---
_id: '916'
abstract:
- lang: eng
text: We study the quadratic assignment problem, in computer vision also known as
graph matching. Two leading solvers for this problem optimize the Lagrange decomposition
duals with sub-gradient and dual ascent (also known as message passing) updates.
We explore this direction further and propose several additional Lagrangean relaxations
of the graph matching problem along with corresponding algorithms, which are all
based on a common dual ascent framework. Our extensive empirical evaluation gives
several theoretical insights and suggests a new state-of-the-art anytime solver
for the considered problem. Our improvement over state-of-the-art is particularly
visible on a new dataset with large-scale sparse problem instances containing
more than 500 graph nodes each.
article_processing_charge: No
author:
- first_name: Paul
full_name: Swoboda, Paul
id: 446560C6-F248-11E8-B48F-1D18A9856A87
last_name: Swoboda
- first_name: Carsten
full_name: Rother, Carsten
last_name: Rother
- first_name: Carsten
full_name: Abu Alhaija, Carsten
last_name: Abu Alhaija
- first_name: Dagmar
full_name: Kainmueller, Dagmar
last_name: Kainmueller
- first_name: Bogdan
full_name: Savchynskyy, Bogdan
last_name: Savchynskyy
citation:
ama: 'Swoboda P, Rother C, Abu Alhaija C, Kainmueller D, Savchynskyy B. A study
of lagrangean decompositions and dual ascent solvers for graph matching. In: Vol
2017. IEEE; 2017:7062-7071. doi:10.1109/CVPR.2017.747'
apa: 'Swoboda, P., Rother, C., Abu Alhaija, C., Kainmueller, D., & Savchynskyy,
B. (2017). A study of lagrangean decompositions and dual ascent solvers for graph
matching (Vol. 2017, pp. 7062–7071). Presented at the CVPR: Computer Vision and
Pattern Recognition, Honolulu, HA, United States: IEEE. https://doi.org/10.1109/CVPR.2017.747'
chicago: Swoboda, Paul, Carsten Rother, Carsten Abu Alhaija, Dagmar Kainmueller,
and Bogdan Savchynskyy. “A Study of Lagrangean Decompositions and Dual Ascent
Solvers for Graph Matching,” 2017:7062–71. IEEE, 2017. https://doi.org/10.1109/CVPR.2017.747.
ieee: 'P. Swoboda, C. Rother, C. Abu Alhaija, D. Kainmueller, and B. Savchynskyy,
“A study of lagrangean decompositions and dual ascent solvers for graph matching,”
presented at the CVPR: Computer Vision and Pattern Recognition, Honolulu, HA,
United States, 2017, vol. 2017, pp. 7062–7071.'
ista: 'Swoboda P, Rother C, Abu Alhaija C, Kainmueller D, Savchynskyy B. 2017. A
study of lagrangean decompositions and dual ascent solvers for graph matching.
CVPR: Computer Vision and Pattern Recognition vol. 2017, 7062–7071.'
mla: Swoboda, Paul, et al. A Study of Lagrangean Decompositions and Dual Ascent
Solvers for Graph Matching. Vol. 2017, IEEE, 2017, pp. 7062–71, doi:10.1109/CVPR.2017.747.
short: P. Swoboda, C. Rother, C. Abu Alhaija, D. Kainmueller, B. Savchynskyy, in:,
IEEE, 2017, pp. 7062–7071.
conference:
end_date: 2017-07-26
location: Honolulu, HA, United States
name: 'CVPR: Computer Vision and Pattern Recognition'
start_date: 2017-07-21
corr_author: '1'
date_created: 2018-12-11T11:49:11Z
date_published: 2017-01-01T00:00:00Z
date_updated: 2024-11-04T13:52:34Z
day: '01'
ddc:
- '000'
department:
- _id: VlKo
doi: 10.1109/CVPR.2017.747
ec_funded: 1
external_id:
isi:
- '000418371407018'
file:
- access_level: open_access
checksum: e38a2740daad1ea178465843b5072906
content_type: application/pdf
creator: dernst
date_created: 2019-01-18T12:49:38Z
date_updated: 2020-07-14T12:48:15Z
file_id: '5848'
file_name: 2017_CVPR_Swoboda2.pdf
file_size: 944332
relation: main_file
file_date_updated: 2020-07-14T12:48:15Z
has_accepted_license: '1'
intvolume: ' 2017'
isi: 1
language:
- iso: eng
month: '01'
oa: 1
oa_version: Submitted Version
page: 7062-7071
project:
- _id: 25FBA906-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '616160'
name: 'Discrete Optimization in Computer Vision: Theory and Practice'
publication_identifier:
isbn:
- 978-153860457-1
publication_status: published
publisher: IEEE
publist_id: '6525'
quality_controlled: '1'
scopus_import: '1'
status: public
title: A study of lagrangean decompositions and dual ascent solvers for graph matching
type: conference
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 2017
year: '2017'
...
---
_id: '917'
abstract:
- lang: eng
text: We propose a general dual ascent framework for Lagrangean decomposition
of combinatorial problems. Although methods of this type have shown their efficiency
for a number of problems, so far there was no general algorithm applicable to
multiple problem types. In this work, we propose such a general algorithm. It
depends on several parameters, which can be used to optimize its performance in
each particular setting. We demonstrate efficacy of our method on graph matching
and multicut problems, where it outperforms state-of-the-art solvers including
those based on subgradient optimization and off-the-shelf linear programming solvers.
article_processing_charge: No
author:
- first_name: Paul
full_name: Swoboda, Paul
id: 446560C6-F248-11E8-B48F-1D18A9856A87
last_name: Swoboda
- first_name: Jan
full_name: Kuske, Jan
last_name: Kuske
- first_name: Bogdan
full_name: Savchynskyy, Bogdan
last_name: Savchynskyy
citation:
ama: 'Swoboda P, Kuske J, Savchynskyy B. A dual ascent framework for Lagrangean
decomposition of combinatorial problems. In: Vol 2017. IEEE; 2017:4950-4960. doi:10.1109/CVPR.2017.526'
apa: 'Swoboda, P., Kuske, J., & Savchynskyy, B. (2017). A dual ascent framework
for Lagrangean decomposition of combinatorial problems (Vol. 2017, pp. 4950–4960).
Presented at the CVPR: Computer Vision and Pattern Recognition, Honolulu, HA,
United States: IEEE. https://doi.org/10.1109/CVPR.2017.526'
chicago: Swoboda, Paul, Jan Kuske, and Bogdan Savchynskyy. “A Dual Ascent Framework
for Lagrangean Decomposition of Combinatorial Problems,” 2017:4950–60. IEEE, 2017.
https://doi.org/10.1109/CVPR.2017.526.
ieee: 'P. Swoboda, J. Kuske, and B. Savchynskyy, “A dual ascent framework for Lagrangean
decomposition of combinatorial problems,” presented at the CVPR: Computer Vision
and Pattern Recognition, Honolulu, HA, United States, 2017, vol. 2017, pp. 4950–4960.'
ista: 'Swoboda P, Kuske J, Savchynskyy B. 2017. A dual ascent framework for Lagrangean
decomposition of combinatorial problems. CVPR: Computer Vision and Pattern Recognition
vol. 2017, 4950–4960.'
mla: Swoboda, Paul, et al. A Dual Ascent Framework for Lagrangean Decomposition
of Combinatorial Problems. Vol. 2017, IEEE, 2017, pp. 4950–60, doi:10.1109/CVPR.2017.526.
short: P. Swoboda, J. Kuske, B. Savchynskyy, in:, IEEE, 2017, pp. 4950–4960.
conference:
end_date: 2017-07-26
location: Honolulu, HA, United States
name: 'CVPR: Computer Vision and Pattern Recognition'
start_date: 2017-07-21
corr_author: '1'
date_created: 2018-12-11T11:49:11Z
date_published: 2017-07-01T00:00:00Z
date_updated: 2024-11-04T13:52:34Z
day: '01'
ddc:
- '000'
department:
- _id: VlKo
doi: 10.1109/CVPR.2017.526
ec_funded: 1
external_id:
isi:
- '000418371405005'
file:
- access_level: open_access
checksum: 72fd291046bd8e5717961bd68f6b6f03
content_type: application/pdf
creator: dernst
date_created: 2019-01-18T12:45:55Z
date_updated: 2020-07-14T12:48:15Z
file_id: '5847'
file_name: 2017_CVPR_Swoboda.pdf
file_size: 898652
relation: main_file
file_date_updated: 2020-07-14T12:48:15Z
has_accepted_license: '1'
intvolume: ' 2017'
isi: 1
language:
- iso: eng
month: '07'
oa: 1
oa_version: Submitted Version
page: 4950-4960
project:
- _id: 25FBA906-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '616160'
name: 'Discrete Optimization in Computer Vision: Theory and Practice'
publication_identifier:
isbn:
- 978-153860457-1
publication_status: published
publisher: IEEE
publist_id: '6524'
quality_controlled: '1'
scopus_import: '1'
status: public
title: A dual ascent framework for Lagrangean decomposition of combinatorial problems
type: conference
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 2017
year: '2017'
...
---
OA_place: publisher
_id: '938'
abstract:
- lang: eng
text: The thesis encompasses several topics of plant cell biology which were studied
in the model plant Arabidopsis thaliana. Chapter 1 concerns the plant hormone
auxin and its polar transport through cells and tissues. The highly controlled,
directional transport of auxin is facilitated by plasma membrane-localized transporters.
Transporters from the PIN family direct auxin transport due to their polarized
localizations at cell membranes. Substantial effort has been put into research
on cellular trafficking of PIN proteins, which is thought to underlie their polar
distribution. I participated in a forward genetic screen aimed at identifying
novel regulators of PIN polarity. The screen yielded several genes which may be
involved in PIN polarity regulation or participate in polar auxin transport by
other means. Chapter 2 focuses on the endomembrane system, with particular attention
to clathrin-mediated endocytosis. The project started with identification of several
proteins that interact with clathrin light chains. Among them, I focused on two
putative homologues of auxilin, which in non-plant systems is an endocytotic factor
known for uncoating clathrin-coated vesicles in the final step of endocytosis.
The body of my work consisted of an in-depth characterization of transgenic A.
thaliana lines overexpressing these putative auxilins in an inducible manner.
Overexpression of these proteins leads to an inhibition of endocytosis, as documented
by imaging of cargoes and clathrin-related endocytic machinery. An extension of
this work is an investigation into a concept of homeostatic regulation acting
between distinct transport processes in the endomembrane system. With auxilin
overexpressing lines, where endocytosis is blocked specifically, I made observations
on the mutual relationship between two opposite trafficking processes of secretion
and endocytosis. In Chapter 3, I analyze cortical microtubule arrays and their
relationship to auxin signaling and polarized growth in elongating cells. In plants,
microtubules are organized into arrays just below the plasma membrane, and it
is thought that their function is to guide membrane-docked cellulose synthase
complexes. These, in turn, influence cell wall structure and cell shape by directed
deposition of cellulose fibres. In elongating cells, cortical microtubule arrays
are able to reorient in relation to long cell axis, and these reorientations have
been linked to cell growth and to signaling of growth-regulating factors such
as auxin or light. In this chapter, I am addressing the causal relationship between
microtubule array reorientation, growth, and auxin signaling. I arrive at a model
where array reorientation is not guided by auxin directly, but instead is only
controlled by growth, which, in turn, is regulated by auxin.
