New paper in Theoretical Population Biology with Laurent Lehmann: “Life history evolution and uninvadable mortality schedules with and without intergenerational energy transfers” 🧵 www.sciencedirect.com/science/arti...
Thomas Lesaffre 🌱
@thomaslesaffre.bsky.social
SNSF Ambizione research fellow at @unifrbiology.bsky.social interested in the theoretical study of plant evolution 🌺. https://thomas-lesaffre.github.io/
🌺 New preprint with J.Pannell and @charlesmullon.bsky.social on the joint evolution of selfing and sex allocation! This joint evolution leads to an unexpected outcome: the emergence of androdioecy, which may either be stable or only a step on the path to complete selfing. 📝 ➡️ tinyurl.com/wf9xsv6v
« Dans une France d'héritiers, les enfants d'ouvriers ou de femmes de ménage n'ont que l'école pour réussir, sauf que lorsqu'ils arrivent dedans, c'est cassé... » @usul2000.bsky.social chroniqueur et vidéaste, La suite : ⏰ 22h50 sur france·tv ➡️ bit.ly/BlocagesEx%C... 🎧en podcast
Very happy to share that the @erc.europa.eu has selected PHYTOPOGON for funding! 😁🌱 In this project, we will test whether plants have greenbeard genes — an evolutionary mechanism that could allow them to recognize the genetic identity of their neighbours.
Check out our new review of the theory on sexual antagonism, soon to appear in Phil. Trans. ⤵️
With @ewanflintham.bsky.social @thomaslesaffre.bsky.social and @sarperotto.bsky.social we've been thinking about what theory tells us about sexual antagonism (SA = when selection favours different trait values in females and males). Our review is here: tinyurl.com/ct5mk8mv
Job opening at @dee-unil.bsky.social 🇨🇭! I have had the privilege to work as a postdoc at the DEE for the last five years. It is a fantastic place to work at, filled with great researchers in an amazing environment surrounded by mountains 🏔️ and beautiful Léman. I highly recommend applying!
Looking for an Associate Prof position? Interested in behavioural ecology & cultural evolution? Come join us at the Dpt of Ecology and Evolution in Lausanne🇨🇭 @dee-unil.bsky.social @unil.bsky.social! Great department & great place to live. Pls RP. Apply here: wwwfbm.unil.ch/releve/appli...
Open position of Associate Professor in Behavioral ecology and cultural evolution at the @dee-unil.bsky.social! You can toggle the ad to English on top right: wwwfbm.unil.ch/releve/appli...
wwwfbm.unil.ch
Avocados come in 2 varieties - A-types start each day female and switch to male midday. B-types do the reverse. In work just published from the last chapter of my PhD, we show this system evolved 40+million yrs ago and is regulated by alleles of 1 transcription factor www.pnas.org/doi/10.1073/...
Balanced polymorphism in a floral transcription factor underlies the ancient rhythm of daily sex alternation in avocado | PNAS
In avocado and certain wild relatives in Lauraceae, a highly synchronized daily rhythm of floral sex timing promotes cross-pollination between two ...
pnas.org
Very happy to share that the work I've been doing with @saramitri.bsky.social is now out on biorxiv! www.biorxiv.org/content/10.6... We broadly ask how are microbial interactions distributed, is there a common shape across datasets, what drives it, and why it matters. Summary thread below 🧵 1/17
Metabolic processes shape microbial interaction distributions
Microbial communities are largely driven by metabolic interactions, whereby species compete for shared resources and exchange byproducts. Such interactions are commonly classified by their sign alone....
biorxiv.org
PhD Position at Uppsala University. Sophie Karrenberg’s Lab. the project is about sex chromosome evolution in plants. Come join us! Deadline 22 July. www.uu.se/en/about-uu/...
PhD position in evolutionary genomics - Uppsala University
PhD position in evolutionary genomics, Department of Ecology and Genetics, Uppsala University
uu.se
🎉 Félicitations aux professeures 𝗦𝗮𝗿𝗮 𝗠𝗶𝘁𝗿𝗶 @saramitri.bsky.social @dmf-unil.bsky.social et 𝗧𝗮𝗻𝗷𝗮 𝗦𝗰𝗵𝘄𝗮𝗻𝗱𝗲𝗿 au Département d’écologie et évolution @fbm-unil.bsky.social @unil.bsky.social qui reçoivent chacune un ERC Advanced Grant @erc.europa.eu 👉 www.unil.ch/news/fr/1781...
Deux ERC Advanced Grants pour la FBM
Les professeures Sara Mitri, au Département de microbiologie fondamentale, et Tanja Schwander, au Département d’écologie et évolution de l’Unil, reçoivent chacune un ERC Advanced Grant de l’European R...
unil.ch
📣🧬 Postdoc Alert🧬📣 We are hiring a 2+ year NERC-funded postdoc at Edinburgh Uni investigating causes and consequences of sex differences in recombination in house sparrows in Norway. Informal enquiries welcome at Susan.Johnston@ed.ac.uk 🙂 Details here: elxw.fa.em3.oraclecloud.com/hcmUI/Candid...
Why do sex chromosomes stop recombining? New models show even weak sexual antagonism can strongly drive recombination suppression, with mating systems shaping the outcome. By @ewanflintham.bsky.social and @charlesmullon.bsky.social doi.org/10.1093/evle...
Sexual antagonism, mating systems, and recombination suppression on sex chromosomes
Abstract. The suppression of recombination between sex chromosomes is a widespread feature of genetic sex determination systems. Competing explanations for
doi.org
New paper with the brilliant @ewanflintham.bsky.social How fast does recombination suppression evolve among sex chromosomes? We show that even weak sexual antagonism (so hard to detect) makes this fast, often via inversions fixing on X/Z depending on mating system: doi.org/10.1093/evle...
