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Joelle Lafond, PhD

@joellelafond.bsky.social
880 followers 112 following 18 posts

FRQ Postdoctoral Fellow at the University of Toronto (Canada) in Stephen Wright's Lab! Reproductive Modes (sexual/asexual/more) & Genome Evolution 🧬 in animals🐟🐠 and plants🌿🌼. Website: joellelafond.github.io

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Reposted by Joelle Lafond, PhD
Judith Mank @judithmank.bsky.social · 23/09/2026
So very, very happy to see this out @plosbiology.org : Ancient inversion polymorphisms associate with sexually selected traits across natural guppy populations. Beautiful work by two very clever and talented coauthors, Yuying Lin and @vdbijl.bsky.social . journals.plos.org/plosbiology/... 1/
journals.plos.org
Ancient inversion polymorphisms associate with sexually selected traits across natural guppy populations
Genomic inversions spanning many genes can persist for millions of years. This study of Trinidadian guppy populations reveals how both ecological conditions and mate choice help maintain this hidden l...
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Reposted by Joelle Lafond, PhD
Graham Coop @gcbias.bsky.social · 10/09/2026
I’m looking to hire an NIH funded postdoc to join our lab here at Davis (please RT). Ongoing areas of interest include: 1) polygenic signals of selection from time series, ARGs, GWAS, etc 2) The interpretation of GWAS, polygenic scores, & sources of confounding
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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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Daniel Bolnick @danielbolnick.bsky.social · 05/09/2026
Men are more likely to accept invitations to review a paper in Ecology and Evolution when the *editor* inviting them is male. Women’s response rate is unaffected onlinelibrary.wiley.com/doi/full/10....
onlinelibrary.wiley.com
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Molly Schumer @mollyschumer.bsky.social · 03/09/2026
Help needed! Does anyone know of a lab that has glass (pigmentless) guppies? We are interested in getting them for a project
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John Stinchcombe @johnstinchcombe.bsky.social · 18/08/2026
My current opinion of journal publishers offering an AI chatbot about papers... side-eye'ing Wiley journals.
image of me asking an AI chatbot how to turn it off, and it not being able to answer.
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Reposted by Joelle Lafond, PhD
Colin Carlson @colincarlson.bsky.social · 10/08/2026
I wrote about a reason not to use generative AI in your writing that I haven't seen anyone talking about. Once I realized this, banning GenAI in our lab's writing became a no-brainer. Feel free to share, I think this is probably useful especially for trainees: www.carlsonlab.bio/thoughts/the...
carlsonlab.bio
The only reason you’ll ever need not to write with AI — The Carlson Lab
Over the last year, our lab has been developing a policy on AI use. To do this, we did three main things: We read a lot of academic publications and tech news. We set up an #ai channel on our la...
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Dr. Carly Kenkel @drcarl.bsky.social · 03/06/2026
The list of Ecology/Evolution/Marine Bio Labs recruiting grad students for Fall 2027 is live! PIs enter your position info here: forms.gle/MAGd4ohyPeoY... students (and PIs not recruiting) share the composite list: docs.google.com/spreadsheets... Please share widely! 🧪
forms.gle
Ecology/Evolution/Marine Biology labs recruiting for Fall 2027
Please complete this form if you are a PI recruiting graduate students for a Fall 2027 start. If you are NOT recruiting, feel free to share the response sheet with prospective students looking for lab...
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Gideon Bradburd @gbradburd.bsky.social · 29/05/2026
postdoc alert 🚨! NIH-funded postdoc in my lab to work on Ancestral Recombination Graphs in space. Please spread the word widely in your networks, and please reach out if you're interested! (2-3yr position, start date flexible, pay/benefits good!). details here: careers.umich.edu/job_detail/2...
genescape.org
recruitment
Multiple positions available: ​ Postdoc PhD students
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Joelle Lafond, PhD @joellelafond.bsky.social · 12/05/2026
Want to learn more about the pace of sex chromosomes evolution in a young system? Then come see my presentation about guppies this afternoon! 🐟 📍BA-2185, 4h30 pm. And stay tuned for @squarehare.bsky.social's talk right after mine! #CSEE2026
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Reposted by Joelle Lafond, PhD
Lydia Fong @squarehare.bsky.social · 11/05/2026
Come see my talk on guppy sex chromosome evolution at the Fish 3 session on Tuesday at #CSEE2026! Back-to-back with @joellelafond.bsky.social !
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Reposted by Joelle Lafond, PhD
Judith Mank @judithmank.bsky.social · 11/05/2026
Mankees are headed to #CSEE2026! Check out @squarehare.bsky.social's and @joellelafond.bsky.social's talks about Poecilia sex chromosomes, and @vdbijl.bsky.social's talk about evolutionary repeatability of male colour.
