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François Mallard

@francoismallard.bsky.social
55 followers 60 following 0 posts

Researcher in evolutionary ecology at IBENS (Paris) "Experimental Evolutionary Genetics"

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Reposted by François Mallard
Evolution Letters @evolletters.bsky.social · 21/09/2026
Can mothers prepare offspring for an unpredictable future? In C. elegans, adaptive maternal plasticity evolved when a maternal cue reliably predicted the offspring’s environment. academic.oup.com/evlett/advan... By Henrique Teotónio and @evoecodynamics.bsky.social
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Reposted by François Mallard
Joelle Lafond, PhD @joellelafond.bsky.social · 08/09/2026
🚨Our new preprint is out! 🤩 🌟 Mutation rates vary widely across taxa, and decades of research have sought to explain why. ♀️♂️ Reproductive modes, and evolutionary shifts between them, could help explain some of this variation. ❓ So what does the evidence tell us? 👀 Read our preprint to find out!
doi.org
Reproductive mode and the evolution of mutation rate
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Reposted by François Mallard
bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 23/08/2026
Self-fertilization reverses the direction of selection on recombination www.biorxiv.org/content/10.64898/20…
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Reposted by François Mallard
Haoran Cai @haorancai.bsky.social · 25/06/2026
New paper out @pnas.org: We explore why fly wings evolve along "lines of least resistance" and reconcile the "rate paradox" between population variation and divergence. Check out how a low dimensional model of selection on size explains it all: www.pnas.org/doi/full/10....
pnas.org
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...
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Reposted by François Mallard
Arnaud Le Rouzic @arnaudlerouzic.bsky.social · 03/06/2026
Interested in a PhD in Theoretical evolutionary ecology? A position is opened in my lab. "Theoretical and statistical modeling of eco-evolutionary feedback loops from abundance-phenotype time series" Details and application: emploi.cnrs.fr/Offres/Docto...
A simple overview of eco-evo feedback loops: the environment influences the evolution of phenotypes and genotypes, which in turn affect the population density, and thus the environment.
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Reposted by François Mallard
PolyAdapt STN @polyadapt-stn.bsky.social · 25/05/2026
Looking forward to Sam Yeaman's seminar about repeatability of adaptation on Thursday May 28 at 4 pm CET. Join us online!
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Reposted by François Mallard
Maud Tenaillon @maudtenaillon.bsky.social · 03/05/2026
Post 1 🌱📊 New paper out in New Phytologist: we use plant domestication as a replicated natural experiment to study how divergent selection shapes multivariate phenotypic evolution across species. 👤 First author: Arthur Wojcik et al. Phenotype-only framework (no genomic data) doi.org/10.1111/nph....
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Reposted by François Mallard
Arnaud Le Rouzic @arnaudlerouzic.bsky.social · 24/09/2025
Come and join our team! A 2-year postdoc position is available in our "Genome Evolution" department at Univ Paris Saclay. We want to play with phylogenetic models accounting for horizontal transfers of transposable elements. Application& details on the official portal: emploi.cnrs.fr/Offres/CDD/U...
Object: Postdoc Position 

Building a phylogenetic model for horizontal transfers of transposable elements 

A postdoctoral position (24 months) is available to work at EGCE (Gif-sur-Yvette, France, CNRS / Université Paris-Saclay) from January 2026. 

Transposable elements (TEs) are repetitive DNA sequences capable of promoting their own mobility. They are widespread across the tree of life and often represent a substantial fraction of eukaryotic genomes. Beyond their ability to invade genomes, TEs are frequently reported to undergo horizontal transfer, enabling their colonization of new hosts. However, understanding and predicting how horizontal transfers shape the distribution of TEs among species is far from straightforward. In particular, estimates of transfer rates based on documented cases are both biased and approximate, since transfers occurring close to speciation events are virtually undetectable. This project aims to develop explicit phylogenetic models of TE evolution that incorporate horizontal transfers, and to use these models to obtain statistical estimates of key evolutionary dynamics of TE families across species (e.g., horizontal transfer and extinction rates). The postdoctoral project will focus on exploring the impact of horizontal transfers on the distribution of TE presence/absence among related species, using statistical and/or computational approaches. Context

The position will be part of a 4-year collaborative project funded by the French National Agency (ANR). The research consortium gathers two departments (from Paris-Saclay university and from Université Lyon 1), and involves 7 Pls and 5 postdocs and PhD students devoted to distinct workpackages of the project. The postdoc will be based at EGCE, which is part of the Institute for Ecology and Evolution (IDEEV). The institute offers an exciting and active scientific life, it is located on the new research campus of Paris-Saclay, 35 km south of Paris. 