1 week left to apply for scholarships ! If you are based at an institution in an ODA recipient country (e.g. Brazil, South Africa, India, Mexico; full list: tinyurl.com/5dv7vvs8), you can get all expenses covered to attend the summer school in Lausanne for a week.
Applications now open for the UNIL Summer School on Modelling for Evolutionary Biology (31 Aug–5 Sep 2026, Lausanne)! For PhD & postdocs interested in formal approaches to evolutionary ecology (incl. social evo, life-history, species interactions). Scholarships available, Pls RP! shorturl.at/fo1GA
Ever wondered what makes some alleles dominant (A) and others recessive (a) ? In our new paper, we explored how a series of recently discovered "dominance modifiers", genetic elements that have long remained elusive, achieve their regulatory function. journals.plos.org/plosgenetics...
Dominance modifiers at the Arabidopsis self-incompatibility locus retain proto-miRNA features and act through non-canonical pathways
Author summary Many plants avoid self-fertilization through a system of self-incompatibility, which allows them to recognize and reject their own pollen. In plants like those in the Arabidopsis family...
journals.plos.org
Applications now open for the UNIL Summer School on Modelling for Evolutionary Biology (31 Aug–5 Sep 2026, Lausanne)! For PhD & postdocs interested in formal approaches to evolutionary ecology (incl. social evo, life-history, species interactions). Scholarships available, Pls RP! shorturl.at/fo1GA
So happy to see the 2nd chapter of my PhD out! doi.org/10.1093/evol... Here, we studied populations sampled from their local elevational edges and centers on mountain slopes, and characterised the variation in G-matrices (comprised of growth and leaf investment traits) among these populations. 1/5
Variation in the genetic architecture of ecologically relevant traits along elevational gradients
Abstract. Species are confined within spatial boundaries, which may be determined by various factors. An understudied one is the genetic non-independence o
doi.org
🌺 PhD position in Theoretical Evolutionary Biology! 🌺 There is about two weeks left to apply to come work with me on the evolution of plant reproductive strategies at @unifr.bsky.social ! Contact me or visit here or for more info: tinyurl.com/monoecy Please share! 🌱
🚨 PhD position available ! 🚨 I am hiring a PhD student to work with me on the evolution of plant sexual systems 🌺 at @unifrbiology.bsky.social ! The position is funded for 4 years by @snsf.ch as part of my Ambizione fellowship. More info here: tinyurl.com/monoecy 🌱 Please RP and share widely ! 🌱
PhD position in Theoretical Evolutionary Biology @ University of Fribourg Deadline: 24 Apr 2026 thomas-lesaffre.github.io/assets/files...
thomas-lesaffre.github.io
🚨 PhD position available ! 🚨 I am hiring a PhD student to work with me on the evolution of plant sexual systems 🌺 at @unifrbiology.bsky.social ! The position is funded for 4 years by @snsf.ch as part of my Ambizione fellowship. More info here: tinyurl.com/monoecy 🌱 Please RP and share widely ! 🌱
PhD position in Theoretical Evolutionary Biology at UFribourg on monoecy in flowering plants. Apply by April 24, 2026. Funded for 4 years, starting September 1, 2026. More info: https://thomas-lesaffre.github.io/ #phd
Thomas Lesaffre
Thomas Lesaffre
thomas-lesaffre.github.io
🚨 PhD position available ! 🚨 I am hiring a PhD student to work with me on the evolution of plant sexual systems 🌺 at @unifrbiology.bsky.social ! The position is funded for 4 years by @snsf.ch as part of my Ambizione fellowship. More info here: tinyurl.com/monoecy 🌱 Please RP and share widely ! 🌱
Come visit us at @unil.bsky.social ! 😃
With @saramitri.bsky.social, @sonjalehtinen.bsky.social and L. Lehmann we’ve launched the UNIL Center for Theory in Ecology and Evolution @unil.bsky.social🇨🇭 To kick things off, we’re offering short visiting fellowships for theorists in ecology & evolution. Apply & pls RP 😀 tinyurl.com/2wem36zz
Come visit us at @unil.bsky.social ! 😃
With @saramitri.bsky.social, @sonjalehtinen.bsky.social and L. Lehmann we’ve launched the UNIL Center for Theory in Ecology and Evolution @unil.bsky.social🇨🇭 To kick things off, we’re offering short visiting fellowships for theorists in ecology & evolution. Apply & pls RP 😀 tinyurl.com/2wem36zz
Many organisms, including humans, reshape their environments in ways that influence the conditions faced by future generations. We ask whether this can favour biological variation with @irisprigent.bsky.social in our new paper. Thanks to @dee-unil.bsky.social @snsf.ch www.pnas.org/doi/full/10....
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
pnas.org
For the MMEE 2026 in Cork www.ucc.ie/en/matsci/ev... note the updated deadline! Submission of talks and poster presentations: March 30th, 2026.
Mathematical Models in Ecology and Evolution | University College Cork
Learn, Study and Research in UCC, Ireland's first 5 star university. Our tradition of independent thinking will prepare you for the world and the workplace in a vibrant, modern, green campus.
ucc.ie
We are offering a fully funded two-year postdoctoral position focused on sex chromosome evolution and speciation in the *Jaera albifrons* species complex. Please find the advertisement attached. We welcome applications from interested candidates. Join us :-)
Our new study is out in @pnas.org ! 🐜🌍 We show that the environment shapes how ant societies are distributed across the world. Accessible here: www.pnas.org/doi/10.1073/...
Environmental conditions shape the global distribution of ant societies | PNAS
Sociality has evolved several times and is a key strategy for overcoming environmental challenges and promoting ecological success. Yet, it remains...
pnas.org