
tmp:
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type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 33
year: '2024'
...
---
OA_place: publisher
_id: '14711'
abstract:
- lang: eng
text: "In nature, different species find their niche in a range of environments,
each with its unique characteristics. While some thrive in uniform (homogeneous)
landscapes where environmental conditions stay relatively consistent across space,
others traverse the complexities of spatially heterogeneous terrains. Comprehending
how species are distributed and how they interact within these landscapes holds
the key to gaining insights into their evolutionary dynamics while also informing
conservation and management strategies.\r\n\r\nFor species inhabiting heterogeneous
landscapes, when the rate of dispersal is low compared to spatial fluctuations
in selection pressure, localized adaptations may emerge. Such adaptation in response
to varying selection strengths plays an important role in the persistence of populations
in our rapidly changing world. Hence, species in nature are continuously in a
struggle to adapt to local environmental conditions, to ensure their continued
survival. Natural populations can often adapt in time scales short enough for
evolutionary changes to influence ecological dynamics and vice versa, thereby
creating a feedback between evolution and demography. The analysis of this feedback
and the relative contributions of gene flow, demography, drift, and natural selection
to genetic variation and differentiation has remained a recurring theme in evolutionary
biology. Nevertheless, the effective role of these forces in maintaining variation
and shaping patterns of diversity is not fully understood. Even in homogeneous
environments devoid of local adaptations, such understanding remains elusive.
Understanding this feedback is crucial, for example in determining the conditions
under which extinction risk can be mitigated in peripheral populations subject
to deleterious mutation accumulation at the edges of species’ ranges\r\nas well
as in highly fragmented populations.\r\n\r\nIn this thesis we explore both uniform
and spatially heterogeneous metapopulations, investigating and providing theoretical
insights into the dynamics of local adaptation in the latter and examining the
dynamics of load and extinction as well as the impact of joint ecological and
evolutionary (eco-evolutionary) dynamics in the former. The thesis is divided
into 5 chapters.\r\n\r\nChapter 1 provides a general introduction into the subject
matter, clarifying concepts and ideas used throughout the thesis. In chapter 2,
we explore how fast a species distributed across a heterogeneous landscape adapts
to changing conditions marked by alterations in carrying capacity, selection pressure,
and migration rate.\r\n\r\nIn chapter 3, we investigate how migration selection
and drift influences adaptation and the maintenance of variation in a metapopulation
with three habitats, an extension of previous models of adaptation in two habitats.
We further develop analytical approximations for the critical threshold required
for polymorphism to persist.\r\n\r\nThe focus of chapter 4 of the thesis is on
understanding the interplay between ecology and evolution as coupled processes.
We investigate how eco-evolutionary feedback between migration, selection, drift,
and demography influences eco-evolutionary outcomes in marginal populations subject
to deleterious mutation accumulation. Using simulations as well as theoretical
approximations of the coupled dynamics of population size and allele frequency,
we analyze how gene flow from a large mainland source influences genetic load
and population size on an island (i.e., in a marginal population) under genetically
realistic assumptions. Analyses of this sort are important because small isolated
populations, are repeatedly affected by complex interactions between ecological
and evolutionary processes, which can lead to their death. Understanding these
interactions can therefore provide an insight into the conditions under which
extinction risk can be mitigated in peripheral populations thus, contributing
to conservation and restoration efforts.\r\n\r\nChapter 5 extends the analysis
in chapter 4 to consider the dynamics of load (due to deleterious mutation accumulation)
and extinction risk in a metapopulation. We explore the role of gene flow, selection,
and dominance on load and extinction risk and further pinpoint critical thresholds
required for metapopulation persistence.\r\n\r\nOverall this research contributes
to our understanding of ecological and evolutionary mechanisms that shape species’
persistence in fragmented landscapes, a crucial foundation for successful conservation
efforts and biodiversity management."
acknowledged_ssus:
- _id: SSU
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Oluwafunmilola O
full_name: Olusanya, Oluwafunmilola O
id: 41AD96DC-F248-11E8-B48F-1D18A9856A87
last_name: Olusanya
orcid: 0000-0003-1971-8314
citation:
ama: Olusanya OO. Local adaptation, genetic load and extinction in metapopulations.