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Maciek
full_name: Adamowski, Maciek
id: 45F536D2-F248-11E8-B48F-1D18A9856A87
last_name: Adamowski
orcid: 0000-0001-6463-5257
citation:
ama: Adamowski M. Investigations into cell polarity and trafficking in the plant
model Arabidopsis thaliana . 2017. doi:10.15479/AT:ISTA:th_842
apa: Adamowski, M. (2017). Investigations into cell polarity and trafficking
in the plant model Arabidopsis thaliana . Institute of Science and Technology
Austria. https://doi.org/10.15479/AT:ISTA:th_842
chicago: Adamowski, Maciek. “Investigations into Cell Polarity and Trafficking in
the Plant Model Arabidopsis Thaliana .” Institute of Science and Technology Austria,
2017. https://doi.org/10.15479/AT:ISTA:th_842.
ieee: M. Adamowski, “Investigations into cell polarity and trafficking in the plant
model Arabidopsis thaliana ,” Institute of Science and Technology Austria, 2017.
ista: Adamowski M. 2017. Investigations into cell polarity and trafficking in the
plant model Arabidopsis thaliana . Institute of Science and Technology Austria.
mla: Adamowski, Maciek. Investigations into Cell Polarity and Trafficking in
the Plant Model Arabidopsis Thaliana . Institute of Science and Technology
Austria, 2017, doi:10.15479/AT:ISTA:th_842.
short: M. Adamowski, Investigations into Cell Polarity and Trafficking in the Plant
Model Arabidopsis Thaliana , Institute of Science and Technology Austria, 2017.
corr_author: '1'
date_created: 2018-12-11T11:49:18Z
date_published: 2017-06-02T00:00:00Z
date_updated: 2026-04-08T14:20:45Z
day: '02'
ddc:
- '581'
- '583'
- '580'
degree_awarded: PhD
department:
- _id: JiFr
doi: 10.15479/AT:ISTA:th_842
file:
- access_level: closed
checksum: 193425764d9aaaed3ac57062a867b315
content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
creator: dernst
date_created: 2019-04-05T09:03:20Z
date_updated: 2020-07-14T12:48:15Z
file_id: '6215'
file_name: 2017_Adamowski-Thesis_Source.docx
file_size: 46903863
relation: source_file
- access_level: open_access
checksum: df5ab01be81f821e1b958596a1ec8d21
content_type: application/pdf
creator: dernst
date_created: 2019-04-05T09:03:19Z
date_updated: 2020-07-14T12:48:15Z
file_id: '6216'
file_name: 2017_Adamowski-Thesis.pdf
file_size: 8698888
relation: main_file
file_date_updated: 2020-07-14T12:48:15Z
has_accepted_license: '1'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: '117'
publication_identifier:
issn:
- 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
publist_id: '6483'
pubrep_id: '842'
related_material:
record:
- id: '1591'
relation: part_of_dissertation
status: public
status: public
supervisor:
- first_name: Jiří
full_name: Friml, Jiří
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
title: 'Investigations into cell polarity and trafficking in the plant model Arabidopsis
thaliana '
type: dissertation
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
year: '2017'
...
---
_id: '939'
abstract:
- lang: eng
text: We reveal the existence of continuous families of guided single-mode solitons
in planar waveguides with weakly nonlinear active core and absorbing boundaries.
Stable propagation of TE and TM-polarized solitons is accompanied by attenuation
of all other modes, i.e., the waveguide features properties of conservative and
dissipative systems. If the linear spectrum of the waveguide possesses exceptional
points, which occurs in the case of TM polarization, an originally focusing (defocusing)
material nonlinearity may become effectively defocusing (focusing). This occurs
due to the geometric phase of the carried eigenmode when the surface impedance
encircles the exceptional point. In its turn, the change of the effective nonlinearity
ensures the existence of dark (bright) solitons in spite of focusing (defocusing)
Kerr nonlinearity of the core. The existence of an exceptional point can also
result in anomalous enhancement of the effective nonlinearity. In terms of practical
applications, the nonlinearity of the reported waveguide can be manipulated by
controlling the properties of the absorbing cladding.
article_number: '033905'
article_processing_charge: No
arxiv: 1
author:
- first_name: Bikashkali
full_name: Midya, Bikashkali
id: 456187FC-F248-11E8-B48F-1D18A9856A87
last_name: Midya
- first_name: Vladimir
full_name: Konotop, Vladimir
last_name: Konotop
citation:
ama: 'Midya B, Konotop V. Waveguides with absorbing boundaries: Nonlinearity controlled
by an exceptional point and solitons. Physical Review Letters. 2017;119(3).
doi:10.1103/PhysRevLett.119.033905'
apa: 'Midya, B., & Konotop, V. (2017). Waveguides with absorbing boundaries:
Nonlinearity controlled by an exceptional point and solitons. Physical Review
Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.119.033905'
chicago: 'Midya, Bikashkali, and Vladimir Konotop. “Waveguides with Absorbing Boundaries:
Nonlinearity Controlled by an Exceptional Point and Solitons.” Physical Review
Letters. American Physical Society, 2017. https://doi.org/10.1103/PhysRevLett.119.033905.'
ieee: 'B. Midya and V. Konotop, “Waveguides with absorbing boundaries: Nonlinearity
controlled by an exceptional point and solitons,” Physical Review Letters,
vol. 119, no. 3. American Physical Society, 2017.'
ista: 'Midya B, Konotop V. 2017. Waveguides with absorbing boundaries: Nonlinearity
controlled by an exceptional point and solitons. Physical Review Letters. 119(3),
033905.'
mla: 'Midya, Bikashkali, and Vladimir Konotop. “Waveguides with Absorbing Boundaries:
Nonlinearity Controlled by an Exceptional Point and Solitons.” Physical Review
Letters, vol. 119, no. 3, 033905, American Physical Society, 2017, doi:10.1103/PhysRevLett.119.033905.'
short: B. Midya, V. Konotop, Physical Review Letters 119 (2017).
corr_author: '1'
date_created: 2018-12-11T11:49:18Z
date_published: 2017-07-18T00:00:00Z
date_updated: 2025-06-04T08:20:23Z
day: '18'
department:
- _id: MiLe
doi: 10.1103/PhysRevLett.119.033905
ec_funded: 1
external_id:
arxiv:
- '1706.04085 '
isi:
- '000405718200012'
intvolume: ' 119'
isi: 1
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: 'https://arxiv.org/abs/1706.04085 '
month: '07'
oa: 1
oa_version: Submitted Version
project:
- _id: 25681D80-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '291734'
name: International IST Postdoc Fellowship Programme
publication: Physical Review Letters
publication_identifier:
issn:
- 0031-9007
publication_status: published
publisher: American Physical Society
publist_id: '6481'
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Waveguides with absorbing boundaries: Nonlinearity controlled by an exceptional
point and solitons'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 119
year: '2017'
...
---
_id: '941'
abstract:
- lang: eng
text: 'Recently there has been a proliferation of automated program repair (APR)
techniques, targeting various programming languages. Such techniques can be generally
classified into two families: syntactic- and semantics-based. Semantics-based
APR, on which we focus, typically uses symbolic execution to infer semantic constraints
and then program synthesis to construct repairs conforming to them. While syntactic-based
APR techniques have been shown successful on bugs in real-world programs written
in both C and Java, semantics-based APR techniques mostly target C programs. This
leaves empirical comparisons of the APR families not fully explored, and developers
without a Java-based semantics APR technique. We present JFix, a semantics-based
APR framework that targets Java, and an associated Eclipse plugin. JFix is implemented
atop Symbolic PathFinder, a well-known symbolic execution engine for Java programs.
It extends one particular APR technique (Angelix), and is designed to be sufficiently
generic to support a variety of such techniques. We demonstrate that semantics-based
APR can indeed efficiently and effectively repair a variety of classes of bugs
in large real-world Java programs. This supports our claim that the framework
can both support developers seeking semantics-based repair of bugs in Java programs,
as well as enable larger scale empirical studies comparing syntactic- and semantics-based
APR targeting Java. The demonstration of our tool is available via the project
website at: https://xuanbachle.github.io/semanticsrepair/ '
acknowledgement: We thank Vu Le (Microsoft Research, Redmond), and anonymous reviewers
for their comments. Duc-Hiep Chu was supported in part by the Austrian Science Fund
(FWF) under grants S11402-N23 (RiSE/SHiNE) and Z211-N23 (Wittgenstein Award).
article_processing_charge: No
author:
- first_name: Xuan
full_name: Le, Xuan
last_name: Le
- first_name: Duc Hiep
full_name: Chu, Duc Hiep
id: 3598E630-F248-11E8-B48F-1D18A9856A87
last_name: Chu
- first_name: David
full_name: Lo, David
last_name: Lo
- first_name: Claire
full_name: Le Goues, Claire
last_name: Le Goues
- first_name: Willem
full_name: Visser, Willem
last_name: Visser
citation:
ama: 'Le X, Chu DH, Lo D, Le Goues C, Visser W. JFIX: Semantics-based repair of
Java programs via symbolic PathFinder. In: Proceedings of the 26th ACM SIGSOFT
International Symposium on Software Testing and Analysis. ACM; 2017:376-379.
doi:10.1145/3092703.3098225'
apa: 'Le, X., Chu, D. H., Lo, D., Le Goues, C., & Visser, W. (2017). JFIX: Semantics-based
repair of Java programs via symbolic PathFinder. In Proceedings of the 26th
ACM SIGSOFT International Symposium on Software Testing and Analysis (pp.
376–379). Santa Barbara, CA, United States: ACM. https://doi.org/10.1145/3092703.3098225'
chicago: 'Le, Xuan, Duc Hiep Chu, David Lo, Claire Le Goues, and Willem Visser.
“JFIX: Semantics-Based Repair of Java Programs via Symbolic PathFinder.” In Proceedings
of the 26th ACM SIGSOFT International Symposium on Software Testing and Analysis,
376–79. ACM, 2017. https://doi.org/10.1145/3092703.3098225.'
ieee: 'X. Le, D. H. Chu, D. Lo, C. Le Goues, and W. Visser, “JFIX: Semantics-based
repair of Java programs via symbolic PathFinder,” in Proceedings of the 26th
ACM SIGSOFT International Symposium on Software Testing and Analysis, Santa
Barbara, CA, United States, 2017, pp. 376–379.'
ista: 'Le X, Chu DH, Lo D, Le Goues C, Visser W. 2017. JFIX: Semantics-based repair
of Java programs via symbolic PathFinder. Proceedings of the 26th ACM SIGSOFT
International Symposium on Software Testing and Analysis. ISSTA: International
Symposium on Software Testing and Analysis, 376–379.'
mla: 'Le, Xuan, et al. “JFIX: Semantics-Based Repair of Java Programs via Symbolic
PathFinder.” Proceedings of the 26th ACM SIGSOFT International Symposium on
Software Testing and Analysis, ACM, 2017, pp. 376–79, doi:10.1145/3092703.3098225.'
short: X. Le, D.H. Chu, D. Lo, C. Le Goues, W. Visser, in:, Proceedings of the 26th
ACM SIGSOFT International Symposium on Software Testing and Analysis, ACM, 2017,
pp. 376–379.
conference:
end_date: 2017-07-14
location: Santa Barbara, CA, United States
name: 'ISSTA: International Symposium on Software Testing and Analysis'
start_date: 2017-07-10
corr_author: '1'
date_created: 2018-12-11T11:49:19Z
date_published: 2017-07-10T00:00:00Z
date_updated: 2026-06-18T19:51:19Z
day: '10'
ddc:
- '000'
department:
- _id: ToHe
doi: 10.1145/3092703.3098225
external_id:
isi:
- '000462903600038'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://core.ac.uk/download/pdf/111759662.pdf
month: '07'
oa: 1
oa_version: Published Version
page: '376 - 379 '
project:
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S 11407_N23
name: Rigorous Systems Engineering
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: Z211
name: Formal methods for the design and analysis of complex systems
publication: Proceedings of the 26th ACM SIGSOFT International Symposium on Software
Testing and Analysis
publication_status: published
publisher: ACM
publist_id: '6478'
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'JFIX: Semantics-based repair of Java programs via symbolic PathFinder'
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2017'
...
---
_id: '942'
abstract:
- lang: eng
text: 'A notable class of techniques for automatic program repair is known as semantics-based.
Such techniques, e.g., Angelix, infer semantic specifications via symbolic execution,
and then use program synthesis to construct new code that satisfies those inferred
specifications. However, the obtained specifications are naturally incomplete,
leaving the synthesis engine with a difficult task of synthesizing a general solution
from a sparse space of many possible solutions that are consistent with the provided
specifications but that do not necessarily generalize. We present S3, a new repair
synthesis engine that leverages programming-by-examples methodology to synthesize
high-quality bug repairs. The novelty in S3 that allows it to tackle the sparse
search space to create more general repairs is three-fold: (1) A systematic way
to customize and constrain the syntactic search space via a domain-specific language,
(2) An efficient enumeration-based search strategy over the constrained search
space, and (3) A number of ranking features based on measures of the syntactic
and semantic distances between candidate solutions and the original buggy program.
