Thomas Lesaffre 🌱
@thomaslesaffre.bsky.social
Postdoc at @dee-unil.bsky.social interested in the theoretical study of plant evolution 🌺 | I also like badminton 🏸, chess♟️, beer 🍺 and raccoons 🦝 !
SNSF Ambizione fellow at @unifrbiology.bsky.social starting Sept 2026
https://thomas-lesaffre.github.io/
SNSF Ambizione fellow at @unifrbiology.bsky.social starting Sept 2026
https://thomas-lesaffre.github.io/
Pinned
NEW SPECIAL ISSUE JUST RELEASED!
Sex unfolded: sex, asex, sexes. Read the introductory editorial by Guest Editors D. Roze, S Glemin, @thomaslenormand.bsky.social & K. Van Doninck here: academic.oup.com/jeb/issue/38/7
Fantastic cover art by Caroline Blanc.
Sex unfolded: sex, asex, sexes. Read the introductory editorial by Guest Editors D. Roze, S Glemin, @thomaslenormand.bsky.social & K. Van Doninck here: academic.oup.com/jeb/issue/38/7
Fantastic cover art by Caroline Blanc.
Volume 38 Issue 7 | Journal of Evolutionary Biology | Oxford Academic
Journal of Evolutionary Biology
academic.oup.com
Delighted to have our work on the joint emergence of dioecy and sexual dimorphism be part of this wonderful special issue!
I will be presenting this at @eseb2025.bsky.social in a couple of weeks, poster P02.385 on Aug 19th. Feel free to pop by! ☺️
I will be presenting this at @eseb2025.bsky.social in a couple of weeks, poster P02.385 on Aug 19th. Feel free to pop by! ☺️
Only a few days left to register and join us in Lille for this first ever French edition of PopGroup!
Hi Folks !
Just a few more days to register for the POPGROUP meeting (deadline = this Monday 10/11/2025).
Join us in the beautiful city of #Lille just across the Channel for three exciting days of science and more !
www.hautsdefrancetourism.com/destinations...
--> populationgeneticsgroup.org.uk
Just a few more days to register for the POPGROUP meeting (deadline = this Monday 10/11/2025).
Join us in the beautiful city of #Lille just across the Channel for three exciting days of science and more !
www.hautsdefrancetourism.com/destinations...
--> populationgeneticsgroup.org.uk
November 5, 2025 at 9:49 AM
Only a few days left to register and join us in Lille for this first ever French edition of PopGroup!
Reposted by Thomas Lesaffre 🌱
Next week's DEE External Seminar welcomes Andrew Pomiankowski (hosted by @charlesmullon.bsky.social ) with a talk on mitochondrial quality and the evolution of sexes. 12:15, November 6th at the Biophore Amphitheatre or online via REC-UNIL.
October 30, 2025 at 11:20 AM
Next week's DEE External Seminar welcomes Andrew Pomiankowski (hosted by @charlesmullon.bsky.social ) with a talk on mitochondrial quality and the evolution of sexes. 12:15, November 6th at the Biophore Amphitheatre or online via REC-UNIL.
Reposted by Thomas Lesaffre 🌱
(1/9) Join us in Bern, Switzerland (8–11 Feb 2026) for our EMBO Workshop on Molecular Mechanisms of Selfish Elements and Strategies!
Organized with Tanja Schwander, Laura Ross (@laurarossevo.bsky.social) and Axel Imhof.
meetings.embo.org/event/26-sel...
#EMBOselfishElements #EMBOevents
Organized with Tanja Schwander, Laura Ross (@laurarossevo.bsky.social) and Axel Imhof.
meetings.embo.org/event/26-sel...
#EMBOselfishElements #EMBOevents
Molecular mechanisms of selfish elements and strategies
Certain genes, chromosomes, organelles, or entire sets of chromosomes can bias their transmission to the next generation, propagating themselves at the expense of the rest of the genome. Referred to …
meetings.embo.org
October 27, 2025 at 5:37 PM
(1/9) Join us in Bern, Switzerland (8–11 Feb 2026) for our EMBO Workshop on Molecular Mechanisms of Selfish Elements and Strategies!
Organized with Tanja Schwander, Laura Ross (@laurarossevo.bsky.social) and Axel Imhof.
meetings.embo.org/event/26-sel...