2024. doi:10.15479/at:ista:14711
apa: Olusanya, O. O. (2024). Local adaptation, genetic load and extinction in
metapopulations. Institute of Science and Technology Austria. https://doi.org/10.15479/at:ista:14711
chicago: Olusanya, Oluwafunmilola O. “Local Adaptation, Genetic Load and Extinction
in Metapopulations.” Institute of Science and Technology Austria, 2024. https://doi.org/10.15479/at:ista:14711.
ieee: O. O. Olusanya, “Local adaptation, genetic load and extinction in metapopulations,”
Institute of Science and Technology Austria, 2024.
ista: Olusanya OO. 2024. Local adaptation, genetic load and extinction in metapopulations.
Institute of Science and Technology Austria.
mla: Olusanya, Oluwafunmilola O. Local Adaptation, Genetic Load and Extinction
in Metapopulations. Institute of Science and Technology Austria, 2024, doi:10.15479/at:ista:14711.
short: O.O. Olusanya, Local Adaptation, Genetic Load and Extinction in Metapopulations,
Institute of Science and Technology Austria, 2024.
corr_author: '1'
date_created: 2023-12-26T22:49:53Z
date_published: 2024-01-19T00:00:00Z
date_updated: 2026-04-07T12:54:29Z
day: '19'
ddc:
- '576'
degree_awarded: PhD
department:
- _id: NiBa
- _id: GradSch
doi: 10.15479/at:ista:14711
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month: '01'
oa: 1
oa_version: Published Version
page: '183'
project:
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '665385'
name: International IST Doctoral Program
- _id: c08d3278-5a5b-11eb-8a69-fdb09b55f4b8
grant_number: P32896
name: Causes and consequences of population fragmentation
- _id: 34c872fe-11ca-11ed-8bc3-8534b82131e6
grant_number: '26380'
name: Polygenic Adaptation in a Metapopulation
publication_identifier:
issn:
- 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
record:
- id: '10787'
relation: part_of_dissertation
status: public
- id: '10658'
relation: part_of_dissertation
status: public
- id: '14732'
relation: part_of_dissertation
status: public
status: public
supervisor:
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
- first_name: Jitka
full_name: Polechova, Jitka
last_name: Polechova
- first_name: Himani
full_name: Sachdeva, Himani
last_name: Sachdeva
title: Local adaptation, genetic load and extinction in metapopulations
tmp:
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legal_code_url: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC
BY-NC-SA 4.0)
short: CC BY-NC-SA (4.0)
type: dissertation
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
year: '2024'
...
---
_id: '14850'
abstract:
- lang: eng
text: Elaborate sexual signals are thought to have evolved and be maintained to
serve as honest indicators of signaller quality. One measure of quality is health,
which can be affected by parasite infection. Cnemaspis mysoriensis is a diurnal
gecko that is often infested with ectoparasites in the wild, and males of this
species express visual (coloured gular patches) and chemical (femoral gland secretions)
traits that receivers could assess during social interactions. In this paper,
we tested whether ectoparasites affect individual health, and whether signal quality
is an indicator of ectoparasite levels. In wild lizards, we found that ectoparasite
level was negatively correlated with body condition in both sexes. Moreover, some
characteristics of both visual and chemical traits in males were strongly associated
with ectoparasite levels. Specifically, males with higher ectoparasite levels
had yellow gular patches with lower brightness and chroma, and chemical secretions
with a lower proportion of aromatic compounds. We then determined whether ectoparasite
levels in males influence female behaviour. Using sequential choice trials, wherein
females were provided with either the visual or the chemical signals of wild-caught
males that varied in ectoparasite level, we found that only chemical secretions
evoked an elevated female response towards less parasitised males. Simultaneous
choice trials in which females were exposed to the chemical secretions from males
that varied in parasite level further confirmed a preference for males with lower
parasites loads. Overall, we find that although health (body condition) or ectoparasite
load can be honestly advertised through multiple modalities, the parasite-mediated
female response is exclusively driven by chemical signals.
acknowledgement: "We thank Anuradha Batabyal and Shakilur Kabir for scientific discussions,
and help with sampling and colour analyses. We thank Muralidhar and the central
LCMS facility of the IISc for their technical support with the GCMS.\r\nResearch
funding was provided by the Department of Science and Technology Fund for Improvement
of S&T Infrastructure (DST-FIST), the Department of Biotechnology-Indian Institute
of Science (DBT-IISc) partnership program and a Science and Engineering Research
Board (SERB) grant to M.T. (EMR/2017/002228). Open Access funding provided by Indian
Institute of Science. Deposited in PMC for immediate release."