We compare S3’s repair effectiveness with state-of-the-art synthesis engines Angelix,
Enumerative, and CVC4. S3 can successfully and correctly fix at least three times
more bugs than the best baseline on datasets of 52 bugs in small programs, and
100 bugs in real-world large programs. '
article_processing_charge: No
author:
- first_name: Xuan
full_name: Le, Xuan
last_name: Le
- first_name: Duc Hiep
full_name: Chu, Duc Hiep
id: 3598E630-F248-11E8-B48F-1D18A9856A87
last_name: Chu
- first_name: David
full_name: Lo, David
last_name: Lo
- first_name: Claire
full_name: Le Goues, Claire
last_name: Le Goues
- first_name: Willem
full_name: Visser, Willem
last_name: Visser
citation:
ama: 'Le X, Chu DH, Lo D, Le Goues C, Visser W. S3: Syntax- and semantic-guided
repair synthesis via programming by examples. In: Vol F130154. ACM; 2017:593-604.
doi:10.1145/3106237.3106309'
apa: 'Le, X., Chu, D. H., Lo, D., Le Goues, C., & Visser, W. (2017). S3: Syntax-
and semantic-guided repair synthesis via programming by examples (Vol. F130154,
pp. 593–604). Presented at the FSE: Foundations of Software Engineering, Paderborn,
Germany: ACM. https://doi.org/10.1145/3106237.3106309'
chicago: 'Le, Xuan, Duc Hiep Chu, David Lo, Claire Le Goues, and Willem Visser.
“S3: Syntax- and Semantic-Guided Repair Synthesis via Programming by Examples,”
F130154:593–604. ACM, 2017. https://doi.org/10.1145/3106237.3106309.'
ieee: 'X. Le, D. H. Chu, D. Lo, C. Le Goues, and W. Visser, “S3: Syntax- and semantic-guided
repair synthesis via programming by examples,” presented at the FSE: Foundations
of Software Engineering, Paderborn, Germany, 2017, vol. F130154, pp. 593–604.'
ista: 'Le X, Chu DH, Lo D, Le Goues C, Visser W. 2017. S3: Syntax- and semantic-guided
repair synthesis via programming by examples. FSE: Foundations of Software Engineering
vol. F130154, 593–604.'
mla: 'Le, Xuan, et al. S3: Syntax- and Semantic-Guided Repair Synthesis via Programming
by Examples. Vol. F130154, ACM, 2017, pp. 593–604, doi:10.1145/3106237.3106309.'
short: X. Le, D.H. Chu, D. Lo, C. Le Goues, W. Visser, in:, ACM, 2017, pp. 593–604.
conference:
end_date: 2017-09-08
location: Paderborn, Germany
name: 'FSE: Foundations of Software Engineering'
start_date: 2017-09-04
date_created: 2018-12-11T11:49:19Z
date_published: 2017-09-01T00:00:00Z
date_updated: 2025-04-15T06:25:57Z
day: '01'
department:
- _id: ToHe
doi: 10.1145/3106237.3106309
external_id:
isi:
- '000414279300055'
isi: 1
language:
- iso: eng
month: '09'
oa_version: None
page: 593 - 604
project:
- _id: 25F5A88A-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S11402-N23
name: Moderne Concurrency Paradigms
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: Z211
name: Formal methods for the design and analysis of complex systems
publication_identifier:
isbn:
- 978-145035105-8
publication_status: published
publisher: ACM
publist_id: '6477'
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'S3: Syntax- and semantic-guided repair synthesis via programming by examples'
type: conference
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: F130154
year: '2017'
...
---
_id: '943'
abstract:
- lang: eng
text: Like many developing tissues, the vertebrate neural tube is patterned by antiparallel
morphogen gradients. To understand how these inputs are interpreted, we measured
morphogen signaling and target gene expression in mouse embryos and chick ex vivo
assays. From these data, we derived and validated a characteristic decoding map
that relates morphogen input to the positional identity of neural progenitors.
Analysis of the observed responses indicates that the underlying interpretation
strategy minimizes patterning errors in response to the joint input of noisy opposing
gradients. We reverse-engineered a transcriptional network that provides a mechanistic
basis for the observed cell fate decisions and accounts for the precision and
dynamics of pattern formation. Together, our data link opposing gradient dynamics
in a growing tissue to precise pattern formation.
article_processing_charge: No
author:
- first_name: Marcin P
full_name: Zagórski, Marcin P
id: 343DA0DC-F248-11E8-B48F-1D18A9856A87
last_name: Zagórski
orcid: 0000-0001-7896-7762
- first_name: Yoji
full_name: Tabata, Yoji
last_name: Tabata
- first_name: Nathalie
full_name: Brandenberg, Nathalie
last_name: Brandenberg
- first_name: Matthias
full_name: Lutolf, Matthias
last_name: Lutolf
- first_name: Gasper
full_name: Tkacik, Gasper
id: 3D494DCA-F248-11E8-B48F-1D18A9856A87
last_name: Tkacik
orcid: 0000-0002-6699-1455
- first_name: Tobias
full_name: Bollenbach, Tobias
last_name: Bollenbach
- first_name: James
full_name: Briscoe, James
last_name: Briscoe
- first_name: Anna
full_name: Kicheva, Anna
id: 3959A2A0-F248-11E8-B48F-1D18A9856A87
last_name: Kicheva
orcid: 0000-0003-4509-4998
citation:
ama: Zagórski MP, Tabata Y, Brandenberg N, et al. Decoding of position in the developing
neural tube from antiparallel morphogen gradients. Science. 2017;356(6345):1379-1383.
doi:10.1126/science.aam5887
apa: Zagórski, M. P., Tabata, Y., Brandenberg, N., Lutolf, M., Tkačik, G., Bollenbach,
T., … Kicheva, A. (2017). Decoding of position in the developing neural tube from
antiparallel morphogen gradients. Science. American Association for the
Advancement of Science. https://doi.org/10.1126/science.aam5887
chicago: Zagórski, Marcin P, Yoji Tabata, Nathalie Brandenberg, Matthias Lutolf,
Gašper Tkačik, Tobias Bollenbach, James Briscoe, and Anna Kicheva. “Decoding of
Position in the Developing Neural Tube from Antiparallel Morphogen Gradients.”
Science. American Association for the Advancement of Science, 2017. https://doi.org/10.1126/science.aam5887.
ieee: M. P. Zagórski et al., “Decoding of position in the developing neural
tube from antiparallel morphogen gradients,” Science, vol. 356, no. 6345.
American Association for the Advancement of Science, pp. 1379–1383, 2017.
ista: Zagórski MP, Tabata Y, Brandenberg N, Lutolf M, Tkačik G, Bollenbach T, Briscoe
J, Kicheva A. 2017. Decoding of position in the developing neural tube from antiparallel
morphogen gradients. Science. 356(6345), 1379–1383.
mla: Zagórski, Marcin P., et al. “Decoding of Position in the Developing Neural
Tube from Antiparallel Morphogen Gradients.” Science, vol. 356, no. 6345,
American Association for the Advancement of Science, 2017, pp. 1379–83, doi:10.1126/science.aam5887.
short: M.P. Zagórski, Y. Tabata, N. Brandenberg, M. Lutolf, G. Tkačik, T. Bollenbach,
J. Briscoe, A. Kicheva, Science 356 (2017) 1379–1383.
corr_author: '1'
date_created: 2018-12-11T11:49:20Z
date_published: 2017-06-30T00:00:00Z
date_updated: 2025-07-10T12:01:45Z
day: '30'
department:
- _id: AnKi
- _id: GaTk
doi: 10.1126/science.aam5887
ec_funded: 1
external_id:
isi:
- '000404351500036'
pmid:
- '28663499'
intvolume: ' 356'
isi: 1
issue: '6345'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5568706/
month: '06'
oa: 1
oa_version: Submitted Version
page: 1379 - 1383
pmid: 1
project:
- _id: 254E9036-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P28844-B27
name: Biophysics of information processing in gene regulation
- _id: B6FC0238-B512-11E9-945C-1524E6697425
call_identifier: H2020
grant_number: '680037'
name: Coordination of Patterning And Growth In the Spinal Cord
- _id: 25681D80-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '291734'
name: International IST Postdoc Fellowship Programme
- _id: 2524F500-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '201439'
name: Developing High-Throughput Bioassays for Human Cancers in Zebrafish
publication: Science
publication_identifier:
issn:
- 0036-8075
publication_status: published
publisher: American Association for the Advancement of Science
publist_id: '6474'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Decoding of position in the developing neural tube from antiparallel morphogen
gradients
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 356
year: '2017'
...
---
_id: '944'
abstract:
- lang: eng
text: The concerted production of neurons and glia by neural stem cells (NSCs) is
essential for neural circuit assembly. In the developing cerebral cortex, radial
glia progenitors (RGPs) generate nearly all neocortical neurons and certain glia
lineages. RGP proliferation behavior shows a high degree of non-stochasticity,
thus a deterministic characteristic of neuron and glia production. However, the
cellular and molecular mechanisms controlling RGP behavior and proliferation dynamics
in neurogenesis and glia generation remain unknown. By using mosaic analysis with
double markers (MADM)-based genetic paradigms enabling the sparse and global knockout
with unprecedented single-cell resolution, we identified Lgl1 as a critical regulatory
component. We uncover Lgl1-dependent tissue-wide community effects required for
embryonic cortical neurogenesis and novel cell-autonomous Lgl1 functions controlling
RGP-mediated glia genesis and postnatal NSC behavior. These results suggest that
NSC-mediated neuron and glia production is tightly regulated through the concerted
interplay of sequential Lgl1-dependent global and cell intrinsic mechanisms.
acknowledged_ssus:
- _id: Bio
- _id: PreCl
article_processing_charge: No
author:
- first_name: Robert J
full_name: Beattie, Robert J
id: 2E26DF60-F248-11E8-B48F-1D18A9856A87
last_name: Beattie
orcid: 0000-0002-8483-8753
- first_name: Maria P
full_name: Postiglione, Maria P
id: 2C67902A-F248-11E8-B48F-1D18A9856A87
last_name: Postiglione
- first_name: Laura
full_name: Burnett, Laura
id: 3B717F68-F248-11E8-B48F-1D18A9856A87
last_name: Burnett
orcid: 0000-0002-8937-410X
- first_name: Susanne
full_name: Laukoter, Susanne
id: 2D6B7A9A-F248-11E8-B48F-1D18A9856A87
last_name: Laukoter
orcid: 0000-0002-7903-3010
- first_name: Carmen
full_name: Streicher, Carmen
id: 36BCB99C-F248-11E8-B48F-1D18A9856A87
last_name: Streicher
- first_name: Florian
full_name: Pauler, Florian
id: 48EA0138-F248-11E8-B48F-1D18A9856A87
last_name: Pauler
orcid: 0000-0002-7462-0048
- first_name: Guanxi
full_name: Xiao, Guanxi
last_name: Xiao
- first_name: Olga
full_name: Klezovitch, Olga
last_name: Klezovitch
- first_name: Valeri
full_name: Vasioukhin, Valeri
last_name: Vasioukhin
- first_name: Troy
full_name: Ghashghaei, Troy
last_name: Ghashghaei
- first_name: Simon
full_name: Hippenmeyer, Simon
id: 37B36620-F248-11E8-B48F-1D18A9856A87
last_name: Hippenmeyer
orcid: 0000-0003-2279-1061
citation:
ama: Beattie RJ, Postiglione MP, Burnett L, et al. Mosaic analysis with double markers
reveals distinct sequential functions of Lgl1 in neural stem cells. Neuron.
2017;94(3):517-533.e3. doi:10.1016/j.neuron.2017.04.012
apa: Beattie, R. J., Postiglione, M. P., Burnett, L., Laukoter, S., Streicher, C.,
Pauler, F., … Hippenmeyer, S. (2017). Mosaic analysis with double markers reveals
distinct sequential functions of Lgl1 in neural stem cells. Neuron. Cell
Press. https://doi.org/10.1016/j.neuron.2017.04.012
chicago: Beattie, Robert J, Maria P Postiglione, Laura Burnett, Susanne Laukoter,
Carmen Streicher, Florian Pauler, Guanxi Xiao, et al. “Mosaic Analysis with Double
Markers Reveals Distinct Sequential Functions of Lgl1 in Neural Stem Cells.” Neuron.
Cell Press, 2017. https://doi.org/10.1016/j.neuron.2017.04.012.
ieee: R. J. Beattie et al., “Mosaic analysis with double markers reveals
distinct sequential functions of Lgl1 in neural stem cells,” Neuron, vol.