#EMBOselfishElements #EMBOevents
Organized with Tanja Schwander, Laura Ross (@laurarossevo.bsky.social) and Axel Imhof.
meetings.embo.org/event/26-sel...
#EMBOselfishElements #EMBOevents
Reposted by Thomas Lesaffre 🌱
Encore une fois il a plié cette obscénité mise en scène tout au long de la journée d’hier.
Propre, carré, clinique.
On peut passer à autre chose
Propre, carré, clinique.
On peut passer à autre chose
October 22, 2025 at 5:54 AM
Encore une fois il a plié cette obscénité mise en scène tout au long de la journée d’hier.
Propre, carré, clinique.
On peut passer à autre chose
Propre, carré, clinique.
On peut passer à autre chose
Reposted by Thomas Lesaffre 🌱
Avez-vous déjà vu... un tardigrade faire le tour de sa petite planète de cellules d'algue Volvox ?
Maintenant oui 😊
Cette vidéo a été classée 4ème au concours de microphotographie Nikon Small World 2025.
www.nikonsmallworld.com/galleries/20...
cc @eloscicomm.bsky.social 😉
Maintenant oui 😊
Cette vidéo a été classée 4ème au concours de microphotographie Nikon Small World 2025.
www.nikonsmallworld.com/galleries/20...
cc @eloscicomm.bsky.social 😉
September 30, 2025 at 8:14 AM
Avez-vous déjà vu... un tardigrade faire le tour de sa petite planète de cellules d'algue Volvox ?
Maintenant oui 😊
Cette vidéo a été classée 4ème au concours de microphotographie Nikon Small World 2025.
www.nikonsmallworld.com/galleries/20...
cc @eloscicomm.bsky.social 😉
Maintenant oui 😊
Cette vidéo a été classée 4ème au concours de microphotographie Nikon Small World 2025.
www.nikonsmallworld.com/galleries/20...
cc @eloscicomm.bsky.social 😉
Reposted by Thomas Lesaffre 🌱
Exciting news!
The next #PopGroup meeting will take place in Lille 🍟, France, 7–9 January 2026 – just 1 hour by train from London, Brussels, and Paris.
This year, PopGroup will also host ALPHY, the annual meeting of Evolutionary Genomics.
More info: populationgeneticsgroup.org.uk
See you there !
The next #PopGroup meeting will take place in Lille 🍟, France, 7–9 January 2026 – just 1 hour by train from London, Brussels, and Paris.
This year, PopGroup will also host ALPHY, the annual meeting of Evolutionary Genomics.
More info: populationgeneticsgroup.org.uk
See you there !
Population Genetics group 59
populationgeneticsgroup.org.uk
September 29, 2025 at 8:52 AM
Exciting news!
The next #PopGroup meeting will take place in Lille 🍟, France, 7–9 January 2026 – just 1 hour by train from London, Brussels, and Paris.
This year, PopGroup will also host ALPHY, the annual meeting of Evolutionary Genomics.
More info: populationgeneticsgroup.org.uk
See you there !
The next #PopGroup meeting will take place in Lille 🍟, France, 7–9 January 2026 – just 1 hour by train from London, Brussels, and Paris.
This year, PopGroup will also host ALPHY, the annual meeting of Evolutionary Genomics.
More info: populationgeneticsgroup.org.uk
See you there !
Reposted by Thomas Lesaffre 🌱
In 2020, O Gaggiotti, J Goudet and I showed that Qst-Fst comparison was uncalibrated with high population structure.
During her PhD with us, Isa do O developed LogAV: a method that accounts for any population structure while testing for local adaptation :
journals.plos.org/plosgenetics...
During her PhD with us, Isa do O developed LogAV: a method that accounts for any population structure while testing for local adaptation :
journals.plos.org/plosgenetics...
A method for identifying local adaptation in structured populations
Species occupy diverse, heterogeneous environments, which expose populations to spatially varied selective pressures. Populations in different environments can diverge due to local adaptation. However...
journals.plos.org
September 24, 2025 at 7:23 AM
In 2020, O Gaggiotti, J Goudet and I showed that Qst-Fst comparison was uncalibrated with high population structure.
During her PhD with us, Isa do O developed LogAV: a method that accounts for any population structure while testing for local adaptation :
journals.plos.org/plosgenetics...
During her PhD with us, Isa do O developed LogAV: a method that accounts for any population structure while testing for local adaptation :
journals.plos.org/plosgenetics...