article_number: jeb246217
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Arka
full_name: Pal, Arka
id: 6AAB2240-CA9A-11E9-9C1A-D9D1E5697425
last_name: Pal
orcid: 0000-0002-4530-8469
- first_name: Mihir
full_name: Joshi, Mihir
last_name: Joshi
- first_name: Maria
full_name: Thaker, Maria
last_name: Thaker
citation:
ama: Pal A, Joshi M, Thaker M. Too much information? Males convey parasite levels
using more signal modalities than females utilise. Journal of Experimental
Biology. 2024;227(1). doi:10.1242/jeb.246217
apa: Pal, A., Joshi, M., & Thaker, M. (2024). Too much information? Males convey
parasite levels using more signal modalities than females utilise. Journal
of Experimental Biology. The Company of Biologists. https://doi.org/10.1242/jeb.246217
chicago: Pal, Arka, Mihir Joshi, and Maria Thaker. “Too Much Information? Males
Convey Parasite Levels Using More Signal Modalities than Females Utilise.” Journal
of Experimental Biology. The Company of Biologists, 2024. https://doi.org/10.1242/jeb.246217.
ieee: A. Pal, M. Joshi, and M. Thaker, “Too much information? Males convey parasite
levels using more signal modalities than females utilise,” Journal of Experimental
Biology, vol. 227, no. 1. The Company of Biologists, 2024.
ista: Pal A, Joshi M, Thaker M. 2024. Too much information? Males convey parasite
levels using more signal modalities than females utilise. Journal of Experimental
Biology. 227(1), jeb246217.
mla: Pal, Arka, et al. “Too Much Information? Males Convey Parasite Levels Using
More Signal Modalities than Females Utilise.” Journal of Experimental Biology,
vol. 227, no. 1, jeb246217, The Company of Biologists, 2024, doi:10.1242/jeb.246217.
short: A. Pal, M. Joshi, M. Thaker, Journal of Experimental Biology 227 (2024).
corr_author: '1'
date_created: 2024-01-22T08:14:49Z
date_published: 2024-01-10T00:00:00Z
date_updated: 2025-09-04T11:50:21Z
day: '10'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.1242/jeb.246217
external_id:
isi:
- '001214515700016'
pmid:
- '38054353'
file:
- access_level: open_access
checksum: 136325372f6f45abaa62a71e2d23bfb6
content_type: application/pdf
creator: dernst
date_created: 2024-01-23T12:08:24Z
date_updated: 2024-01-23T12:08:24Z
file_id: '14877'
file_name: 2024_JourExperimBiology_Pal.pdf
file_size: 594128
relation: main_file
success: 1
file_date_updated: 2024-01-23T12:08:24Z
has_accepted_license: '1'
intvolume: ' 227'
isi: 1
issue: '1'
keyword:
- Insect Science
- Molecular Biology
- Animal Science and Zoology
- Aquatic Science
- Physiology
- Ecology
- Evolution
- Behavior and Systematics
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
pmid: 1
publication: Journal of Experimental Biology
publication_identifier:
eissn:
- 0022-0949
issn:
- 1477-9145
publication_status: published
publisher: The Company of Biologists
quality_controlled: '1'
related_material:
link:
- relation: software
url: https://github.com/arka-pal/Cnemaspis-SexualSignaling
scopus_import: '1'
status: public
title: Too much information? Males convey parasite levels using more signal modalities
than females utilise
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
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type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
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year: '2024'
...
---
OA_place: publisher
_id: '15020'
abstract:
- lang: eng
text: "This thesis consists of four distinct pieces of work within theoretical biology,
with two themes in common: the concept of optimization in biological systems,
and the use of information-theoretic tools to quantify biological stochasticity
and statistical uncertainty.\r\nChapter 2 develops a statistical framework for
studying biological systems which we believe to be optimized for a particular
utility function, such as retinal neurons conveying information about visual stimuli.
We formalize such beliefs as maximum-entropy Bayesian priors, constrained by the
expected utility. We explore how such priors aid inference of system parameters
with limited data and enable optimality hypothesis testing: is the utility higher
than by chance?\r\nChapter 3 examines the ultimate biological optimization process:
evolution by natural selection. As some individuals survive and reproduce more
successfully than others, populations evolve towards fitter genotypes and phenotypes.
