---
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'
fulldoi: https://doi.org/10.1093/evolut/qpaf143
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: repository
OA_type: green
_id: '18944'
abstract:
- lang: eng
text: 'Understanding connectivity patterns exhibited by endangered species living
in fragmented habitats is fundamental to improving management and conservation
actions. Such improvements can be particularly pressing at the trailing edges
of these habitats, where populations are facing the greatest challenges from climate
change, and appear even more crucial if the species is commercially harvested.
Seascape genetics have been increasingly used to meet these needs. In this study,
we examined connectivity patterns among 32 populations of the oarweed kelp Laminaria
digitata located at the species’ southern range limit. The distance
(or sampling gap) between neighboring populations ranged from a few km to a few
100s of km. By genotyping 11 microsatellite markers, we aimed to (1) refine analyses
of population structure; (2) test whether on-shelf islands are genetically more
differentiated than mainland populations; (3) evaluate the relative importance
of various abiotic conditions in shaping the genetic structure; and (4) evaluate
if the relative importance of each environmental factor varied according to sampling
schemes. Our analyses revealed a positive relationship between connectivity links
and genetic diversity: populations with high levels of connectivity were genetically
enriched while isolated populations showed signs of genetic erosion. The genetically
impoverished populations corresponded to the southernmost populations as well
as populations along the northern coast of Brittany (Locquirec, Saint-Malo Bay)
and the northernmost population in Pas-de-Calais. By performing distance-based
redundancy analysis on various sampling schemes, geographic distance appeared
as the dominant factor influencing connectivity between populations separated
by great distances, while hydrodynamic processes were the main factor when analyzing
at a final spatial resolution.'
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: L
full_name: Reynes, L
last_name: Reynes
- first_name: F
full_name: Tempera, F
last_name: Tempera
- first_name: T
full_name: Bajjouk, T
last_name: Bajjouk
- first_name: A
full_name: Blanfuné, A
last_name: Blanfuné
- first_name: C
full_name: Chevalier, C
last_name: Chevalier
- first_name: M
full_name: Laurans, M
last_name: Laurans
- first_name: S
full_name: Mauger, S
last_name: Mauger
- first_name: M
full_name: Sourisseau, M
last_name: Sourisseau
- first_name: J
full_name: Assis, J
last_name: Assis
- first_name: L
full_name: Lévêque, L
last_name: Lévêque
- first_name: M
full_name: Valero, M
last_name: Valero
citation:
ama: Fouqueau L, Reynes L, Tempera F, et al. Seascape genetic study on Laminaria
digitata underscores the critical role of sampling schemes. Marine Ecology
Progress Series. 2024;740:23-42. doi:10.3354/meps14640
apa: Fouqueau, L., Reynes, L., Tempera, F., Bajjouk, T., Blanfuné, A., Chevalier,
C., … Valero, M. (2024). Seascape genetic study on Laminaria digitata underscores
the critical role of sampling schemes. Marine Ecology Progress Series.
Inter-Research Science Center. https://doi.org/10.3354/meps14640
chicago: Fouqueau, Louise, L Reynes, F Tempera, T Bajjouk, A Blanfuné, C Chevalier,
M Laurans, et al. “Seascape Genetic Study on Laminaria Digitata Underscores the
Critical Role of Sampling Schemes.” Marine Ecology Progress Series. Inter-Research
Science Center, 2024. https://doi.org/10.3354/meps14640.
ieee: L. Fouqueau et al., “Seascape genetic study on Laminaria digitata underscores
the critical role of sampling schemes,” Marine Ecology Progress Series,
vol. 740. Inter-Research Science Center, pp. 23–42, 2024.
ista: Fouqueau L, Reynes L, Tempera F, Bajjouk T, Blanfuné A, Chevalier C, Laurans
M, Mauger S, Sourisseau M, Assis J, Lévêque L, Valero M. 2024. Seascape genetic
study on Laminaria digitata underscores the critical role of sampling schemes.
Marine Ecology Progress Series. 740, 23–42.
mla: Fouqueau, Louise, et al. “Seascape Genetic Study on Laminaria Digitata Underscores
the Critical Role of Sampling Schemes.” Marine Ecology Progress Series,
vol. 740, Inter-Research Science Center, 2024, pp. 23–42, doi:10.3354/meps14640.
short: L. Fouqueau, L. Reynes, F. Tempera, T. Bajjouk, A. Blanfuné, C. Chevalier,
M. Laurans, S. Mauger, M. Sourisseau, J. Assis, L. Lévêque, M. Valero, Marine
Ecology Progress Series 740 (2024) 23–42.
corr_author: '1'
date_created: 2025-01-29T09:09:10Z
date_published: 2024-07-25T00:00:00Z
date_updated: 2025-01-29T09:12:34Z
day: '25'
department:
- _id: NiBa
doi: 10.3354/meps14640
fulldoi: https://doi.org/10.3354/meps14640
intvolume: ' 740'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://inria.hal.science/hal-04624490/
month: '07'
oa: 1
oa_version: Submitted Version
page: 23-42
publication: Marine Ecology Progress Series
publication_identifier:
eissn:
- 1616-1599
issn:
- 0171-8630
publication_status: published
publisher: Inter-Research Science Center
quality_controlled: '1'
scopus_import: '1'
status: public
title: Seascape genetic study on Laminaria digitata underscores the critical role
of sampling schemes
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 740
year: '2024'
...