Reposted by Thomas Lesaffre 🌱
🌸 FLOWERING NEWSLETTER REVIEW 🌸
🧬 Since the discovery of the first plant sex-determining gene, more than 20 other genes have been identified. Here Marais et al. review what this tells us about the evolution of separate sexes (dioecy) in angiosperms 🌸
🔗 doi.org/10.1093/jxb/...
#PlantScience 🧪
🧬 Since the discovery of the first plant sex-determining gene, more than 20 other genes have been identified. Here Marais et al. review what this tells us about the evolution of separate sexes (dioecy) in angiosperms 🌸
🔗 doi.org/10.1093/jxb/...
#PlantScience 🧪
September 23, 2025 at 1:12 PM
🌸 FLOWERING NEWSLETTER REVIEW 🌸
🧬 Since the discovery of the first plant sex-determining gene, more than 20 other genes have been identified. Here Marais et al. review what this tells us about the evolution of separate sexes (dioecy) in angiosperms 🌸
🔗 doi.org/10.1093/jxb/...
#PlantScience 🧪
🧬 Since the discovery of the first plant sex-determining gene, more than 20 other genes have been identified. Here Marais et al. review what this tells us about the evolution of separate sexes (dioecy) in angiosperms 🌸
🔗 doi.org/10.1093/jxb/...
#PlantScience 🧪
Reposted by Thomas Lesaffre 🌱
Check out this cool work from @crouxevo.bsky.social and others, congrats!!! 🥳
Rapid establishment of species barriers in plants compared with that in animals | Science www.science.org/doi/10.1126/...
Rapid establishment of species barriers in plants compared with that in animals | Science www.science.org/doi/10.1126/...
Rapid establishment of species barriers in plants compared with that in animals
Speciation, the process by which new reproductively isolated species emerge from ancestral populations, results from the gradual accumulation of barriers to gene flow within genomes. To date, the noti...
www.science.org
September 12, 2025 at 7:10 AM
Check out this cool work from @crouxevo.bsky.social and others, congrats!!! 🥳
Rapid establishment of species barriers in plants compared with that in animals | Science www.science.org/doi/10.1126/...
Rapid establishment of species barriers in plants compared with that in animals | Science www.science.org/doi/10.1126/...
Reposted by Thomas Lesaffre 🌱
Allez
Pas besoin de grands discours pour résumer la situation.
Juste 1 minute d’orfèvrerie
Pas besoin de grands discours pour résumer la situation.
Juste 1 minute d’orfèvrerie
September 10, 2025 at 7:48 AM
Allez
Pas besoin de grands discours pour résumer la situation.
Juste 1 minute d’orfèvrerie
Pas besoin de grands discours pour résumer la situation.
Juste 1 minute d’orfèvrerie
Reposted by Thomas Lesaffre 🌱
How does stochasticity in learning impact the accumulation of knowledge and the evolution of learning? https://www.biorxiv.org/content/10.1101/2025.08.26.672373v1
August 27, 2025 at 8:32 AM
How does stochasticity in learning impact the accumulation of knowledge and the evolution of learning? https://www.biorxiv.org/content/10.1101/2025.08.26.672373v1
Reposted by Thomas Lesaffre 🌱
Pre-print now out on bioRxiv! If you saw my talk at #eseb and want more info, here it is:
Growth effects and the underlying genetic architecture of inbreeding depression in a wild raptor https://www.biorxiv.org/content/10.1101/2025.08.17.670740v1
August 25, 2025 at 7:42 AM
Pre-print now out on bioRxiv! If you saw my talk at #eseb and want more info, here it is:
My poster P02.385 is now up on its board! Come say hi if you want to learn about the role of sexual conflict in transitions from combined to separate sexes is plants! 🌱 #ESEB2025
Delighted to have our work on the joint emergence of dioecy and sexual dimorphism be part of this wonderful special issue!
I will be presenting this at @eseb2025.bsky.social in a couple of weeks, poster P02.385 on Aug 19th. Feel free to pop by! ☺️
I will be presenting this at @eseb2025.bsky.social in a couple of weeks, poster P02.385 on Aug 19th. Feel free to pop by! ☺️
NEW SPECIAL ISSUE JUST RELEASED!