We formalize this as accumulation of genetic information, and use population genetics
theory to study how much such information can be accumulated per generation and
maintained in the face of random mutation and genetic drift. We identify the population
size and fitness variance as the key quantities that control information accumulation
and maintenance.\r\nChapter 4 reuses the concept of genetic information from Chapter
3, but from a different perspective: we ask how much genetic information organisms
actually need, in particular in the context of gene regulation. For example, how
much information is needed to bind transcription factors at correct locations
within the genome? Population genetics provides us with a refined answer: with
an increasing population size, populations achieve higher fitness by maintaining
more genetic information. Moreover, regulatory parameters experience selection
pressure to optimize the fitness-information trade-off, i.e. minimize the information
needed for a given fitness. This provides an evolutionary derivation of the optimization
priors introduced in Chapter 2.\r\nChapter 5 proves an upper bound on mutual information
between a signal and a communication channel output (such as neural activity).
Mutual information is an important utility measure for biological systems, but
its practical use can be difficult due to the large dimensionality of many biological
channels. Sometimes, a lower bound on mutual information is computed by replacing
the high-dimensional channel outputs with decodes (signal estimates). Our result
provides a corresponding upper bound, provided that the decodes are the maximum
posterior estimates of the signal."
acknowledged_ssus:
- _id: ScienComp
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Michal
full_name: Hledik, Michal
id: 4171253A-F248-11E8-B48F-1D18A9856A87
last_name: Hledik
citation:
ama: Hledik M. Genetic information and biological optimization. 2024. doi:10.15479/at:ista:15020
apa: Hledik, M. (2024). Genetic information and biological optimization.
Institute of Science and Technology Austria. https://doi.org/10.15479/at:ista:15020
chicago: Hledik, Michal. “Genetic Information and Biological Optimization.” Institute
of Science and Technology Austria, 2024. https://doi.org/10.15479/at:ista:15020.
ieee: M. Hledik, “Genetic information and biological optimization,” Institute of
Science and Technology Austria, 2024.
ista: Hledik M. 2024. Genetic information and biological optimization. Institute
of Science and Technology Austria.
mla: Hledik, Michal. Genetic Information and Biological Optimization. Institute
of Science and Technology Austria, 2024, doi:10.15479/at:ista:15020.
short: M. Hledik, Genetic Information and Biological Optimization, Institute of
Science and Technology Austria, 2024.
corr_author: '1'
date_created: 2024-02-23T14:02:04Z
date_published: 2024-02-23T00:00:00Z
date_updated: 2026-04-07T12:59:25Z
day: '23'
ddc:
- '576'
- '519'
degree_awarded: PhD
department:
- _id: GradSch
- _id: NiBa
- _id: GaTk
doi: 10.15479/at:ista:15020
ec_funded: 1
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checksum: b2d3da47c98d481577a4baf68944fe41
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creator: mhledik
date_created: 2024-02-23T13:50:53Z
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relation: source_file
file_date_updated: 2024-02-23T14:20:16Z
has_accepted_license: '1'
keyword:
- Theoretical biology
- Optimality
- Evolution
- Information
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
page: '158'
project:
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '665385'
name: International IST Doctoral Program
- _id: 2665AAFE-B435-11E9-9278-68D0E5697425
grant_number: RGP0034/2018
name: Can evolution minimize spurious signaling crosstalk to reach optimal performance?
- _id: bd6958e0-d553-11ed-ba76-86eba6a76c00
grant_number: '101055327'
name: Understanding the evolution of continuous genomes
publication_identifier:
issn:
- 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
record:
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- id: '12081'
relation: part_of_dissertation
status: public
- id: '7553'
relation: part_of_dissertation
status: public
status: public
supervisor:
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
- first_name: Gašper
full_name: Tkačik, Gašper
id: 3D494DCA-F248-11E8-B48F-1D18A9856A87
last_name: Tkačik
orcid: 0000-0002-6699-1455
title: Genetic information and biological optimization
type: dissertation
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
year: '2024'
...
---
_id: '15099'
abstract:
- lang: eng
text: Speciation is a key evolutionary process that is not yet fully understood.
Combining population genomic and ecological data from multiple diverging pairs
of marine snails (Littorina) supports the search for speciation mechanisms. Placing
pairs on a one-dimensional speciation continuum, from undifferentiated populations
to species, obscured the complexity of speciation. Adding multiple axes helped
to describe either speciation routes or reproductive isolation in the snails.