---
_id: '17207'
acknowledgement: "This research was funded by the Austrian Science Fund (FWF), project
doi: 10.55776/P32896, Institutional Identifier: 501100002428, grant number: P32896
and L.F. acknowledges the support of the NOMIS-ISTA Fellowship Program.\r\nWe would
like to thank Nick Barton, Roger Butlin, Stuart Baird, Patrik Nosil, and Jason Sexton
for their insightful comments on the earlier drafts, and to John Carchrae for his
valuable contribution in refining phrasing and enhancing clarity. For open access
purposes, the author has applied a CC BY public copyright license to any author-accepted
manuscript version arising from this submission."
article_processing_charge: No
article_type: letter_note
author:
- first_name: Louise
full_name: Fouqueau, Louise
id: 1676e173-8143-11ed-8927-fe165216a93f
last_name: Fouqueau
orcid: 0000-0003-0371-9339
- first_name: Jitka
full_name: Polechova, Jitka
id: 3BBFB084-F248-11E8-B48F-1D18A9856A87
last_name: Polechova
orcid: 0000-0003-0951-3112
citation:
ama: 'Fouqueau L, Polechova J. Eco-evolutionary dynamics in changing environments:
Integrating theory with data. Journal of evolutionary biology. 2024;37(6):579-587.
doi:10.1093/jeb/voae067'
apa: 'Fouqueau, L., & Polechova, J. (2024). Eco-evolutionary dynamics in changing
environments: Integrating theory with data. Journal of Evolutionary Biology.
Oxford University Press. https://doi.org/10.1093/jeb/voae067'
chicago: 'Fouqueau, Louise, and Jitka Polechova. “Eco-Evolutionary Dynamics in Changing
Environments: Integrating Theory with Data.” Journal of Evolutionary Biology.
Oxford University Press, 2024. https://doi.org/10.1093/jeb/voae067.'
ieee: 'L. Fouqueau and J. Polechova, “Eco-evolutionary dynamics in changing environments:
Integrating theory with data,” Journal of evolutionary biology, vol. 37,
no. 6. Oxford University Press, pp. 579–587, 2024.'
ista: 'Fouqueau L, Polechova J. 2024. Eco-evolutionary dynamics in changing environments:
Integrating theory with data. Journal of evolutionary biology. 37(6), 579–587.'
mla: 'Fouqueau, Louise, and Jitka Polechova. “Eco-Evolutionary Dynamics in Changing
Environments: Integrating Theory with Data.” Journal of Evolutionary Biology,
vol. 37, no. 6, Oxford University Press, 2024, pp. 579–87, doi:10.1093/jeb/voae067.'
short: L. Fouqueau, J. Polechova, Journal of Evolutionary Biology 37 (2024) 579–587.
date_created: 2024-07-07T22:01:04Z
date_published: 2024-06-28T00:00:00Z
date_updated: 2026-06-18T17:53:35Z
day: '28'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.1093/jeb/voae067
external_id:
isi:
- '001258359900001'
pmid:
- '38941551'
fulldoi: https://doi.org/10.1093/jeb/voae067
intvolume: ' 37'
isi: 1
issue: '6'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/jeb/voae067
month: '06'
oa: 1
oa_version: Published Version
page: 579-587
pmid: 1
project:
- _id: c08d3278-5a5b-11eb-8a69-fdb09b55f4b8
grant_number: P32896
name: Causes and consequences of population fragmentation
- _id: 9B861AAC-BA93-11EA-9121-9846C619BF3A
name: NOMIS Fellowship Program
publication: Journal of evolutionary biology
publication_identifier:
eissn:
- 1420-9101
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Eco-evolutionary dynamics in changing environments: Integrating theory with
data'
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: 37
year: '2024'
...
---
_id: '17237'
abstract:
- lang: eng
text: 'The impact of climate change on populations will be contingent upon their
contemporary adaptive evolution. In this study, we investigated the contemporary
evolution of 4 populations of the cold-water kelp Laminaria digitata by analyzing
their spatial and temporal genomic variations using ddRAD-sequencing. These populations
were sampled from the center to the southern margin of its north-eastern Atlantic
distribution at 2 time points, spanning at least 2 generations. Through genome
scans for local adaptation at a single time point, we identified candidate loci
that showed clinal variation correlated with changes in sea surface temperature
(SST) along latitudinal gradients. This finding suggests that SST may drive the
adaptive response of these kelp populations, although factors such as species’
demographic history should also be considered. Additionally, we performed a simulation
approach to distinguish the effect of selection from genetic drift in allele frequency
changes over time. This enabled the detection of loci in the southernmost population
that exhibited temporal differentiation beyond what would be expected from genetic
drift alone: these are candidate loci which could have evolved under selection
over time. In contrast, we did not detect any outlier locus based on temporal
differentiation in the population from the North Sea, which also displayed low
and decreasing levels of genetic diversity. The diverse evolutionary scenarios
observed among populations can be attributed to variations in the prevalence of
selection relative to genetic drift across different environments. Therefore,
our study highlights the potential of temporal genomics to offer valuable insights
into the contemporary evolution of marine foundation species facing climate change.'
acknowledgement: "This work was funded by the EU project MARFOR Biodiversa/004/2015.