94, no. 3. Cell Press, p. 517–533.e3, 2017.
ista: Beattie RJ, Postiglione MP, Burnett L, Laukoter S, Streicher C, Pauler F,
Xiao G, Klezovitch O, Vasioukhin V, Ghashghaei T, Hippenmeyer S. 2017. Mosaic
analysis with double markers reveals distinct sequential functions of Lgl1 in
neural stem cells. Neuron. 94(3), 517–533.e3.
mla: Beattie, Robert J., et al. “Mosaic Analysis with Double Markers Reveals Distinct
Sequential Functions of Lgl1 in Neural Stem Cells.” Neuron, vol. 94, no.
3, Cell Press, 2017, p. 517–533.e3, doi:10.1016/j.neuron.2017.04.012.
short: R.J. Beattie, M.P. Postiglione, L. Burnett, S. Laukoter, C. Streicher, F.
Pauler, G. Xiao, O. Klezovitch, V. Vasioukhin, T. Ghashghaei, S. Hippenmeyer,
Neuron 94 (2017) 517–533.e3.
corr_author: '1'
date_created: 2018-12-11T11:49:20Z
date_published: 2017-05-03T00:00:00Z
date_updated: 2026-04-16T09:57:27Z
day: '03'
department:
- _id: SiHi
- _id: MaJö
doi: 10.1016/j.neuron.2017.04.012
ec_funded: 1
external_id:
isi:
- '000400466700011'
intvolume: ' 94'
isi: 1
issue: '3'
language:
- iso: eng
month: '05'
oa_version: None
page: 517 - 533.e3
project:
- _id: 25D61E48-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '618444'
name: Molecular Mechanisms of Cerebral Cortex Development
- _id: 25D7962E-B435-11E9-9278-68D0E5697425
grant_number: RGP0053/2014
name: Quantitative Structure-Function Analysis of Cerebral Cortex Assembly at Clonal
Level
publication: Neuron
publication_identifier:
issn:
- 0896-6273
publication_status: published
publisher: Cell Press
publist_id: '6473'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Mosaic analysis with double markers reveals distinct sequential functions of
Lgl1 in neural stem cells
type: journal_article
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
volume: 94
year: '2017'
...
---
_id: '9445'
abstract:
- lang: eng
text: Cytosine methylation regulates essential genome functions across eukaryotes,
but the fundamental question of whether nucleosomal or naked DNA is the preferred
substrate of plant and animal methyltransferases remains unresolved. Here, we
show that genetic inactivation of a single DDM1/Lsh family nucleosome remodeler
biases methylation toward inter-nucleosomal linker DNA in Arabidopsis thaliana
and mouse. We find that DDM1 enables methylation of DNA bound to the nucleosome,
suggesting that nucleosome-free DNA is the preferred substrate of eukaryotic methyltransferases
in vivo. Furthermore, we show that simultaneous mutation of DDM1 and linker histone
H1 in Arabidopsis reproduces the strong linker-specific methylation patterns of
species that diverged from flowering plants and animals over a billion years ago.
Our results indicate that in the absence of remodeling, nucleosomes are strong
barriers to DNA methyltransferases. Linker-specific methylation can evolve simply
by breaking the connection between nucleosome remodeling and DNA methylation.
article_number: e30674
article_processing_charge: No
article_type: original
author:
- first_name: David B
full_name: Lyons, David B
last_name: Lyons
- first_name: Daniel
full_name: Zilberman, Daniel
id: 6973db13-dd5f-11ea-814e-b3e5455e9ed1
last_name: Zilberman
orcid: 0000-0002-0123-8649
citation:
ama: Lyons DB, Zilberman D. DDM1 and Lsh remodelers allow methylation of DNA wrapped
in nucleosomes. eLife. 2017;6. doi:10.7554/elife.30674
apa: Lyons, D. B., & Zilberman, D. (2017). DDM1 and Lsh remodelers allow methylation
of DNA wrapped in nucleosomes. ELife. eLife Sciences Publications. https://doi.org/10.7554/elife.30674
chicago: Lyons, David B, and Daniel Zilberman. “DDM1 and Lsh Remodelers Allow Methylation
of DNA Wrapped in Nucleosomes.” ELife. eLife Sciences Publications, 2017.
https://doi.org/10.7554/elife.30674.
ieee: D. B. Lyons and D. Zilberman, “DDM1 and Lsh remodelers allow methylation of
DNA wrapped in nucleosomes,” eLife, vol. 6. eLife Sciences Publications,
2017.
ista: Lyons DB, Zilberman D. 2017. DDM1 and Lsh remodelers allow methylation of
DNA wrapped in nucleosomes. eLife. 6, e30674.
mla: Lyons, David B., and Daniel Zilberman. “DDM1 and Lsh Remodelers Allow Methylation
of DNA Wrapped in Nucleosomes.” ELife, vol. 6, e30674, eLife Sciences Publications,
2017, doi:10.7554/elife.30674.
short: D.B. Lyons, D. Zilberman, ELife 6 (2017).
date_created: 2021-06-02T14:28:58Z
date_published: 2017-11-15T00:00:00Z
date_updated: 2021-12-14T07:54:36Z
day: '15'
ddc:
- '570'
department:
- _id: DaZi
doi: 10.7554/elife.30674
extern: '1'
external_id:
pmid:
- '29140247'
file:
- access_level: open_access
checksum: 4cfcdd67511ae4aed3d993550e46e146
content_type: application/pdf
creator: cziletti
date_created: 2021-06-02T14:33:36Z
date_updated: 2021-06-02T14:33:36Z
file_id: '9446'
file_name: 2017_eLife_Lyons.pdf
file_size: 1603102
relation: main_file
success: 1
file_date_updated: 2021-06-02T14:33:36Z
has_accepted_license: '1'
intvolume: ' 6'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
pmid: 1
publication: eLife
publication_identifier:
eissn:
- 2050-084X
publication_status: published
publisher: eLife Sciences Publications
quality_controlled: '1'
scopus_import: '1'
status: public
title: DDM1 and Lsh remodelers allow methylation of DNA wrapped in nucleosomes
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: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 6
year: '2017'
...
---
_id: '945'
abstract:
- lang: eng
text: While chromosome-wide dosage compensation of the X chromosome has been found
in many species, studies in ZW clades have indicated that compensation of the
Z is more localized and/or incomplete. In the ZW Lepidoptera, some species show
complete compensation of the Z chromosome, while others lack full equalization,
but what drives these inconsistencies is unclear. Here, we compare patterns of
male and female gene expression on the Z chromosome of two closely related butterfly
species, Papilio xuthus and Papilio machaon, and in multiple tissues of two moths
species, Plodia interpunctella and Bombyx mori, which were previously found to
differ in the extent to which they equalize Z-linked gene expression between the
sexes. We find that, while some species and tissues seem to have incomplete dosage
compensation, this is in fact due to the accumulation of male-biased genes and
the depletion of female-biased genes on the Z chromosome. Once this is accounted
for, the Z chromosome is fully compensated in all four species, through the up-regulation
of Z expression in females and in some cases additional down-regulation in males.
We further find that both sex-biased genes and Z-linked genes have increased rates
of expression divergence in this clade, and that this can lead to fast shifts
in patterns of gene expression even between closely related species. Taken together,
these results show that the uneven distribution of sex-biased genes on sex chromosomes
can confound conclusions about dosage compensation and that Z chromosome-wide
dosage compensation is not only possible but ubiquitous among Lepidoptera.
article_processing_charge: Yes (in subscription journal)
author:
- first_name: Ann K
full_name: Huylmans, Ann K
id: 4C0A3874-F248-11E8-B48F-1D18A9856A87
last_name: Huylmans
orcid: 0000-0001-8871-4961
- first_name: Ariana
full_name: Macon, Ariana
id: 2A0848E2-F248-11E8-B48F-1D18A9856A87
last_name: Macon
- first_name: Beatriz
full_name: Vicoso, Beatriz
id: 49E1C5C6-F248-11E8-B48F-1D18A9856A87
last_name: Vicoso
orcid: 0000-0002-4579-8306
citation:
ama: Huylmans AK, Macon A, Vicoso B. Global dosage compensation is ubiquitous in
Lepidoptera, but counteracted by the masculinization of the Z chromosome. Molecular
Biology and Evolution. 2017;34(10):2637-2649. doi:10.1093/molbev/msx190
apa: Huylmans, A. K., Macon, A., & Vicoso, B. (2017). Global dosage compensation
is ubiquitous in Lepidoptera, but counteracted by the masculinization of the Z
chromosome. Molecular Biology and Evolution. Oxford University Press. https://doi.org/10.1093/molbev/msx190
chicago: Huylmans, Ann K, Ariana Macon, and Beatriz Vicoso. “Global Dosage Compensation
Is Ubiquitous in Lepidoptera, but Counteracted by the Masculinization of the Z
Chromosome.” Molecular Biology and Evolution. Oxford University Press,
2017. https://doi.org/10.1093/molbev/msx190.
ieee: A. K. Huylmans, A. Macon, and B. Vicoso, “Global dosage compensation is ubiquitous
in Lepidoptera, but counteracted by the masculinization of the Z chromosome,”
Molecular Biology and Evolution, vol. 34, no. 10. Oxford University Press,
pp. 2637–2649, 2017.
ista: Huylmans AK, Macon A, Vicoso B. 2017. Global dosage compensation is ubiquitous
in Lepidoptera, but counteracted by the masculinization of the Z chromosome. Molecular
Biology and Evolution. 34(10), 2637–2649.
mla: Huylmans, Ann K., et al. “Global Dosage Compensation Is Ubiquitous in Lepidoptera,
but Counteracted by the Masculinization of the Z Chromosome.” Molecular Biology
and Evolution, vol. 34, no. 10, Oxford University Press, 2017, pp. 2637–49,
doi:10.1093/molbev/msx190.
short: A.K. Huylmans, A. Macon, B. Vicoso, Molecular Biology and Evolution 34 (2017)
2637–2649.
date_created: 2018-12-11T11:49:20Z
date_published: 2017-07-06T00:00:00Z
date_updated: 2026-04-16T09:58:19Z
day: '06'
ddc:
- '570'
- '576'
department:
- _id: BeVi
doi: 10.1093/molbev/msx190
external_id:
isi:
- '000411814800016'
file:
- access_level: open_access
checksum: 009fd68043211d645ceb9d1de28274f2
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:10:23Z
date_updated: 2020-07-14T12:48:15Z
file_id: '4810'
file_name: IST-2017-848-v1+1_2017_Vicoso_GlobalDosage.pdf
file_size: 462863
relation: main_file
file_date_updated: 2020-07-14T12:48:15Z
has_accepted_license: '1'
intvolume: ' 34'
isi: 1
issue: '10'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: 2637 - 2649
project:
- _id: 250ED89C-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P28842-B22
name: Sex chromosome evolution under male- and female- heterogamety
publication: Molecular Biology and Evolution
publication_identifier:
issn:
- 0737-4038
publication_status: published
publisher: Oxford University Press
publist_id: '6472'
pubrep_id: '848'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Global dosage compensation is ubiquitous in Lepidoptera, but counteracted by
the masculinization of the Z chromosome
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: '2017'
...