Divergent ecological selection repeatedly generated barriers between ecotypes,
but appeared less important in completing speciation while genetic incompatibilities
played a key role. Chromosomal inversions contributed to genomic barriers, but
with variable impact. A multidimensional (hypercube) approach supported framing
of questions and identification of knowledge gaps and can be useful to understand
speciation in many other systems.
acknowledgement: KJ, MR, and RKB were supported by grants from the Swedish Research
Council (2021-0419, 2021-05243, and 2018-03695, respectively). RKB was also supported
by the Leverhulme Trust (RPG-2021-141), RF by FCT- Portuguese Science Foundation
(PTDC/BIA-EVL/1614/2021 and 2020.00275.CEECIND), and AMW by Norwegian Research Council
RCN (Project number 315287). We thank the members of the Integration of Speciation
Research network for stimulating discussions, the Littorina research community for
important contributions of data and analyses, and Cynthia Riginos for useful comments
on an earlier draft.
article_processing_charge: Yes (in subscription journal)
article_type: review
author:
- first_name: Kerstin
full_name: Johannesson, Kerstin
last_name: Johannesson
- first_name: Rui
full_name: Faria, Rui
last_name: Faria
- first_name: Alan
full_name: Le Moan, Alan
last_name: Le Moan
- first_name: Marina
full_name: Rafajlović, Marina
last_name: Rafajlović
- first_name: Anja M
full_name: Westram, Anja M
id: 3C147470-F248-11E8-B48F-1D18A9856A87
last_name: Westram
orcid: 0000-0003-1050-4969
- first_name: Roger K.
full_name: Butlin, Roger K.
last_name: Butlin
- first_name: Sean
full_name: Stankowski, Sean
id: 43161670-5719-11EA-8025-FABC3DDC885E
last_name: Stankowski
citation:
ama: Johannesson K, Faria R, Le Moan A, et al. Diverse pathways to speciation revealed
by marine snails. Trends in Genetics. 2024;40(4):337-351. doi:10.1016/j.tig.2024.01.002
apa: Johannesson, K., Faria, R., Le Moan, A., Rafajlović, M., Westram, A. M., Butlin,
R. K., & Stankowski, S. (2024). Diverse pathways to speciation revealed by
marine snails. Trends in Genetics. Elsevier. https://doi.org/10.1016/j.tig.2024.01.002
chicago: Johannesson, Kerstin, Rui Faria, Alan Le Moan, Marina Rafajlović, Anja
M Westram, Roger K. Butlin, and Sean Stankowski. “Diverse Pathways to Speciation
Revealed by Marine Snails.” Trends in Genetics. Elsevier, 2024. https://doi.org/10.1016/j.tig.2024.01.002.
ieee: K. Johannesson et al., “Diverse pathways to speciation revealed by
marine snails,” Trends in Genetics, vol. 40, no. 4. Elsevier, pp. 337–351,
2024.
ista: Johannesson K, Faria R, Le Moan A, Rafajlović M, Westram AM, Butlin RK, Stankowski
S. 2024. Diverse pathways to speciation revealed by marine snails. Trends in Genetics.
40(4), 337–351.
mla: Johannesson, Kerstin, et al. “Diverse Pathways to Speciation Revealed by Marine
Snails.” Trends in Genetics, vol. 40, no. 4, Elsevier, 2024, pp. 337–51,
doi:10.1016/j.tig.2024.01.002.
short: K. Johannesson, R. Faria, A. Le Moan, M. Rafajlović, A.M. Westram, R.K. Butlin,
S. Stankowski, Trends in Genetics 40 (2024) 337–351.
date_created: 2024-03-10T23:00:54Z
date_published: 2024-04-01T00:00:00Z
date_updated: 2025-09-04T12:18:08Z
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publication: Trends in Genetics
publication_identifier:
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publisher: Elsevier
quality_controlled: '1'
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title: Diverse pathways to speciation revealed by marine snails
tmp:
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legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
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type: journal_article
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year: '2024'
...
---
_id: '15358'
abstract:
- lang: eng
text: 'We consider how a population of N haploid individuals responds to directional
selection on standing variation, with no new variation from recombination or mutation.