Sex unfolded: sex, asex, sexes. Read the introductory editorial by Guest Editors D. Roze, S Glemin, @thomaslenormand.bsky.social & K. Van Doninck here: academic.oup.com/jeb/issue/38/7
Fantastic cover art by Caroline Blanc.
Sex unfolded: sex, asex, sexes. Read the introductory editorial by Guest Editors D. Roze, S Glemin, @thomaslenormand.bsky.social & K. Van Doninck here: academic.oup.com/jeb/issue/38/7
Fantastic cover art by Caroline Blanc.
August 19, 2025 at 8:21 AM
My poster P02.385 is now up on its board! Come say hi if you want to learn about the role of sexual conflict in transitions from combined to separate sexes is plants! 🌱 #ESEB2025
Delighted to have our work on the joint emergence of dioecy and sexual dimorphism be part of this wonderful special issue!
I will be presenting this at @eseb2025.bsky.social in a couple of weeks, poster P02.385 on Aug 19th. Feel free to pop by! ☺️
I will be presenting this at @eseb2025.bsky.social in a couple of weeks, poster P02.385 on Aug 19th. Feel free to pop by! ☺️
NEW SPECIAL ISSUE JUST RELEASED!
Sex unfolded: sex, asex, sexes. Read the introductory editorial by Guest Editors D. Roze, S Glemin, @thomaslenormand.bsky.social & K. Van Doninck here: academic.oup.com/jeb/issue/38/7
Fantastic cover art by Caroline Blanc.
Sex unfolded: sex, asex, sexes. Read the introductory editorial by Guest Editors D. Roze, S Glemin, @thomaslenormand.bsky.social & K. Van Doninck here: academic.oup.com/jeb/issue/38/7
Fantastic cover art by Caroline Blanc.
Volume 38 Issue 7 | Journal of Evolutionary Biology | Oxford Academic
Journal of Evolutionary Biology
academic.oup.com
August 4, 2025 at 1:14 PM
Delighted to have our work on the joint emergence of dioecy and sexual dimorphism be part of this wonderful special issue!
I will be presenting this at @eseb2025.bsky.social in a couple of weeks, poster P02.385 on Aug 19th. Feel free to pop by! ☺️
I will be presenting this at @eseb2025.bsky.social in a couple of weeks, poster P02.385 on Aug 19th. Feel free to pop by! ☺️
Reposted by Thomas Lesaffre 🌱
NEW SPECIAL ISSUE JUST RELEASED!
Sex unfolded: sex, asex, sexes. Read the introductory editorial by Guest Editors D. Roze, S Glemin, @thomaslenormand.bsky.social & K. Van Doninck here: academic.oup.com/jeb/issue/38/7
Fantastic cover art by Caroline Blanc.
Sex unfolded: sex, asex, sexes. Read the introductory editorial by Guest Editors D. Roze, S Glemin, @thomaslenormand.bsky.social & K. Van Doninck here: academic.oup.com/jeb/issue/38/7
Fantastic cover art by Caroline Blanc.
Volume 38 Issue 7 | Journal of Evolutionary Biology | Oxford Academic
Journal of Evolutionary Biology
academic.oup.com
August 4, 2025 at 10:21 AM
NEW SPECIAL ISSUE JUST RELEASED!
Sex unfolded: sex, asex, sexes. Read the introductory editorial by Guest Editors D. Roze, S Glemin, @thomaslenormand.bsky.social & K. Van Doninck here: academic.oup.com/jeb/issue/38/7
Fantastic cover art by Caroline Blanc.
Sex unfolded: sex, asex, sexes. Read the introductory editorial by Guest Editors D. Roze, S Glemin, @thomaslenormand.bsky.social & K. Van Doninck here: academic.oup.com/jeb/issue/38/7
Fantastic cover art by Caroline Blanc.
Reposted by Thomas Lesaffre 🌱
The evolution of tandem repeat sequences under partial selfing and different modes of selection https://www.biorxiv.org/content/10.1101/2025.07.04.663195v1
July 8, 2025 at 5:32 AM
The evolution of tandem repeat sequences under partial selfing and different modes of selection https://www.biorxiv.org/content/10.1101/2025.07.04.663195v1
Reposted by Thomas Lesaffre 🌱
PhD fellowship available 📢!
We are offering a 3-year fully funded PhD fellowship at the interface between functional ecology and quantitative genetics in Montpellier FR ! (Application deadline 31 July)
We are offering a 3-year fully funded PhD fellowship at the interface between functional ecology and quantitative genetics in Montpellier FR ! (Application deadline 31 July)
July 7, 2025 at 2:29 PM
PhD fellowship available 📢!