---
_id: '946'
abstract:
- lang: eng
text: Roots navigate through soil integrating environmental signals to orient their
growth. The Arabidopsis root is a widely used model for developmental, physiological
and cell biological studies. Live imaging greatly aids these efforts, but the
horizontal sample position and continuous root tip displacement present significant
difficulties. Here, we develop a confocal microscope setup for vertical sample
mounting and integrated directional illumination. We present TipTracker – a custom
software for automatic tracking of diverse moving objects usable on various microscope
setups. Combined, this enables observation of root tips growing along the natural
gravity vector over prolonged periods of time, as well as the ability to induce
rapid gravity or light stimulation. We also track migrating cells in the developing
zebrafish embryo, demonstrating the utility of this system in the acquisition
of high-resolution data sets of dynamic samples. We provide detailed descriptions
of the tools enabling the easy implementation on other microscopes.
acknowledged_ssus:
- _id: M-Shop
- _id: Bio
acknowledgement: "Funding: Marie Curie Actions (FP7/2007-2013 no 291734) to Daniel
von Wangenheim; Austrian Science Fund (M 2128-B21) to Matyáš Fendrych; Austrian
Science Fund (FWF01_I1774S) to Eva Benková; European Research Council (FP7/2007-2013
no 282300) to Jiří Friml. \r\nThe authors are grateful to the Miba Machine Shop
at IST Austria for their contribution to the microscope setup and to Yvonne Kemper
for reading, understanding and correcting the manuscript.\r\n#BioimagingFacility"
article_number: e26792
article_processing_charge: Yes
author:
- first_name: Daniel
full_name: Von Wangenheim, Daniel
id: 49E91952-F248-11E8-B48F-1D18A9856A87
last_name: Von Wangenheim
orcid: 0000-0002-6862-1247
- first_name: Robert
full_name: Hauschild, Robert
id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
last_name: Hauschild
orcid: 0000-0001-9843-3522
- first_name: Matyas
full_name: Fendrych, Matyas
id: 43905548-F248-11E8-B48F-1D18A9856A87
last_name: Fendrych
orcid: 0000-0002-9767-8699
- first_name: Vanessa
full_name: Barone, Vanessa
id: 419EECCC-F248-11E8-B48F-1D18A9856A87
last_name: Barone
orcid: 0000-0003-2676-3367
- first_name: Eva
full_name: Benková, Eva
id: 38F4F166-F248-11E8-B48F-1D18A9856A87
last_name: Benková
orcid: 0000-0002-8510-9739
- first_name: Jirí
full_name: Friml, Jirí
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: von Wangenheim D, Hauschild R, Fendrych M, Barone V, Benková E, Friml J. Live
tracking of moving samples in confocal microscopy for vertically grown roots.
eLife. 2017;6. doi:10.7554/eLife.26792
apa: von Wangenheim, D., Hauschild, R., Fendrych, M., Barone, V., Benková, E., &
Friml, J. (2017). Live tracking of moving samples in confocal microscopy for vertically
grown roots. ELife. eLife Sciences Publications. https://doi.org/10.7554/eLife.26792
chicago: Wangenheim, Daniel von, Robert Hauschild, Matyas Fendrych, Vanessa Barone,
Eva Benková, and Jiří Friml. “Live Tracking of Moving Samples in Confocal Microscopy
for Vertically Grown Roots.” ELife. eLife Sciences Publications, 2017.
https://doi.org/10.7554/eLife.26792.
ieee: D. von Wangenheim, R. Hauschild, M. Fendrych, V. Barone, E. Benková, and J.
Friml, “Live tracking of moving samples in confocal microscopy for vertically
grown roots,” eLife, vol. 6. eLife Sciences Publications, 2017.
ista: von Wangenheim D, Hauschild R, Fendrych M, Barone V, Benková E, Friml J. 2017.
Live tracking of moving samples in confocal microscopy for vertically grown roots.
eLife. 6, e26792.
mla: von Wangenheim, Daniel, et al. “Live Tracking of Moving Samples in Confocal
Microscopy for Vertically Grown Roots.” ELife, vol. 6, e26792, eLife Sciences
Publications, 2017, doi:10.7554/eLife.26792.
short: D. von Wangenheim, R. Hauschild, M. Fendrych, V. Barone, E. Benková, J. Friml,
ELife 6 (2017).
date_created: 2018-12-11T11:49:21Z
date_published: 2017-06-19T00:00:00Z
date_updated: 2025-04-15T06:37:26Z
day: '19'
ddc:
- '570'
department:
- _id: JiFr
- _id: Bio
- _id: CaHe
- _id: EvBe
doi: 10.7554/eLife.26792
ec_funded: 1
external_id:
isi:
- '000404728300001'
file:
- access_level: open_access
checksum: 9af3398cb0d81f99d79016a616df22e9
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:17:57Z
date_updated: 2020-07-14T12:48:15Z
file_id: '5315'
file_name: IST-2017-847-v1+1_elife-26792-v2.pdf
file_size: 19581847
relation: main_file
file_date_updated: 2020-07-14T12:48:15Z
has_accepted_license: '1'
intvolume: ' 6'
isi: 1
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
project:
- _id: 25681D80-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '291734'
name: International IST Postdoc Fellowship Programme
- _id: 2572ED28-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: M02128
name: Molecular basis of root growth inhibition by auxin
- _id: 2542D156-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: I 1774-B16
name: Hormone cross-talk drives nutrient dependent plant development
- _id: 25716A02-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '282300'
name: Polarity and subcellular dynamics in plants
publication: eLife
publication_status: published
publisher: eLife Sciences Publications
publist_id: '6471'
pubrep_id: '847'
quality_controlled: '1'
related_material:
record:
- id: '5566'
relation: popular_science
status: public
scopus_import: '1'
status: public
title: Live tracking of moving samples in confocal microscopy for vertically grown
roots
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: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 6
year: '2017'
...
---
_id: '950'
abstract:
- lang: eng
text: "Two-player games on graphs are widely studied in formal methods as they model
the interaction between a system and its environment. The game is played by moving
a token throughout a graph to produce an infinite path. There are several common
modes to determine how the players move the token through the graph; e.g., in
turn-based games the players alternate turns in moving the token. We study the
bidding mode of moving the token, which, to the best of our knowledge, has never
been studied in infinite-duration games. Both players have separate budgets, which
sum up to $1$. In each turn, a bidding takes place. Both players submit bids simultaneously,
and a bid is legal if it does not exceed the available budget. The winner of the
bidding pays his bid to the other player and moves the token. For reachability
objectives, repeated bidding games have been studied and are called Richman games.
There, a central question is the existence and computation of threshold budgets;
namely, a value t\\in [0,1] such that if\\PO's budget exceeds $t$, he can win
the game, and if\\PT's budget exceeds 1-t, he can win the game. We focus on parity
games and mean-payoff games. We show the existence of threshold budgets in these
games, and reduce the problem of finding them to Richman games. We also determine
the strategy-complexity of an optimal strategy. Our most interesting result shows
that memoryless strategies suffice for mean-payoff bidding games. \r\n"
alternative_title:
- LIPIcs
article_number: '17'
arxiv: 1
author:
- first_name: Guy
full_name: Avni, Guy
id: 463C8BC2-F248-11E8-B48F-1D18A9856A87
last_name: Avni
orcid: 0000-0001-5588-8287
- first_name: Thomas A
full_name: Henzinger, Thomas A
id: 40876CD8-F248-11E8-B48F-1D18A9856A87
last_name: Henzinger
orcid: 0000−0002−2985−7724
- first_name: Ventsislav K
full_name: Chonev, Ventsislav K
id: 36CBE2E6-F248-11E8-B48F-1D18A9856A87
last_name: Chonev
citation:
ama: 'Avni G, Henzinger TA, Chonev VK. Infinite-duration bidding games. In: Vol
85. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2017. doi:10.4230/LIPIcs.CONCUR.2017.21'
apa: 'Avni, G., Henzinger, T. A., & Chonev, V. K. (2017). Infinite-duration
bidding games (Vol. 85). Presented at the CONCUR: Concurrency Theory, Berlin,
Germany: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.CONCUR.2017.21'
chicago: Avni, Guy, Thomas A Henzinger, and Ventsislav K Chonev. “Infinite-Duration
Bidding Games,” Vol. 85. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017.
https://doi.org/10.4230/LIPIcs.CONCUR.2017.21.
ieee: 'G. Avni, T. A. Henzinger, and V. K. Chonev, “Infinite-duration bidding games,”
presented at the CONCUR: Concurrency Theory, Berlin, Germany, 2017, vol. 85.'
ista: 'Avni G, Henzinger TA, Chonev VK. 2017. Infinite-duration bidding games. CONCUR:
Concurrency Theory, LIPIcs, vol. 85, 17.'
mla: Avni, Guy, et al. Infinite-Duration Bidding Games. Vol. 85, 17, Schloss
Dagstuhl - Leibniz-Zentrum für Informatik, 2017, doi:10.4230/LIPIcs.CONCUR.2017.21.
short: G. Avni, T.A. Henzinger, V.K. Chonev, in:, Schloss Dagstuhl - Leibniz-Zentrum
für Informatik, 2017.
conference:
end_date: 2017-09-07
location: Berlin, Germany
name: 'CONCUR: Concurrency Theory'
start_date: 2017-09-05
date_created: 2018-12-11T11:49:22Z
date_published: 2017-09-01T00:00:00Z
date_updated: 2025-07-10T11:53:48Z
day: '01'
ddc:
- '000'
department:
- _id: ToHe
- _id: KrCh
doi: 10.4230/LIPIcs.CONCUR.2017.21
external_id:
arxiv:
- '1705.01433'
file:
- access_level: open_access
checksum: 6d5cccf755207b91ccbef95d8275b013
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:18:00Z
date_updated: 2020-07-14T12:48:16Z
file_id: '5318'
file_name: IST-2017-844-v1+1_concur-cr.pdf
file_size: 335170
relation: main_file
file_date_updated: 2020-07-14T12:48:16Z
has_accepted_license: '1'
intvolume: ' 85'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
project:
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S 11407_N23
name: Rigorous Systems Engineering
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: Z211
name: Formal methods for the design and analysis of complex systems
publication_identifier:
issn:
- 1868-8969
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
publist_id: '6466'
pubrep_id: '844'
quality_controlled: '1'
related_material:
record:
- id: '6752'
relation: later_version
status: public
scopus_import: 1
status: public
title: Infinite-duration bidding games
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: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 85
year: '2017'
...
---
_id: '9506'
abstract:
- lang: eng
text: Methylation in the bodies of active genes is common in animals and vascular
plants. Evolutionary patterns indicate homeostatic functions for this type of
methylation.
article_number: '87'
article_processing_charge: No
author:
- first_name: Daniel
full_name: Zilberman, Daniel
id: 6973db13-dd5f-11ea-814e-b3e5455e9ed1
last_name: Zilberman
orcid: 0000-0002-0123-8649
citation:
ama: Zilberman D. An evolutionary case for functional gene body methylation in plants
and animals. Genome Biology. 2017;18(1). doi:10.1186/s13059-017-1230-2
apa: Zilberman, D. (2017). An evolutionary case for functional gene body methylation
in plants and animals. Genome Biology. Springer Nature. https://doi.org/10.1186/s13059-017-1230-2
chicago: Zilberman, Daniel. “An Evolutionary Case for Functional Gene Body Methylation
in Plants and Animals.” Genome Biology. Springer Nature, 2017. https://doi.org/10.1186/s13059-017-1230-2.
ieee: D. Zilberman, “An evolutionary case for functional gene body methylation in
plants and animals,” Genome Biology, vol. 18, no. 1. Springer Nature, 2017.
ista: Zilberman D. 2017. An evolutionary case for functional gene body methylation
in plants and animals. Genome Biology. 18(1), 87.
mla: Zilberman, Daniel. “An Evolutionary Case for Functional Gene Body Methylation
in Plants and Animals.” Genome Biology, vol. 18, no. 1, 87, Springer Nature,
2017, doi:10.1186/s13059-017-1230-2.
short: D. Zilberman, Genome Biology 18 (2017).
date_created: 2021-06-07T12:27:39Z
date_published: 2017-05-09T00:00:00Z
date_updated: 2021-12-14T07:55:02Z
day: '09'
ddc:
- '570'
department:
- _id: DaZi
doi: 10.1186/s13059-017-1230-2
extern: '1'
external_id:
pmid:
- '28486944'
file:
- access_level: open_access
checksum: 5a455ad914e7d225b1baa4ab07fd925e
content_type: application/pdf
creator: asandaue
date_created: 2021-06-07T12:31:36Z
date_updated: 2021-06-07T12:31:36Z
file_id: '9507'
file_name: 2017_GenomeBiology_Zilberman.pdf
file_size: 278183
relation: main_file
success: 1
file_date_updated: 2021-06-07T12:31:36Z
has_accepted_license: '1'
intvolume: ' 18'
issue: '1'
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
pmid: 1
publication: Genome Biology
publication_identifier:
eissn:
- 1465-6906
issn:
- 1474-760X
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: An evolutionary case for functional gene body methylation in plants and animals
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: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 18
year: '2017'
...
---
_id: '952'
abstract:
- lang: eng
text: A novel strategy for controlling the spread of arboviral diseases such as
dengue, Zika and chikungunya is to transform mosquito populations with virus-suppressing
Wolbachia. In general, Wolbachia transinfected into mosquitoes induce fitness
costs through lower viability or fecundity. These maternally inherited bacteria
also produce a frequency-dependent advantage for infected females by inducing
cytoplasmic incompatibility (CI), which kills the embryos produced by uninfected
females mated to infected males. These competing effects, a frequency-dependent
advantage and frequency-independent costs, produce bistable Wolbachia frequency
dynamics. Above a threshold frequency, denoted pˆ, CI drives fitness-decreasing
Wolbachia transinfections through local populations; but below pˆ, infection frequencies
tend to decline to zero. If pˆ is not too high, CI also drives spatial spread
once infections become established over sufficiently large areas. We illustrate
how simple models provide testable predictions concerning the spatial and temporal
dynamics of Wolbachia introductions, focusing on rate of spatial spread, the shape
of spreading waves, and the conditions for initiating spread from local introductions.