L.F. was additionally funded by the Region Bretagne (ARED 2017 REEALG) and the NOMIS
Foundation. The project leading to this publication has received funding from the
EC2CO (CNRS) fund and from the European FEDER Fund under project 1166-39417.\r\nThis
work is especially dedicated to the memory of Gernot Glöckner who contributed to
the sequencing of Laminaria digitata genome and passed away in very recent time.
The authors thank the ABiMS platform of the Roscoff biological station (http://abims.sb-roscoff.fr)
for providing the HPC resources that contributed to the search results reported
in this document. We also acknowledge the staff of the “Cluster de calcul intensif
HPC” Platform of the OSU Institut Pythéas (Aix-Marseille Université, INSU-CNRS)
for providing the computing facilities."
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Lauric
full_name: Reynes, Lauric
last_name: Reynes
- first_name: Louise
full_name: Fouqueau, Louise
id: 1676e173-8143-11ed-8927-fe165216a93f
last_name: Fouqueau
orcid: 0000-0003-0371-9339
- first_name: Didier
full_name: Aurelle, Didier
last_name: Aurelle
- first_name: Stephane
full_name: Mauger, Stephane
last_name: Mauger
- first_name: Christophe
full_name: Destombe, Christophe
last_name: Destombe
- first_name: Myriam
full_name: Valero, Myriam
last_name: Valero
citation:
ama: Reynes L, Fouqueau L, Aurelle D, Mauger S, Destombe C, Valero M. Temporal genomics
help in deciphering neutral and adaptive patterns in the contemporary evolution
of kelp populations. Journal of Evolutionary Biology. 2024;37(6):677-692.
doi:10.1093/jeb/voae048
apa: Reynes, L., Fouqueau, L., Aurelle, D., Mauger, S., Destombe, C., & Valero,
M. (2024). Temporal genomics help in deciphering neutral and adaptive patterns
in the contemporary evolution of kelp populations. Journal of Evolutionary
Biology. Oxford University Press. https://doi.org/10.1093/jeb/voae048
chicago: Reynes, Lauric, Louise Fouqueau, Didier Aurelle, Stephane Mauger, Christophe
Destombe, and Myriam Valero. “Temporal Genomics Help in Deciphering Neutral and
Adaptive Patterns in the Contemporary Evolution of Kelp Populations.” Journal
of Evolutionary Biology. Oxford University Press, 2024. https://doi.org/10.1093/jeb/voae048.
ieee: L. Reynes, L. Fouqueau, D. Aurelle, S. Mauger, C. Destombe, and M. Valero,
“Temporal genomics help in deciphering neutral and adaptive patterns in the contemporary
evolution of kelp populations,” Journal of Evolutionary Biology, vol. 37,
no. 6. Oxford University Press, pp. 677–692, 2024.
ista: Reynes L, Fouqueau L, Aurelle D, Mauger S, Destombe C, Valero M. 2024. Temporal
genomics help in deciphering neutral and adaptive patterns in the contemporary
evolution of kelp populations. Journal of Evolutionary Biology. 37(6), 677–692.
mla: Reynes, Lauric, et al. “Temporal Genomics Help in Deciphering Neutral and Adaptive
Patterns in the Contemporary Evolution of Kelp Populations.” Journal of Evolutionary
Biology, vol. 37, no. 6, Oxford University Press, 2024, pp. 677–92, doi:10.1093/jeb/voae048.
short: L. Reynes, L. Fouqueau, D. Aurelle, S. Mauger, C. Destombe, M. Valero, Journal
of Evolutionary Biology 37 (2024) 677–692.
date_created: 2024-07-14T22:01:12Z
date_published: 2024-06-01T00:00:00Z
date_updated: 2026-09-09T09:33:37Z
day: '01'
department:
- _id: NiBa
doi: 10.1093/jeb/voae048
external_id:
arxiv:
- '2404.14003'
pmid:
- '38629140'
fulldoi: https://doi.org/10.1093/jeb/voae048
intvolume: ' 37'
issue: '6'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2404.14003
month: '06'
oa: 1
oa_version: Preprint
page: 677-692
pmid: 1
publication: Journal of Evolutionary Biology
publication_identifier:
eissn:
- 1420-9101
issn:
- 1010-061X
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
related_material:
record:
- id: '22867'
relation: research_data
status: public
scopus_import: '1'
status: public
title: Temporal genomics help in deciphering neutral and adaptive patterns in the
contemporary evolution of kelp populations
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 37
year: '2024'
...