Relevant references

Gilbert C et al. 2018. Horizontal acquisition of transposable elements and viral sequences: patterns and consequences. Cur. Opin. Genet. Dev. 49:15-24.

Le Rouzic A et al. 2013. Reconstructing the Evolutionary History of Transposable Elements. Genome Biol. Evol. 5:77-86.

Wallau GL et al. 2016. VHICA, a New Method to Discriminate between Vertical and Horizontal Transposon Transfer: Application to the Mariner Family within Drosophila. Mol Biol Evol 33:1094-1109.

Profile

We are looking for a motivated early career theoretical biologist, with a PhD in theoretical evolutionary biology. Skills in statistics, programming, bio-informatics, and phylogenetic models will be appreciated.

Application

Formal applications (CV and cover letter) have to be deposited on the CNRS job portal https://emploi.cnrs.fr/Offres/CDD/UMR9191-ARNLER-006/Default.aspx?lang=EN.
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Reposted by François Mallard
Christian Braendle @braendle.bsky.social · 15/09/2025
The Braendle Lab in Nice, France is hiring two postdocs to study nematode genetics, evolution, and ecology. Start Jan–Jul 2026. Deadline Nov 30, 2025. Apply: christian.braendle@univ-cotedazur.fr
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Reposted by François Mallard
Maud Tenaillon @maudtenaillon.bsky.social · 09/09/2025
📢 Postdoc Opportunity – Université Paris-Saclay 🌾🧬💻 Reproductive isolation between crops and their wild relatives Candidates with PhD in evolutionary genomics & programming skills. 👉 Full description & how to apply: [moulon.inrae.fr/en] #Postdoc #EvolutionaryGenomics #Speciation
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Reposted by François Mallard
EvolDir @evoldir.bsky.social · 09/07/2025
A PhD position is open at the Teotónio lab in Paris to study genetic assimilation in C. elegans. Applicants with a master's in evolutionary biology are preferred. Apply by 19 Sept 2025. More info: www.ibens.bio.ens.psl.eu/?rubrique28 #phd
ibens.bio.ens.psl.eu
Henrique Teotónio - IBENS - ENS
Henrique Teotónio - IBENS - ENS
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Reposted by François Mallard
Journal of Evolutionary Biology @jevbio.bsky.social · 22/05/2025
NEW REVIEW! Experimental tests on the evolution of sex and recombination and their adaptive significance Parée and Teotónio doi.org/10.1093/jeb/...
doi.org
Experimental tests on the evolution of sex and recombination and their adaptive significance
Abstract. Sex and recombination generate genetic variation and facilitate adaptation by reducing selective interference, but they can also disrupt allelic
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Reposted by François Mallard
Pierre de Villemereuil @pdevillemereuil.bsky.social · 05/05/2025
There is still a few days to apply to this PhD offer! Come enjoy Paris and the "Jardin des Plantes" at the heart of it, while working on exciting science!
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Reposted by François Mallard
Pierre Baduel @pierrebaduel.bsky.social · 04/03/2025
Interested in the contribution of TEs to the evolution of regulatory pathways in plants? 2-year post-doc position open in URGI in Versailles! jobs.inrae.fr/en/ot-23441 @johannconfais.bsky.social
jobs.inrae.fr
Postdoctoral Scientist in Genomics / Bioinformatics
The laboratoryYou will be working in the Genomics-Info Resources Unit (URGI) at the INRAE Versailles site (https://urgi.versailles.inrae.fr/). This bioinformatics laboratory, which employs around twen...
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Reposted by François Mallard
Maud Tenaillon @maudtenaillon.bsky.social · 26/02/2025
🚨 Applications Open! 🎓 The Master 2 EvoGEM offers training in computational & mathematical modelling to interpret evolutionary mechanisms from genomic data. 📍Taught in English in Paris (MNHN, PSL, Sorbonne Univ., Univ. Paris-Cité & Paris-Saclay) 🔹 Research in leading labs 🔗 Apply now: evogem.fr
evogem.fr
Inter-institutional Master in evolutionary genetics
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Pierre de Villemereuil @pdevillemereuil.bsky.social · 21/01/2025
Excited to share the news that our article on the partition of variance of reaction norm with @lmchev.bsky.social has been recommended by @peercommunityin.bsky.social Evolutionary Biology: 👇🧵 ecoevorxiv.org/repository/v... evolbiol.peercommunityin.org/articles/rec... #phenplas #quantgen
ecoevorxiv.org
Partitioning the phenotypic and genetic variances of reaction norms
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