First, we consider the robustness of diffusion-based predictions to incorporating
two important features of wMel-Aedes aegypti biology that may be inconsistent
with the diffusion approximations, namely fast local dynamics induced by complete
CI (i.e., all embryos produced from incompatible crosses die) and long-tailed,
non-Gaussian dispersal. With complete CI, our numerical analyses show that long-tailed
dispersal changes wave-width predictions only slightly; but it can significantly
reduce wave speed relative to the diffusion prediction; it also allows smaller
local introductions to initiate spatial spread. Second, we use approximations
for pˆ and dispersal distances to predict the outcome of 2013 releases of wMel-infected
Aedes aegypti in Cairns, Australia, Third, we describe new data from Ae. aegypti
populations near Cairns, Australia that demonstrate long-distance dispersal and
provide an approximate lower bound on pˆ for wMel in northeastern Australia. Finally,
we apply our analyses to produce operational guidelines for efficient transformation
of vector populations over large areas. We demonstrate that even very slow spatial
spread, on the order of 10-20 m/month (as predicted), can produce area-wide population
transformation within a few years following initial releases covering about 20-30%
of the target area.
article_processing_charge: No
author:
- first_name: Michael
full_name: Turelli, Michael
last_name: Turelli
- 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: 'Turelli M, Barton NH. Deploying dengue-suppressing Wolbachia: Robust models
predict slow but effective spatial spread in Aedes aegypti. Theoretical Population
Biology. 2017;115:45-60. doi:10.1016/j.tpb.2017.03.003'
apa: 'Turelli, M., & Barton, N. H. (2017). Deploying dengue-suppressing Wolbachia:
Robust models predict slow but effective spatial spread in Aedes aegypti. Theoretical
Population Biology. Elsevier. https://doi.org/10.1016/j.tpb.2017.03.003'
chicago: 'Turelli, Michael, and Nicholas H Barton. “Deploying Dengue-Suppressing
Wolbachia: Robust Models Predict Slow but Effective Spatial Spread in Aedes Aegypti.”
Theoretical Population Biology. Elsevier, 2017. https://doi.org/10.1016/j.tpb.2017.03.003.'
ieee: 'M. Turelli and N. H. Barton, “Deploying dengue-suppressing Wolbachia: Robust
models predict slow but effective spatial spread in Aedes aegypti,” Theoretical
Population Biology, vol. 115. Elsevier, pp. 45–60, 2017.'
ista: 'Turelli M, Barton NH. 2017. Deploying dengue-suppressing Wolbachia: Robust
models predict slow but effective spatial spread in Aedes aegypti. Theoretical
Population Biology. 115, 45–60.'
mla: 'Turelli, Michael, and Nicholas H. Barton. “Deploying Dengue-Suppressing Wolbachia:
Robust Models Predict Slow but Effective Spatial Spread in Aedes Aegypti.” Theoretical
Population Biology, vol. 115, Elsevier, 2017, pp. 45–60, doi:10.1016/j.tpb.2017.03.003.'
short: M. Turelli, N.H. Barton, Theoretical Population Biology 115 (2017) 45–60.
date_created: 2018-12-11T11:49:22Z
date_published: 2017-06-01T00:00:00Z
date_updated: 2025-07-10T12:01:49Z
day: '01'
ddc:
- '576'
department:
- _id: NiBa
doi: 10.1016/j.tpb.2017.03.003
external_id:
pmid:
- '28411063'
file:
- access_level: open_access
checksum: 9aeff86fa7de69f7a15cf4fc60d57d01
content_type: application/pdf
creator: dernst
date_created: 2019-04-17T06:39:45Z
date_updated: 2020-07-14T12:48:16Z
file_id: '6327'
file_name: 2017_TheoreticalPopulationBio_Turelli.pdf
file_size: 2073856
relation: main_file
file_date_updated: 2020-07-14T12:48:16Z
has_accepted_license: '1'
intvolume: ' 115'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Submitted Version
page: 45 - 60
pmid: 1
publication: Theoretical Population Biology
publication_identifier:
issn:
- 0040-5809
publication_status: published
publisher: Elsevier
publist_id: '6463'
pubrep_id: '972'
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Deploying dengue-suppressing Wolbachia: Robust models predict slow but effective
spatial spread in Aedes aegypti'
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: 115
year: '2017'
...
---
_id: '954'
abstract:
- lang: eng
text: Understanding the relation between genotype and phenotype remains a major
challenge. The difficulty of predicting individual mutation effects, and particularly
the interactions between them, has prevented the development of a comprehensive
theory that links genotypic changes to their phenotypic effects. We show that
a general thermodynamic framework for gene regulation, based on a biophysical
understanding of protein-DNA binding, accurately predicts the sign of epistasis
in a canonical cis-regulatory element consisting of overlapping RNA polymerase
and repressor binding sites. Sign and magnitude of individual mutation effects
are sufficient to predict the sign of epistasis and its environmental dependence.
Thus, the thermodynamic model offers the correct null prediction for epistasis
between mutations across DNA-binding sites. Our results indicate that a predictive
theory for the effects of cis-regulatory mutations is possible from first principles,
as long as the essential molecular mechanisms and the constraints these impose
on a biological system are accounted for.
article_number: e25192
article_processing_charge: Yes
author:
- first_name: Mato
full_name: Lagator, Mato
id: 345D25EC-F248-11E8-B48F-1D18A9856A87
last_name: Lagator
- first_name: Tiago
full_name: Paixao, Tiago
id: 2C5658E6-F248-11E8-B48F-1D18A9856A87
last_name: Paixao
orcid: 0000-0003-2361-3953
- 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: Jonathan P
full_name: Bollback, Jonathan P
id: 2C6FA9CC-F248-11E8-B48F-1D18A9856A87
last_name: Bollback
orcid: 0000-0002-4624-4612
- first_name: Calin C
full_name: Guet, Calin C
id: 47F8433E-F248-11E8-B48F-1D18A9856A87
last_name: Guet
orcid: 0000-0001-6220-2052
citation:
ama: Lagator M, Paixao T, Barton NH, Bollback JP, Guet CC. On the mechanistic nature
of epistasis in a canonical cis-regulatory element. eLife. 2017;6. doi:10.7554/eLife.25192
apa: Lagator, M., Paixao, T., Barton, N. H., Bollback, J. P., & Guet, C. C.
(2017). On the mechanistic nature of epistasis in a canonical cis-regulatory element.
ELife. eLife Sciences Publications. https://doi.org/10.7554/eLife.25192
chicago: Lagator, Mato, Tiago Paixao, Nicholas H Barton, Jonathan P Bollback, and
Calin C Guet. “On the Mechanistic Nature of Epistasis in a Canonical Cis-Regulatory
Element.” ELife. eLife Sciences Publications, 2017. https://doi.org/10.7554/eLife.25192.
ieee: M. Lagator, T. Paixao, N. H. Barton, J. P. Bollback, and C. C. Guet, “On the
mechanistic nature of epistasis in a canonical cis-regulatory element,” eLife,
vol. 6. eLife Sciences Publications, 2017.
ista: Lagator M, Paixao T, Barton NH, Bollback JP, Guet CC. 2017. On the mechanistic
nature of epistasis in a canonical cis-regulatory element. eLife. 6, e25192.
mla: Lagator, Mato, et al. “On the Mechanistic Nature of Epistasis in a Canonical
Cis-Regulatory Element.” ELife, vol. 6, e25192, eLife Sciences Publications,
2017, doi:10.7554/eLife.25192.
short: M. Lagator, T. Paixao, N.H. Barton, J.P. Bollback, C.C. Guet, ELife 6 (2017).
date_created: 2018-12-11T11:49:23Z
date_published: 2017-05-18T00:00:00Z
date_updated: 2025-07-10T12:01:50Z
day: '18'
ddc:
- '576'
department:
- _id: CaGu
- _id: NiBa
- _id: JoBo
doi: 10.7554/eLife.25192
ec_funded: 1
external_id:
isi:
- '000404024800001'
file:
- access_level: open_access
checksum: 59cdd4400fb41280122d414fea971546
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:17:49Z
date_updated: 2020-07-14T12:48:16Z
file_id: '5306'
file_name: IST-2017-841-v1+1_elife-25192-v2.pdf
file_size: 2441529
relation: main_file
- access_level: open_access
checksum: b69024880558b858eb8c5d47a92b6377
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:17:50Z
date_updated: 2020-07-14T12:48:16Z
file_id: '5307'
file_name: IST-2017-841-v1+2_elife-25192-figures-v2.pdf
file_size: 3752660
relation: main_file
file_date_updated: 2020-07-14T12:48:16Z
has_accepted_license: '1'
intvolume: ' 6'
isi: 1
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
project:
- _id: 25B1EC9E-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '618091'
name: Speed of Adaptation in Population Genetics and Evolutionary Computation
- _id: 25681D80-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '291734'
name: International IST Postdoc Fellowship Programme
- _id: 2578D616-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '648440'
name: Selective Barriers to Horizontal Gene Transfer
publication: eLife
publication_identifier:
issn:
- 2050-084X
publication_status: published
publisher: eLife Sciences Publications
publist_id: '6460'
pubrep_id: '841'
quality_controlled: '1'
scopus_import: '1'
status: public
title: On the mechanistic nature of epistasis in a canonical cis-regulatory element
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: 6
year: '2017'
...
---
_id: '955'
abstract:
- lang: eng
text: 'Gene expression is controlled by networks of regulatory proteins that interact
specifically with external signals and DNA regulatory sequences. These interactions
force the network components to co-evolve so as to continually maintain function.
Yet, existing models of evolution mostly focus on isolated genetic elements. In
contrast, we study the essential process by which regulatory networks grow: the
duplication and subsequent specialization of network components. We synthesize
a biophysical model of molecular interactions with the evolutionary framework
to find the conditions and pathways by which new regulatory functions emerge.
We show that specialization of new network components is usually slow, but can
be drastically accelerated in the presence of regulatory crosstalk and mutations
that promote promiscuous interactions between network components.'
article_number: '216'
article_processing_charge: Yes (in subscription journal)
author:
- first_name: Tamar
full_name: Friedlander, Tamar
id: 36A5845C-F248-11E8-B48F-1D18A9856A87
last_name: Friedlander
- first_name: Roshan
full_name: Prizak, Roshan
id: 4456104E-F248-11E8-B48F-1D18A9856A87
last_name: Prizak
- 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: Gasper
full_name: Tkacik, Gasper
id: 3D494DCA-F248-11E8-B48F-1D18A9856A87
last_name: Tkacik
orcid: 0000-0002-6699-1455
citation:
ama: Friedlander T, Prizak R, Barton NH, Tkačik G. Evolution of new regulatory functions
on biophysically realistic fitness landscapes. Nature Communications. 2017;8(1).
doi:10.1038/s41467-017-00238-8
apa: Friedlander, T., Prizak, R., Barton, N. H., & Tkačik, G. (2017). Evolution
of new regulatory functions on biophysically realistic fitness landscapes. Nature
Communications. Nature Publishing Group. https://doi.org/10.1038/s41467-017-00238-8
chicago: Friedlander, Tamar, Roshan Prizak, Nicholas H Barton, and Gašper Tkačik.
“Evolution of New Regulatory Functions on Biophysically Realistic Fitness Landscapes.”
Nature Communications. Nature Publishing Group, 2017. https://doi.org/10.1038/s41467-017-00238-8.
ieee: T. Friedlander, R. Prizak, N. H. Barton, and G. Tkačik, “Evolution of new
regulatory functions on biophysically realistic fitness landscapes,” Nature
Communications, vol. 8, no. 1. Nature Publishing Group, 2017.
ista: Friedlander T, Prizak R, Barton NH, Tkačik G. 2017. Evolution of new regulatory
functions on biophysically realistic fitness landscapes. Nature Communications.