We are offering a 3-year fully funded PhD fellowship at the interface between functional ecology and quantitative genetics in Montpellier FR ! (Application deadline 31 July)
We are offering a 3-year fully funded PhD fellowship at the interface between functional ecology and quantitative genetics in Montpellier FR ! (Application deadline 31 July)
Reposted by Thomas Lesaffre 🌱
The evolution of sex-specific gene expression in polygenic traits
@ewanflintham.bsky.social
doi.org/10.1093/jeb/...
@ewanflintham.bsky.social
doi.org/10.1093/jeb/...
The evolution of sex-specific gene expression in polygenic traits
Abstract. Selection often favours different phenotypes in males and females, driving the evolution of sex-specific genetic architectures that facilitate se
doi.org
July 4, 2025 at 4:51 PM
The evolution of sex-specific gene expression in polygenic traits
@ewanflintham.bsky.social
doi.org/10.1093/jeb/...
@ewanflintham.bsky.social
doi.org/10.1093/jeb/...
Reposted by Thomas Lesaffre 🌱
Interested in the evolution of molecular interactions ? We are recruiting a new PhD student with a background in proteomics to study the diversification of the receptor-ligand interaction controlling plant self-incompatibility.
--> details here : initiative-excellence.univ-lille.fr/fileadmin/us...
--> details here : initiative-excellence.univ-lille.fr/fileadmin/us...
June 19, 2025 at 10:11 AM
Interested in the evolution of molecular interactions ? We are recruiting a new PhD student with a background in proteomics to study the diversification of the receptor-ligand interaction controlling plant self-incompatibility.
--> details here : initiative-excellence.univ-lille.fr/fileadmin/us...
--> details here : initiative-excellence.univ-lille.fr/fileadmin/us...
Reposted by Thomas Lesaffre 🌱
Sexual antagonism, mating systems, and recombination suppression on sex chromosomes https://www.biorxiv.org/content/10.1101/2025.05.15.654257v1
May 19, 2025 at 7:32 PM
Sexual antagonism, mating systems, and recombination suppression on sex chromosomes https://www.biorxiv.org/content/10.1101/2025.05.15.654257v1
Reposted by Thomas Lesaffre 🌱
Reposted by Thomas Lesaffre 🌱
Avec vos blagues de papes, on pourrait en avoir un de chez moi, comme ça le pape est Vaudois.
April 23, 2025 at 11:33 AM
Avec vos blagues de papes, on pourrait en avoir un de chez moi, comme ça le pape est Vaudois.
Reposted by Thomas Lesaffre 🌱
Applications now open for UNIL Summer School on Modelling for Evo Bio (1–6 Sept 2025, Lausanne)!
Aimed at PhD students interested in formal approaches to evolutionary ecology questions like sexual selection, social & life-history evolution. Scholarships available.
Pls share! www.shorturl.at/znk5g
Aimed at PhD students interested in formal approaches to evolutionary ecology questions like sexual selection, social & life-history evolution. Scholarships available.
Pls share! www.shorturl.at/znk5g
April 17, 2025 at 3:21 PM
Applications now open for UNIL Summer School on Modelling for Evo Bio (1–6 Sept 2025, Lausanne)!
Aimed at PhD students interested in formal approaches to evolutionary ecology questions like sexual selection, social & life-history evolution. Scholarships available.
Pls share! www.shorturl.at/znk5g
Aimed at PhD students interested in formal approaches to evolutionary ecology questions like sexual selection, social & life-history evolution. Scholarships available.
Pls share! www.shorturl.at/znk5g
Reposted by Thomas Lesaffre 🌱
1/7 Cumulative culture/knowledge occurs when information builds up across generations through a combination of innovation and transmission. In our new paper, we investigate the role of teaching and its coevolution with learning in this process.
🔗 doi.org/10.1098/rspb...
🔗 doi.org/10.1098/rspb...
March 1, 2025 at 7:41 AM
1/7 Cumulative culture/knowledge occurs when information builds up across generations through a combination of innovation and transmission. In our new paper, we investigate the role of teaching and its coevolution with learning in this process.
🔗 doi.org/10.1098/rspb...
🔗 doi.org/10.1098/rspb...