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Joelle Lafond, PhD @joellelafond.bsky.social · 27/04/2026
🚨 My very first postdoc paper is out! 🐠 We show that the Y chromosome of the swamp guppy (Poecilia picta) has rapidly degenerated, losing genes, shrinking, and filling up with transposable elements, while the X responds by exporting key male genes to autosomes. 🧵⬇️ 1/6 📷Joëlle Lafond
Figure showing the paper's title: Structural and Functional Divergence of the Poecilia picta Sex Chromosomes.

It includes artistic drawing of the male fish of this study, Poecilia picta, on a background with DNA helixes.
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Reposted by Joelle Lafond, PhD
Judith Mank @judithmank.bsky.social · 02/04/2026
We’ve been talking in our lab meetings about sexual conflict and sexual dimorphism, and have some thoughts. What if animal genomes are far more sex-specific and less cosntrained than we assume? @linley-sherin.bsky.social pulled it all together here www.zoology.ubc.ca/mank-lab/pdf... 1/n
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Reposted by Joelle Lafond, PhD
Jérôme Burkiewicz @jeromeburkiewicz.bsky.social · 31/03/2026
🚨 My first first-authored paper is out in @evolletters.bsky.social 🌆🏵️ Urbanization changed the pollinator community and flower morphology of Impatiens capensis. 🐝 The size of bumblebees—the main pollinators—correlated with sepal size, driving selection for larger sepals in urban populations. 🧵⬇️
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Evolution Letters @evolletters.bsky.social · 30/03/2026
Urban habitats reshape pollinator communities and flowers respond: jewelweed sepal size evolves via plastic and genetic changes. By @jeromeburkiewicz.bsky.social @simjoly.bsky.social doi.org/10.1093/evle... image credit Wim Rubers @Wikimedia
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Reposted by Joelle Lafond, PhD
Sam Price @evovert.bsky.social · 15/12/2025
🧪🐠 I am hiring a postdoc! Work will be on patterns of biodiversity across phylogenetic scales using teleost fishes as a model. Apply by end of Jan 2026 for full consideration apply.interfolio.com/179070 I encourage folks to reach out with any questions. Please Share!
apply.interfolio.com
Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio
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Rike Stelkens @stelkens.bsky.social · 15/12/2025
We're looking for a new colleague at Asssoc Prof level! Come join us in the Zoology Department at Stockholm University. A teaching profile in ecology, faunistics and/or physiology is beneficial. Find the full job advertisemnt here: su.varbi.com/en/what:job/...
su.varbi.com
Associate Professor in Zoology with focus on ecology and evolution
Department of Zoology  at Stockholm University includes ca. 80 employees counting researchers, PhD students, and administrative staff. Research and education at the department occurs in an internatio
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Reposted by Joelle Lafond, PhD
Judith Mank @judithmank.bsky.social · 03/11/2025
We have TWO post-doctoral fellowships in the Biodiversity Centre at UBC next year! Am happy to chat if you might want to be hosted in my lab. biodiversity.ubc.ca/training-and... Deadline January 15th!
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Department of Biology, Lund University @biologylu.bsky.social · 22/10/2025
Exiting career-boosting opportunity for a a skilled and highly motivated postdoctoral researcher: We're hiring a Post-doctoral fellow in Evolutionary Biology! Please apply no later than 31 October! lu.varbi.com/en/what:job/...
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Reposted by Joelle Lafond, PhD
Judith Mank @judithmank.bsky.social · 20/08/2025
Just in time for her #eseb2025 poster on Thursday, @squarehare.bsky.social 's paper on the Poecilia bifurca sex chromosomes was published today academic.oup.com/g3journal/ad...
academic.oup.com
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Reposted by Joelle Lafond, PhD
Judith Mank @judithmank.bsky.social · 14/08/2025
I’m really sorry to be missing #eseb2025, but for those sorting out their conference plan there are several lab talks and posters about what we are up to. Spoiler, they aren't all talking about guppies, or even fish! 1/n
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Reposted by Joelle Lafond, PhD
UBC Science @science.ubc.ca · 08/07/2025
“Previously, people thought perhaps males realized that if they were more orange, they were more sexy,” explains Dr. Judith Mank of @zoology.ubc.ca. www.karmactive.com/male-guppies...
karmactive.com
Male Guppies With Orange Spots 2X More Sexually Active Than Dull Males, UBC Study Finds - Karmactive
Orange male guppies perform sexual displays twice as long and attempt mating 200% more than dull males. UBC scientists link bright coloration to brain development in genetic breakthrough study.