8(1), 216.
mla: Friedlander, Tamar, et al. “Evolution of New Regulatory Functions on Biophysically
Realistic Fitness Landscapes.” Nature Communications, vol. 8, no. 1, 216,
Nature Publishing Group, 2017, doi:10.1038/s41467-017-00238-8.
short: T. Friedlander, R. Prizak, N.H. Barton, G. Tkačik, Nature Communications
8 (2017).
corr_author: '1'
date_created: 2018-12-11T11:49:23Z
date_published: 2017-08-09T00:00:00Z
date_updated: 2026-04-08T13:54:24Z
day: '09'
ddc:
- '539'
- '576'
department:
- _id: GaTk
- _id: NiBa
doi: 10.1038/s41467-017-00238-8
ec_funded: 1
external_id:
isi:
- '000407198800005'
file:
- access_level: open_access
checksum: 29a1b5db458048d3bd5c67e0e2a56818
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:14:14Z
date_updated: 2020-07-14T12:48:16Z
file_id: '5064'
file_name: IST-2017-864-v1+1_s41467-017-00238-8.pdf
file_size: 998157
relation: main_file
- access_level: open_access
checksum: 7b78401e52a576cf3e6bbf8d0abadc17
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:14:15Z
date_updated: 2020-07-14T12:48:16Z
file_id: '5065'
file_name: IST-2017-864-v1+2_41467_2017_238_MOESM1_ESM.pdf
file_size: 9715993
relation: main_file
file_date_updated: 2020-07-14T12:48:16Z
has_accepted_license: '1'
intvolume: ' 8'
isi: 1
issue: '1'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
project:
- _id: 25681D80-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '291734'
name: International IST Postdoc Fellowship Programme
- _id: 25B07788-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '250152'
name: Limits to selection in biology and in evolutionary computation
- _id: 254E9036-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P28844-B27
name: Biophysics of information processing in gene regulation
publication: Nature Communications
publication_identifier:
issn:
- 2041-1723
publication_status: published
publisher: Nature Publishing Group
publist_id: '6459'
pubrep_id: '864'
quality_controlled: '1'
related_material:
record:
- id: '6071'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: Evolution of new regulatory functions on biophysically realistic fitness landscapes
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: 8
year: '2017'
...
---
_id: '956'
abstract:
- lang: eng
text: We study a class of ergodic quantum Markov semigroups on finite-dimensional
unital C⁎-algebras. These semigroups have a unique stationary state σ, and we
are concerned with those that satisfy a quantum detailed balance condition with
respect to σ. We show that the evolution on the set of states that is given by
such a quantum Markov semigroup is gradient flow for the relative entropy with
respect to σ in a particular Riemannian metric on the set of states. This metric
is a non-commutative analog of the 2-Wasserstein metric, and in several interesting
cases we are able to show, in analogy with work of Otto on gradient flows with
respect to the classical 2-Wasserstein metric, that the relative entropy is strictly
and uniformly convex with respect to the Riemannian metric introduced here. As
a consequence, we obtain a number of new inequalities for the decay of relative
entropy for ergodic quantum Markov semigroups with detailed balance.
article_processing_charge: No
arxiv: 1
author:
- first_name: Eric
full_name: Carlen, Eric
last_name: Carlen
- first_name: Jan
full_name: Maas, Jan
id: 4C5696CE-F248-11E8-B48F-1D18A9856A87
last_name: Maas
orcid: 0000-0002-0845-1338
citation:
ama: Carlen E, Maas J. Gradient flow and entropy inequalities for quantum Markov
semigroups with detailed balance. Journal of Functional Analysis. 2017;273(5):1810-1869.
doi:10.1016/j.jfa.2017.05.003
apa: Carlen, E., & Maas, J. (2017). Gradient flow and entropy inequalities for
quantum Markov semigroups with detailed balance. Journal of Functional Analysis.
Academic Press. https://doi.org/10.1016/j.jfa.2017.05.003
chicago: Carlen, Eric, and Jan Maas. “Gradient Flow and Entropy Inequalities for
Quantum Markov Semigroups with Detailed Balance.” Journal of Functional Analysis.
Academic Press, 2017. https://doi.org/10.1016/j.jfa.2017.05.003.
ieee: E. Carlen and J. Maas, “Gradient flow and entropy inequalities for quantum
Markov semigroups with detailed balance,” Journal of Functional Analysis,
vol. 273, no. 5. Academic Press, pp. 1810–1869, 2017.
ista: Carlen E, Maas J. 2017. Gradient flow and entropy inequalities for quantum
Markov semigroups with detailed balance. Journal of Functional Analysis. 273(5),
1810–1869.
mla: Carlen, Eric, and Jan Maas. “Gradient Flow and Entropy Inequalities for Quantum
Markov Semigroups with Detailed Balance.” Journal of Functional Analysis,
vol. 273, no. 5, Academic Press, 2017, pp. 1810–69, doi:10.1016/j.jfa.2017.05.003.
short: E. Carlen, J. Maas, Journal of Functional Analysis 273 (2017) 1810–1869.
date_created: 2018-12-11T11:49:24Z
date_published: 2017-09-01T00:00:00Z
date_updated: 2025-06-04T08:14:53Z
day: '01'
department:
- _id: JaMa
doi: 10.1016/j.jfa.2017.05.003
external_id:
arxiv:
- '1609.01254'
isi:
- '000406082300005'
intvolume: ' 273'
isi: 1
issue: '5'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1609.01254
month: '09'
oa: 1
oa_version: Submitted Version
page: 1810 - 1869
publication: Journal of Functional Analysis
publication_identifier:
issn:
- 0022-1236
publication_status: published
publisher: Academic Press
publist_id: '6452'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Gradient flow and entropy inequalities for quantum Markov semigroups with detailed
balance
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 273
year: '2017'
...
---
_id: '957'
abstract:
- lang: eng
text: Small molecule biosensors based on Forster resonance energy transfer (FRET)
enable small molecule signaling to be monitored with high spatial and temporal
resolution in complex cellular environments. FRET sensors can be constructed by
fusing a pair of fluorescent proteins to a suitable recognition domain, such as
a member of the solute-binding protein (SBP) superfamily. However, naturally occurring
SBPs may be unsuitable for incorporation into FRET sensors due to their low thermostability,
which may preclude imaging under physiological conditions, or because the positions
of their N- and C-termini may be suboptimal for fusion of fluorescent proteins,
which may limit the dynamic range of the resulting sensors. Here, we show how
these problems can be overcome using ancestral protein reconstruction and circular
permutation. Ancestral protein reconstruction, used as a protein engineering strategy,
leverages phylogenetic information to improve the thermostability of proteins,
while circular permutation enables the termini of an SBP to be repositioned to
maximize the dynamic range of the resulting FRET sensor. We also provide a protocol
for cloning the engineered SBPs into FRET sensor constructs using Golden Gate
assembly and discuss considerations for in situ characterization of the FRET sensors.
alternative_title:
- Methods in Molecular Biology
article_processing_charge: No
author:
- first_name: Ben
full_name: Clifton, Ben
last_name: Clifton
- first_name: Jason
full_name: Whitfield, Jason
last_name: Whitfield
- first_name: Inmaculada
full_name: Sanchez Romero, Inmaculada
id: 3D9C5D30-F248-11E8-B48F-1D18A9856A87
last_name: Sanchez Romero
- first_name: Michel
full_name: Herde, Michel
last_name: Herde
- first_name: Christian
full_name: Henneberger, Christian
last_name: Henneberger
- first_name: Harald L
full_name: Janovjak, Harald L
id: 33BA6C30-F248-11E8-B48F-1D18A9856A87
last_name: Janovjak
orcid: 0000-0002-8023-9315
- first_name: Colin
full_name: Jackson, Colin
last_name: Jackson
citation:
ama: 'Clifton B, Whitfield J, Sanchez-Romero I, et al. Ancestral protein reconstruction
and circular permutation for improving the stability and dynamic range of FRET
sensors. In: Stein V, ed. Synthetic Protein Switches. Vol 1596. Synthetic
Protein Switches. Springer; 2017:71-87. doi:10.1007/978-1-4939-6940-1_5'
apa: Clifton, B., Whitfield, J., Sanchez-Romero, I., Herde, M., Henneberger, C.,
Janovjak, H. L., & Jackson, C. (2017). Ancestral protein reconstruction and
circular permutation for improving the stability and dynamic range of FRET sensors.
In V. Stein (Ed.), Synthetic Protein Switches (Vol. 1596, pp. 71–87). Springer.
https://doi.org/10.1007/978-1-4939-6940-1_5
chicago: Clifton, Ben, Jason Whitfield, Inmaculada Sanchez-Romero, Michel Herde,
Christian Henneberger, Harald L Janovjak, and Colin Jackson. “Ancestral Protein
Reconstruction and Circular Permutation for Improving the Stability and Dynamic
Range of FRET Sensors.” In Synthetic Protein Switches, edited by Viktor
Stein, 1596:71–87. Synthetic Protein Switches. Springer, 2017. https://doi.org/10.1007/978-1-4939-6940-1_5.
ieee: B. Clifton et al., “Ancestral protein reconstruction and circular permutation
for improving the stability and dynamic range of FRET sensors,” in Synthetic
Protein Switches, vol. 1596, V. Stein, Ed. Springer, 2017, pp. 71–87.
ista: 'Clifton B, Whitfield J, Sanchez-Romero I, Herde M, Henneberger C, Janovjak
HL, Jackson C. 2017.Ancestral protein reconstruction and circular permutation
for improving the stability and dynamic range of FRET sensors. In: Synthetic Protein
Switches. Methods in Molecular Biology, vol. 1596, 71–87.'
mla: Clifton, Ben, et al. “Ancestral Protein Reconstruction and Circular Permutation
for Improving the Stability and Dynamic Range of FRET Sensors.” Synthetic Protein
Switches, edited by Viktor Stein, vol. 1596, Springer, 2017, pp. 71–87, doi:10.1007/978-1-4939-6940-1_5.
short: B. Clifton, J. Whitfield, I. Sanchez-Romero, M. Herde, C. Henneberger, H.L.
Janovjak, C. Jackson, in:, V. Stein (Ed.), Synthetic Protein Switches, Springer,
2017, pp. 71–87.
date_created: 2018-12-11T11:49:24Z
date_published: 2017-03-15T00:00:00Z
date_updated: 2025-07-10T12:01:52Z
day: '15'
department:
- _id: HaJa
doi: 10.1007/978-1-4939-6940-1_5
editor:
- first_name: Viktor
full_name: Stein, Viktor
last_name: Stein
intvolume: ' 1596'
language:
- iso: eng
month: '03'
oa_version: None
page: 71 - 87
project:
- _id: 255BFFFA-B435-11E9-9278-68D0E5697425
grant_number: RGY0084/2012
name: In situ real-time imaging of neurotransmitter signaling using designer optical
sensors
publication: Synthetic Protein Switches
publication_identifier:
issn:
- 1064-3745
publication_status: published
publisher: Springer
publist_id: '6451'
quality_controlled: '1'
scopus_import: '1'
series_title: Synthetic Protein Switches
status: public
title: Ancestral protein reconstruction and circular permutation for improving the
stability and dynamic range of FRET sensors
type: book_chapter
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 1596
year: '2017'
...
---
_id: '958'
abstract:
- lang: eng
text: Biosensors that exploit Forster resonance energy transfer (FRET) can be used
to visualize biological and physiological processes and are capable of providing
detailed information in both spatial and temporal dimensions. In a FRET-based
biosensor, substrate binding is associated with a change in the relative positions
of two fluorophores, leading to a change in FRET efficiency that may be observed
in the fluorescence spectrum. As a result, their design requires a ligand-binding
protein that exhibits a conformational change upon binding. However, not all ligand-binding
proteins produce responsive sensors upon conjugation to fluorescent proteins or
dyes, and identifying the optimum locations for the fluorophores often involves
labor-intensive iterative design or high-throughput screening. Combining the genetic
fusion of a fluorescent protein to the ligand-binding protein with site-specific
covalent attachment of a fluorescent dye can allow fine control over the positions
of the two fluorophores, allowing the construction of very sensitive sensors.