Individuals have trait values z1,…,zN, which are drawn from a distribution ψ;
the fitness of individual i is proportional to [Formula: see text] . For illustration,
we consider the Laplace and Gaussian distributions, which are parametrised only
by the variance V0, and show that for large N, there is a scaling limit which
depends on a single parameter NV0. When selection is weak relative to drift (NV0≪1),
the variance decreases exponentially at rate 1/N, and the expected ultimate gain
in log fitness (scaled by V0), is just NV0, which is the same as Robertson''s
(1960) prediction for a sexual population. In contrast, when selection is strong
relative to drift (NV0≫1), the ultimate gain can be found by approximating the
establishment of alleles by a branching process in which each allele competes
independently with the population mean and the fittest allele to establish is
certain to fix. Then, if the probability of survival to time t∼1/V0 of an allele
with value z is P(z), with mean P¯, the winning allele is the fittest of NP¯ survivors
drawn from a distribution ψP/P¯. The expected ultimate change is ∼2log(1.15NV0)
for a Gaussian distribution, and ∼-12log0.36NV0-log-log0.36NV0 for a Laplace distribution.
This approach also predicts the variability of the process, and its dynamics;
we show that in the strong selection regime, the expected genetic variance decreases
as ∼t-3 at large times. We discuss how these results may be related to selection
on standing variation that is spread along a linear chromosome.'
acknowledgement: We thank Emmanuel Schertzer and two reviewers for comments on this
manuscript. NB thanks the European Research Council for support via the grant “HaplotypeStructure”
101055327. We would also like to give our sincere thanks to Alison Etheridge for
her insight, inspiration and support over the years.
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
- first_name: Himani
full_name: Sachdeva, Himani
id: 42377A0A-F248-11E8-B48F-1D18A9856A87
last_name: Sachdeva
citation:
ama: Barton NH, Sachdeva H. Limits to selection on standing variation in an asexual
population. Theoretical Population Biology. 2024;157:129-137. doi:10.1016/j.tpb.2024.04.001
apa: Barton, N. H., & Sachdeva, H. (2024). Limits to selection on standing variation
in an asexual population. Theoretical Population Biology. Elsevier. https://doi.org/10.1016/j.tpb.2024.04.001
chicago: Barton, Nicholas H, and Himani Sachdeva. “Limits to Selection on Standing
Variation in an Asexual Population.” Theoretical Population Biology. Elsevier,
2024. https://doi.org/10.1016/j.tpb.2024.04.001.
ieee: N. H. Barton and H. Sachdeva, “Limits to selection on standing variation in
an asexual population,” Theoretical Population Biology, vol. 157. Elsevier,
pp. 129–137, 2024.
ista: Barton NH, Sachdeva H. 2024. Limits to selection on standing variation in
an asexual population. Theoretical Population Biology. 157, 129–137.
mla: Barton, Nicholas H., and Himani Sachdeva. “Limits to Selection on Standing
Variation in an Asexual Population.” Theoretical Population Biology, vol.
157, Elsevier, 2024, pp. 129–37, doi:10.1016/j.tpb.2024.04.001.
short: N.H. Barton, H. Sachdeva, Theoretical Population Biology 157 (2024) 129–137.
corr_author: '1'
date_created: 2024-05-05T22:01:03Z
date_published: 2024-06-01T00:00:00Z
date_updated: 2025-09-04T13:56:11Z
day: '01'
ddc:
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department:
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doi: 10.1016/j.tpb.2024.04.001
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project:
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grant_number: '101055327'
name: Understanding the evolution of continuous genomes
publication: Theoretical Population Biology
publication_identifier:
eissn:
- 1096-0325
issn:
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publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Limits to selection on standing variation in an asexual population
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_id: '18491'
abstract:
- lang: eng
text: Predicting the outcomes of adaptation is a major goal of evolutionary biology.
When temporal changes in the environment mirror spatial gradients, it opens up
the potential for predicting the course of adaptive evolution over time based
on patterns of spatial genetic and phenotypic variation. We assessed this approach
in a 30-year transplant experiment in the intertidal snail Littorina saxatilis.