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Joelle Lafond, PhD @joellelafond.bsky.social · 08/07/2025
Interested in sex chromosomes evolution and want to wrap up today’s talks on a colorful note? Come see my presentation on guppy sex chromosomes today, July 8th! 🐠 #CSEE2025 ⌚16h15, 📍 Lac Memphrémagog
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Reposted by Joelle Lafond, PhD
Jérôme Burkiewicz @jeromeburkiewicz.bsky.social · 08/07/2025
Hey #CSEE2025 interested in flowers, natural selection, urbanization or any combination of the three? I’m presenting results of my thesis at 11am today in the urban ecology session (Rivière Coaticook)
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Reposted by Joelle Lafond, PhD
Simon Joly @simjoly.bsky.social · 08/07/2025
You have to come and see the talk of @jeromeburkiewicz.bsky.social that will test if urbanization affects natural selection by pollinator on flower shape. #CSEE2025 It is at 11:00 in Rivière Coaticook
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Joelle Lafond, PhD @joellelafond.bsky.social · 16/06/2025
Amazing work from Jérôme Burkiewicz! A fascinating look at how urbanization shapes pollinator communities and flower traits across multiple cities, and natural vs. controlled settings. This study reveals both plastic and genetic responses to urbanization in Southeastern Canada—go check it out!
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Joelle Lafond, PhD @joellelafond.bsky.social · 06/05/2025
Je suis heureuse d’annoncer l’obtention d’une bourse postdoctorale du FRQ pour mon projet sur les conséquences de la perte de recombinaison génétique chez les guppys, dans le labo de Judith Mank (UBC)! Je présenterai ces travaux au #SCEE2025 à Sherbrooke cet été – au plaisir de vous y voir!
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Reposted by Joelle Lafond, PhD
Philip Leftwich @philipleftwich.bsky.social · 15/11/2024
Probably don't have the reach on here yet - BUT: I have a fully-funded four year PhD studentship available - the deadline is soon - November 25th - so please share if you can. And let's connect if you are interested in #genedrive #pestcontrol #evobio biodtp.norwichresearchpark.ac.uk/projects/new...
biodtp.norwichresearchpark.ac.uk
New strategies for pest insect control by population suppression | Doctoral Training Partnership
CHAPMAN_U25DTP1
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Daniel Bolnick @danielbolnick.bsky.social · 14/11/2024
Fish biologists (or aspiring ones!): There is a #stickleback stock center @uconn that supplies egg or adult stickleback (fees help cover operating costs). Check us out at www.sticklestock.com (The website also has lots of protocols to help new researchers get started)
sticklestock.com
Stickleback stock center
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Reposted by Joelle Lafond, PhD
Evolution Meetings @evolmtg.bsky.social · 15/02/2024
It’s the moment we’ve all been waiting for…registration for the 3rd Joint Congress on Evolutionary Biology is open! We hope that you will join us! #Evol2024 @sse-evolution.bsky.social @asn-amnat.bsky.social @eseb.bsky.social
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Dr. Andrea Wishart @wishartae.bsky.social · 05/02/2024
Prof. Marc Johnson, chair of the board of @supportourscience.bsky.social (of which I am a member) has just penned this commentary in @theglobeandmail.com: Stagnant investments in training and research compromise Canada’s economic growth #SupportOurScience www.theglobeandmail.com/business/com...
theglobeandmail.com
Opinion: Stagnant investments in training and research compromise Canada’s economic growth
Canada invests just 1.55 per cent of gross domestic product in research and development, which pales in comparison to peer countries
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Reposted by Joelle Lafond, PhD
Judith Mank @judithmank.bsky.social · 26/01/2024
Updated and expanded version of @vdbijl.bsky.social 's analysis of the inheritance of male coloration in guppies is now up! www.biorxiv.org/content/10.1... Deep learning reveals the role of copy number variation in the genetic architecture of a highly polymorphic sexual trait
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Joelle Lafond, PhD @joellelafond.bsky.social · 23/01/2024
New paper alert! ✨ Mothers dictating how to reproduce? How weird! In a hybrid fish, however, that is the reality! Check how maternal ploidy governs gonadal development into producing either sexual or asexual oocytes, all that in our new paper linked below! t.ly/hSUX8
Cycle of reproduction of the hybrid C. eos x eos-neogaeus as we now know it, where maternal ploidy dictate whether the progeny reproduces sexually or asexually.
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Joelle Lafond, PhD @joellelafond.bsky.social · 04/12/2023
Magnificent scene in Montreal this morning ❄️☃️
Trees buried under the snow in a cityTrees and cars buried under the snow in a cityTrees buried under the snow in a city.
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Martin Turcotte @exp-evoeco.bsky.social · 04/10/2023
Dr. Tia-Lynn Ashman and I (Univ. of Pittsburgh) are also looking to co-advise a Ph.D. student to study the ecological and evolutionary impacts of whole genome duplication (polyploidy) using our duckweed polyploids. Details: tinyurl.com/5dvatu4c
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