This relies upon the accurate prediction of the locations of the two fluorophores
in bound and unbound states. In this chapter, we describe a method for computational
identification of dye-attachment sites that allows the use of cysteine modification
to attach synthetic dyes that can be paired with a fluorescent protein for the
purposes of creating FRET sensors.
alternative_title:
- Methods in Molecular Biology
article_processing_charge: No
author:
- first_name: Joshua
full_name: Mitchell, Joshua
last_name: Mitchell
- first_name: William
full_name: Zhang, William
last_name: Zhang
- first_name: Michel
full_name: Herde, Michel
last_name: Herde
- first_name: Christian
full_name: Henneberger, Christian
last_name: Henneberger
- first_name: Harald L
full_name: Janovjak, Harald L
id: 33BA6C30-F248-11E8-B48F-1D18A9856A87
last_name: Janovjak
orcid: 0000-0002-8023-9315
- first_name: Megan
full_name: O'Mara, Megan
last_name: O'Mara
- first_name: Colin
full_name: Jackson, Colin
last_name: Jackson
citation:
ama: 'Mitchell J, Zhang W, Herde M, et al. Method for developing optical sensors
using a synthetic dye fluorescent protein FRET pair and computational modeling
and assessment. In: Stein V, ed. Synthetic Protein Switches. Vol 1596.
Synthetic Protein Switches. Springer; 2017:89-99. doi:10.1007/978-1-4939-6940-1_6'
apa: Mitchell, J., Zhang, W., Herde, M., Henneberger, C., Janovjak, H. L., O’Mara,
M., & Jackson, C. (2017). Method for developing optical sensors using a synthetic
dye fluorescent protein FRET pair and computational modeling and assessment. In
V. Stein (Ed.), Synthetic Protein Switches (Vol. 1596, pp. 89–99). Springer.
https://doi.org/10.1007/978-1-4939-6940-1_6
chicago: Mitchell, Joshua, William Zhang, Michel Herde, Christian Henneberger, Harald
L Janovjak, Megan O’Mara, and Colin Jackson. “Method for Developing Optical Sensors
Using a Synthetic Dye Fluorescent Protein FRET Pair and Computational Modeling
and Assessment.” In Synthetic Protein Switches, edited by Viktor Stein,
1596:89–99. Synthetic Protein Switches. Springer, 2017. https://doi.org/10.1007/978-1-4939-6940-1_6.
ieee: J. Mitchell et al., “Method for developing optical sensors using a
synthetic dye fluorescent protein FRET pair and computational modeling and assessment,”
in Synthetic Protein Switches, vol. 1596, V. Stein, Ed. Springer, 2017,
pp. 89–99.
ista: 'Mitchell J, Zhang W, Herde M, Henneberger C, Janovjak HL, O’Mara M, Jackson
C. 2017.Method for developing optical sensors using a synthetic dye fluorescent
protein FRET pair and computational modeling and assessment. In: Synthetic Protein
Switches. Methods in Molecular Biology, vol. 1596, 89–99.'
mla: Mitchell, Joshua, et al. “Method for Developing Optical Sensors Using a Synthetic
Dye Fluorescent Protein FRET Pair and Computational Modeling and Assessment.”
Synthetic Protein Switches, edited by Viktor Stein, vol. 1596, Springer,
2017, pp. 89–99, doi:10.1007/978-1-4939-6940-1_6.
short: J. Mitchell, W. Zhang, M. Herde, C. Henneberger, H.L. Janovjak, M. O’Mara,
C. Jackson, in:, V. Stein (Ed.), Synthetic Protein Switches, Springer, 2017, pp.
89–99.
date_created: 2018-12-11T11:49:24Z
date_published: 2017-05-15T00:00:00Z
date_updated: 2025-07-10T12:01:54Z
day: '15'
department:
- _id: HaJa
doi: 10.1007/978-1-4939-6940-1_6
editor:
- first_name: Viktor
full_name: Stein, Viktor
last_name: Stein
intvolume: ' 1596'
language:
- iso: eng
month: '05'
oa_version: None
page: 89 - 99
publication: Synthetic Protein Switches
publication_identifier:
issn:
- 1064-3745
publication_status: published
publisher: Springer
publist_id: '6450'
quality_controlled: '1'
scopus_import: '1'
series_title: Synthetic Protein Switches
status: public
title: Method for developing optical sensors using a synthetic dye fluorescent protein
FRET pair and computational modeling and assessment
type: book_chapter
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 1596
year: '2017'
...
---
OA_place: publisher
_id: '961'
abstract:
- lang: eng
text: Cell-cell contact formation constitutes the first step in the emergence of multicellularity in
evolution, thereby allowing the differentiation of specialized cell types. In metazoan
development, cell-cell contact formation is thought to influence cell fate specification,
and cell fate specification has been implicated in cell-cell contact
formation. However, remarkably little is yet known about whether and how the
interaction and feedback between cell-cell contact formation and cell fate specification
affect development. Here we identify a positive feedback loop between cell-cell contact duration, morphogen signaling and
mesendoderm cell fate specification during zebrafish gastrulation. We show that long
lasting cell-cell contacts enhance the competence of prechordal plate (ppl) progenitor
cells to respond to Nodal signaling, required for proper ppl cell fate specification. We further
show that Nodal signalling romotes ppl cell-cell contact duration, thereby generating an
effective positive feedback loop between ppl cell-cell contact duration and cell fate
specification. Finally, by using a combination of theoretical modeling and experimentation,
we show that this feedback loop determines whether anterior axial mesendoderm cells
become ppl progenitors or, instead, turn into endoderm progenitors. Our findings reveal
that the gene regulatory networks leading to cell fate diversification within the developing
embryo are controlled by the interdependent activities of cell-cell signaling and contact
formation.
acknowledgement: "Many people accompanied me during this trip: I would not have reached
my destination nor \r\nenjoyed the travelling without them. First of all, thanks
to CP. Thanks for making me part of \r\nyour team, always full of diverse, interesting
and incredibly competent people and thanks for \r\nall the good science I witnessed
\ and participated in. It has been a \r\nblast, an incredibly \r\nexciting
\ one! Thanks to JLo, for teaching me how to master my pipettes and
\ showing me \r\nthat science is a lot of fun. Many, many thanks to Gabby for teaching
me basically everything \r\nabout zebrafish and being always there to advice,
\ sugge\r\nst, support...and play fussball! \r\nThank you to Julien, for the
critical eye on things, Pedro, for all the invaluable feedback and \r\nthe amazing
kicker matches, and Keisuke, for showing me the light, and to the three of them
\r\ntogether for all the good laughs we\r\nhad. My start in Vienna would
\ have been a lot more \r\ndifficult without you guys. Also it would not
\ have been possible without Elena and Inês: \r\nthanks for helping setting
\ up this lab and for the dinners in Gugging. Thanks to Martin, for
\r\nhelping me understand \r\nthe physics behind biology. Thanks to Philipp,
\ for the interest and \r\nadvice, and to Michael, for the Viennise take on things.
Thanks to Julia, for putting up with \r\nbeing our technician and becoming a friend
in the process. And now to the newest members \r\nof th\r\ne lab. Thanks to Daniel
for the enthusiasm and the neverending energy and for all your \r\nhelp over the
years: thank you! To Jana, for showing me that one doesn’t give up, no matter \r\nwhat.
\ To Shayan, for being such a motivated student. To Matt, for helping
\ out\r\nwith coding \r\nand for finding punk solutions to data analysis problems.
Thanks to all the members of the \r\nlab, Verena, Hitoshi, Silvia, Conny, Karla,
Nicoletta, Zoltan, Peng, Benoit, Roland, Yuuta and \r\nFeyza, for the wonderful
\ atmosphere in the lab. Many than\r\nks to Koni and Deborah: doing \r\nexperiments
would have been much more difficult without your help. Special thanks to Katjia
\r\nfor setting up an amazing imaging facility and for building the best
\ team, Robert, Nasser, \r\nAnna and Doreen: thank you for putting up w\r\nith
all the late sortings and for helping with all \r\nthe technical problems. Thanks
to Eva, Verena and Matthias for keeping the fish happy. Big \r\nthanks to Harald
Janovjak for being a present and helpful committee member over the years \r\nand
\ to Patrick Lemaire f\r\nor the helpful insight and extremely interesting
\ discussion we had \r\nabout the project. Also, this journey would not
\ have been the same without all the friends \r\nthat I met in Dresden and
then in Vienna: Daniele, Claire, Kuba, Steffi, Harold, Dejan, Irene, \r\nFab\r\nienne,
Hande, Tiago, Marianne, Jon, Srdjan, Branca, Uli, Murat, Alex, Conny, Christoph,
\r\nCaro, Simone, Barbara, Felipe, Dama, Jose, Hubert and many others that filled
my days with \r\nfun and support. A special thank to my family, always close even
if they are \r\nkilometers away. \r\nGrazie ai miei fratelli, Nunzio e William,
\ e alla mia mamma, per essermi sempre vicini pur \r\nvivendo a chilometri
di distanza. And, last but not least, thanks to Moritz, for putting up with \r\nthe
crazy life of a scientist, the living apart for\r\nso long, never knowing when things
are going \r\nto happen. Thanks for being a great partner and my number one fan!"
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Vanessa
full_name: Barone, Vanessa
id: 419EECCC-F248-11E8-B48F-1D18A9856A87
last_name: Barone
orcid: 0000-0003-2676-3367
citation:
ama: 'Barone V. Cell adhesion and cell fate: An effective feedback loop during zebrafish
gastrulation. 2017. doi:10.15479/AT:ISTA:th_825'
apa: 'Barone, V. (2017). Cell adhesion and cell fate: An effective feedback loop
during zebrafish gastrulation. Institute of Science and Technology Austria.
https://doi.org/10.15479/AT:ISTA:th_825'
chicago: 'Barone, Vanessa. “Cell Adhesion and Cell Fate: An Effective Feedback Loop
during Zebrafish Gastrulation.” Institute of Science and Technology Austria, 2017.
https://doi.org/10.15479/AT:ISTA:th_825.'
ieee: 'V. Barone, “Cell adhesion and cell fate: An effective feedback loop during
zebrafish gastrulation,” Institute of Science and Technology Austria, 2017.'
ista: 'Barone V. 2017. Cell adhesion and cell fate: An effective feedback loop during
zebrafish gastrulation. Institute of Science and Technology Austria.'
mla: 'Barone, Vanessa. Cell Adhesion and Cell Fate: An Effective Feedback Loop
during Zebrafish Gastrulation. Institute of Science and Technology Austria,
2017, doi:10.15479/AT:ISTA:th_825.'
short: 'V. Barone, Cell Adhesion and Cell Fate: An Effective Feedback Loop during
Zebrafish Gastrulation, Institute of Science and Technology Austria, 2017.'
corr_author: '1'
date_created: 2018-12-11T11:49:25Z
date_published: 2017-03-01T00:00:00Z
date_updated: 2026-06-18T18:12:40Z
day: '01'
ddc:
- '570'
- '590'
degree_awarded: PhD
department:
- _id: CaHe
doi: 10.15479/AT:ISTA:th_825
file:
- access_level: closed
checksum: 242f88c87f2cf267bf05049fa26a687b
content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
creator: dernst
date_created: 2019-04-05T08:36:52Z
date_updated: 2020-07-14T12:48:16Z
file_id: '6205'
file_name: 2017_Barone_thesis_final.docx
file_size: 14497822
relation: source_file
- access_level: open_access
checksum: ba5b0613ed8bade73a409acdd880fb8a
content_type: application/pdf
creator: dernst
date_created: 2019-04-05T08:36:52Z
date_updated: 2020-07-14T12:48:16Z
file_id: '6206'
file_name: 2017_Barone_thesis_.pdf
file_size: 14995941
relation: main_file
file_date_updated: 2020-07-14T12:48:16Z
has_accepted_license: '1'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
page: '109'
publication_identifier:
issn:
- 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
publist_id: '6444'
pubrep_id: '825'
related_material:
record:
- id: '735'
relation: part_of_dissertation
status: public
- id: '1100'
relation: part_of_dissertation
status: public
- id: '1537'
relation: part_of_dissertation
status: public
- id: '3246'
relation: part_of_dissertation
status: public
- id: '2926'
relation: part_of_dissertation
status: public
- id: '676'
relation: part_of_dissertation
status: public
- id: '1912'
relation: part_of_dissertation
status: public
status: public
supervisor:
- first_name: Carl-Philipp J
full_name: Heisenberg, Carl-Philipp J
id: 39427864-F248-11E8-B48F-1D18A9856A87
last_name: Heisenberg
orcid: 0000-0002-0912-4566
title: 'Cell adhesion and cell fate: An effective feedback loop during zebrafish gastrulation'
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: dissertation
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
year: '2017'
...