In 1992, snails were transplanted from a predation-dominated environment to one
dominated by wave action. On the basis of spatial patterns, we predicted transitions
in shell size and morphology, allele frequencies at positions throughout the genome,
and chromosomal rearrangement frequencies. Observed changes closely agreed with
predictions and transformation was both dramatic and rapid. Hence, adaptation
can be predicted from knowledge of the phenotypic and genetic variation among
populations.
acknowledgement: 'This work was received funding from the following: Norwegian Research
Council RCN project 315287 (A.M.W.), Swedish Research Council 2021-04191 (K.J.),
European Research Council grant 101055327 HaplotypeStructure (N.B.), Austrian Science
Fund FWF; P 32166-B32 Snapdragon Speciation (N.B.), European Research Council (R.B.),
and Portuguese Foundation for Science and Technology FCT: 2020.00275.CEECIND and
PTDC/BIA-EVL/1614/2021 (R.F.).'
article_number: eadp2102
article_processing_charge: Yes
article_type: original
author:
- first_name: Diego Fernando
full_name: Garcia Castillo, Diego Fernando
id: ae681a14-dc74-11ea-a0a7-c6ef18161701
last_name: Garcia Castillo
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
- first_name: Rui
full_name: Faria, Rui
last_name: Faria
- first_name: Jenny
full_name: Larsson, Jenny
last_name: Larsson
- first_name: Sean
full_name: Stankowski, Sean
id: 43161670-5719-11EA-8025-FABC3DDC885E
last_name: Stankowski
- first_name: Roger
full_name: Butlin, Roger
last_name: Butlin
- first_name: Kerstin
full_name: Johannesson, Kerstin
last_name: Johannesson
- first_name: Anja M
full_name: Westram, Anja M
id: 3C147470-F248-11E8-B48F-1D18A9856A87
last_name: Westram
orcid: 0000-0003-1050-4969
citation:
ama: 'Garcia Castillo DF, Barton NH, Faria R, et al. Predicting rapid adaptation
in time from adaptation in space: A 30-year field experiment in marine snails.
Science Advances. 2024;10(41). doi:10.1126/sciadv.adp2102'
apa: 'Garcia Castillo, D. F., Barton, N. H., Faria, R., Larsson, J., Stankowski,
S., Butlin, R., … Westram, A. M. (2024). Predicting rapid adaptation in time from
adaptation in space: A 30-year field experiment in marine snails. Science Advances.
AAAS. https://doi.org/10.1126/sciadv.adp2102'
chicago: 'Garcia Castillo, Diego Fernando, Nicholas H Barton, Rui Faria, Jenny Larsson,
Sean Stankowski, Roger Butlin, Kerstin Johannesson, and Anja M Westram. “Predicting
Rapid Adaptation in Time from Adaptation in Space: A 30-Year Field Experiment
in Marine Snails.” Science Advances. AAAS, 2024. https://doi.org/10.1126/sciadv.adp2102.'
ieee: 'D. F. Garcia Castillo et al., “Predicting rapid adaptation in time
from adaptation in space: A 30-year field experiment in marine snails,” Science
Advances, vol. 10, no. 41. AAAS, 2024.'
ista: 'Garcia Castillo DF, Barton NH, Faria R, Larsson J, Stankowski S, Butlin R,
Johannesson K, Westram AM. 2024. Predicting rapid adaptation in time from adaptation
in space: A 30-year field experiment in marine snails. Science Advances. 10(41),
eadp2102.'
mla: 'Garcia Castillo, Diego Fernando, et al. “Predicting Rapid Adaptation in Time
from Adaptation in Space: A 30-Year Field Experiment in Marine Snails.” Science
Advances, vol. 10, no. 41, eadp2102, AAAS, 2024, doi:10.1126/sciadv.adp2102.'
short: D.F. Garcia Castillo, N.H. Barton, R. Faria, J. Larsson, S. Stankowski, R.
Butlin, K. Johannesson, A.M. Westram, Science Advances 10 (2024).
