Sperm can “age” independently of the male, when stored in male or female reproductive tracts. Our meta-analysis finds widespread evidence across animals (including abstinence in men). Important consequences for fertility, sexual selection, haploid selection! doi.org/10.1098/rspb...

Very excited to announce our new review accepted at Phil. Trans. B. (in press)! This project started after a journal club I presented this time last year (!) sparked some lab discussions and it's been so much fun seeing it become a paper. Big thanks to all my co-authors for making it happen :)

I wrote a little bit about the "missing heritability" question and several recent studies that have brought it to a close. A short 🧵

Team fish - we need your help! We are trying to build a database of all the fish chromosome-scale genomes where sex chromosomes have been identified. Have you build one or some? Do you know someone who has? Can you post the link in the comments? Please spread the word and repost! Thank you!

I am so excited to share new work on a TE insertion that regulates iridescence in swordtails, led by fantastic grad student @nadiahaghani.bsky.social and with help from many coauthors! In a time that has been so difficult to navigate, this & other projects have kept my spirits up: shorturl.at/NE65A

Myself and Alastair Wilson wrote an updated version of our 2016 primer to quantitative genetics in the wild: www.sciencedirect.com/science/arti.... Happy to share a copy if interested. It is also on research gate

📢 NEW GENOME ALERT In #G3journal, @squarehare.bsky.social, @judithmank.bsky.social, and team generated a genome assembly of the Amazon guppy, Poecilia bifurca and showed how this species shares sex chromosomes with related species, albeit with substantial Y chromosome degeneration. buff.ly/lM7etkw

Hybridogenesis as an intermediate step between sexual reproduction and parthenogenesis https://www.biorxiv.org/content/10.1101/2025.09.19.677091v1

🚀 Check out our new review article “From Tiny Exons to Big Insights: The Expanding Field of #Microexons” now out in Annual Review of Genomics and Human Genetics! doi.org/10.1146/annu... Special thanks to @mirimiam.bsky.social, @crg.eu and @upf.edu!

"The main fates after gene duplication are gene loss, redundancy, subfunctionalization and neofunctionalization". In our new review, @fedemantica.bsky.social and I argue we are missing the most prevalent one: specialization. And the same applies to alternative splicing! 1/7 tinyurl.com/45k7kbmp

Our paper showing that variation in transcription factor binding sites underlies the majority of additive genetic variance for phenotypic variation in maize is finally out! Sadly they didn't use our suggested cover image below (made by the inimitable Andi Kur). www.nature.com/articles/s41...

Delighted to announce our last review piece on MHC variation in space and time doi.org/10.1002/ece3.... Thanks to @Mette Lillie and Kayla King. Enjoy reading!

Excited for this to be out officially! It was a great team effort and has a lot of useful tidbits for studying isoform function. www.nature.com/articles/s41...

1/13 In a new preprint, we (with @xliaoyi.bsky.social‬ in the ‪@arbelharpak.bsky.social‬ lab) find that expression from the “inactivated” X (Xi) is consequential for both female-male differences in gene expression and variation among females in disease and physiology: www.biorxiv.org/content/10.1...

This preprint from Helen Sakharova is one of the coolest things to come out of my lab: “Protein language models reveal evolutionary constraints on synonymous codon choice.” Codon choice is a big puzzle in how information is encoded in genomes, and we have a new angle. www.biorxiv.org/content/10.1...

Excited to finally have the pre-print up for this work on evolutionary rescue from my PhD at UBC! Previous theoretical work on the effects of negative density-dependent growth on evolutionary rescue has uncovered inconsistent results, leading to an incomplete understanding of its influence.

So happy to share that our paper on guppy colour pattern is out in @natecoevo.nature.com ! Click below for the 🧵 from first author and guppy phenotyping king @vdbijl.bsky.social

Recent studies have revealed unexpected Y chromosome diversity and suggest that the Y may play a big role in evolution. @vdbijl.bsky.social and I wrote this perspective for @evolletters.bsky.social with a few suggestions and requests. academic.oup.com/evlett/advan... Figs by www.jacelyndesigns.com