corr_author: '1'
date_created: 2024-11-03T23:01:44Z
date_published: 2024-10-11T00:00:00Z
date_updated: 2026-04-07T11:42:09Z
day: '11'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.1126/sciadv.adp2102
external_id:
isi:
- '001354405400018'
file:
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checksum: 96aa0d3640fa9401975138e59054f84e
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creator: dernst
date_created: 2024-11-04T09:35:49Z
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file_name: 2024_ScienceAdv_Castillo.pdf
file_size: 1154107
relation: main_file
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file_date_updated: 2024-11-04T09:35:49Z
has_accepted_license: '1'
intvolume: ' 10'
isi: 1
issue: '41'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
project:
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grant_number: '101055327'
name: Understanding the evolution of continuous genomes
- _id: 05959E1C-7A3F-11EA-A408-12923DDC885E
grant_number: P32166
name: Snapdragon Speciation
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call_identifier: FWF
name: FWF Open Access Fund
publication: Science Advances
publication_identifier:
eissn:
- 2375-2548
publication_status: published
publisher: AAAS
quality_controlled: '1'
related_material:
link:
- relation: software
url: https://github.com/fernandoGarcia21/littorina_saxatilis_skerry
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title: 'Predicting rapid adaptation in time from adaptation in space: A 30-year field
experiment in marine snails'
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OA_place: repository
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abstract:
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text: 'Scripts and data used in the research study Predicting rapid adaptation in
time from adaptation in space: a 30-year field experiment in marine snails. https://doi.org/10.1101/2023.09.27.559715'
article_processing_charge: No
author:
- first_name: Diego Fernando
full_name: Garcia Castillo, Diego Fernando
id: ae681a14-dc74-11ea-a0a7-c6ef18161701
last_name: Garcia Castillo
- first_name: Nicholas H
full_name: Barton, Nicholas H
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last_name: Barton
orcid: 0000-0002-8548-5240
- first_name: Rui
full_name: Faria, Rui
last_name: Faria
- first_name: Jenny
full_name: Larsson, Jenny
last_name: Larsson
- first_name: Sean
full_name: Stankowski, Sean
id: 43161670-5719-11EA-8025-FABC3DDC885E
last_name: Stankowski
- first_name: Roger
full_name: Butlin, Roger
last_name: Butlin
- first_name: Kerstin
full_name: Johannesson, Kerstin
last_name: Johannesson
- first_name: Anja M
full_name: Westram, Anja M
id: 3C147470-F248-11E8-B48F-1D18A9856A87
last_name: Westram
orcid: 0000-0003-1050-4969
citation:
ama: 'Garcia Castillo DF, Barton NH, Faria R, et al. Data and code for: Predicting
rapid adaptation in time from adaptation in space: a 30-year field experiment
in marine snails. 2024. doi:10.5281/ZENODO.12159343'
apa: 'Garcia Castillo, D. F., Barton, N. H., Faria, R., Larsson, J., Stankowski,
S., Butlin, R., … Westram, A. M. (2024). Data and code for: Predicting rapid adaptation
in time from adaptation in space: a 30-year field experiment in marine snails.
Zenodo. https://doi.org/10.5281/ZENODO.12159343'
chicago: 'Garcia Castillo, Diego Fernando, Nicholas H Barton, Rui Faria, Jenny Larsson,
Sean Stankowski, Roger Butlin, Kerstin Johannesson, and Anja M Westram. “Data
and Code for: Predicting Rapid Adaptation in Time from Adaptation in Space: A
30-Year Field Experiment in Marine Snails.” Zenodo, 2024. https://doi.org/10.5281/ZENODO.12159343.'
ieee: 'D. F. Garcia Castillo et al., “Data and code for: Predicting rapid
adaptation in time from adaptation in space: a 30-year field experiment in marine
snails.” Zenodo, 2024.'
ista: 'Garcia Castillo DF, Barton NH, Faria R, Larsson J, Stankowski S, Butlin R,
Johannesson K, Westram AM. 2024. Data and code for: Predicting rapid adaptation
in time from adaptation in space: a 30-year field experiment in marine snails,
Zenodo, 10.5281/ZENODO.12159343.'
mla: 'Garcia Castillo, Diego Fernando, et al. Data and Code for: Predicting Rapid
Adaptation in Time from Adaptation in Space: A 30-Year Field Experiment in Marine
Snails. Zenodo, 2024, doi:10.5281/ZENODO.12159343.'
short: D.F. Garcia Castillo, N.H. Barton, R. Faria, J. Larsson, S. Stankowski, R.
Butlin, K. Johannesson, A.M. Westram, (2024).
corr_author: '1'
date_created: 2024-11-04T09:33:17Z
date_published: 2024-06-19T00:00:00Z
date_updated: 2026-04-16T12:20:37Z
day: '19'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.5281/ZENODO.12159343
has_accepted_license: '1'
main_file_link:
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url: https://doi.org/10.5281/zenodo.12159344
month: '06'
oa: 1
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publisher: Zenodo
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title: 'Data and code for: Predicting rapid adaptation in time from adaptation in
space: a 30-year field experiment in marine snails'
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...