Thanks to my terrific students and colleagues who nominated me for the #SMBE2026 lifetime achievement award. You make science fun!

We are actively searching for a postdoc to join the lab! Details provided here - johrilab.org/join Please share. I will be at PEQG and will be happy to chat if you're interested!

New from @gvbarroso.bsky.social in our lab: quantifying the relative importance of mutation rate variation and background selection to levels of diversity along the human genome.

Our preprint, where we infer the fitness effects of new mutations in regulatory regions of the D. melanogaster genome. We find an abundance of weakly deleterious effects - www.biorxiv.org/content/10.6... Led by @adaigle.bsky.social .

Population geneticists! Come work at 23andMe! New role just posted. 23andme.wd5.myworkdayjobs.com/23/job/Palo-...

A model for background selection in non-equilibrium populations https://www.biorxiv.org/content/10.1101/2025.02.19.639084v1

Happy International Women’s Day! We are grateful to the incredible women who lead (and have led) the Canadian Society of Ecology and Evolution, & to all the women ecologists & evolutionary biologists across Canada for their important work. You help make our society, country, & planet a better place!

In #GENETICS, Jacob Marsh, Sachin Kaushik, and @johriparul.bsky.social examine why and when rescaling of forward simulations in population genetics is not accurate, identifying pitfalls in simulation methods. buff.ly/wpzDRV9

PEQG! My favorite conference ever*. Single session, fantastic talks, great discussions. Only once every 2 years. And in the best conference location too! Abstract deadline coming up Feb 5! *Disclosure: I am required to say it's the best conference because it is and I told my mom I wouldn't lie.

The last work of my PhD is finally out: www.pnas.org/doi/10.1073/...! This work is about accurately estimating branch length in the Ancestral Recombination Graph (ARG), which is achieved by a really simple framework with minimal assumptions. (1/n)

The SMBE Graduate Student Excellence Award honors the best presentation at the Graduate Student Excellence symposium, which provides a forum for young investigators to showcase their exemplary research at the annual meeting. 📨 Award applications smbe2026.org/abstracts #SMBE2026

We (with Fanny Pouyet and Brian Charlesworth) provide a theoretical perspective on rescaling forward simulations in population genetics, along with some guidelines: arxiv.org/abs/2601.05367

I wrote a short op-ed in @genetics-gsa.bsky.social G3 this month’s issue on missing data problems in population genomics that I’ve been thinking about for a couple of years. Lemme know your thoughts! Comments/suggestions/ideas welcome! doi.org/10.1093/g3jo...

We wrote a perspective piece about important considerations when building an evolutionary baseline model for population genomic inference in the deadliest malaria parasite- Plasmodium falciparum. www.biorxiv.org/content/10.6...

A final new paper out from the lab, work from Steve Johnson, @joannarifkin.bsky.social & @stepheniwright.bsky.social We asked what maintains the striking variation in floral color, size, and shape within and among populations of Dame's Rocket, Hesperis matronalis

I'm on the Board of @biologists.bsky.social. Many know them as publishers of @dev-journal.bsky.social, @jcellsci.bsky.social, @jexpbiol.bsky.social , DMM, and @biologyopen.bsky.social --but they also are a major funder of small grants that empower young biologists and enable scientific meetings 🧪

Happy to highlight an essay I wrote together with @marcdemanuel.bsky.social, @natanaels.bsky.social and Anastasia Stolyarova, trying to think through what sets the mutation rate of a cell type in an animal species: www.biorxiv.org/content/10.6... 1/n

Now accepted in Genetics! academic.oup.com/genetics/adv... We ask why and when rescaling of forward simulations in population genetics is not accurate. There are some interesting results for people performing simulations with selection.

The December episode of Genetics in Your World is now live!🎙️ ECS Multimedia Subcommittee member Debraj Manna interviewed Dr. Matthew Rockman (@wormsrock.bsky.social) of New York University about inbreeding depression in C. elegans. Listen now: buff.ly/7DVBt56

@lntran.bsky.social @castellanoed.bsky.social @ryangutenkunst.bsky.social introduce a systematic permutation approach for interpreting haplotype matrix-based methods in population genomics. 🔗 doi.org/10.1093/molbev/msaf250 #evobio #molbio

The Johri Lab has an open postdoc position. Please send me an email, if interested. Start date is flexible. Please do share! Thank you in advance.

Our latest preprint about the effects of rescaling forward-in-time simulations in population genetics - www.biorxiv.org/content/10.1...

Excited to share my first PhD project with my mentor, @johriparul.bsky.social! We examine how Hill–Robertson interference (HRI) in highly selfing species biases estimates of the distribution of fitness effects of new mutations (DFE). doi.org/10.1093/evol... @journal-evo.bsky.social #popgen #evobio

Short thread on my updated work with @gutengroup.mcb.arizona.edu "Detection of Domestication Signals through the Analysis of the Full Distribution of Fitness Effects", latest version at: www.biorxiv.org/content/10.1... Here we simulate a kind of canonical and idealised domestication process.

Come join us in Tucson!! I am excited to announce a tenure track faculty position on the genomics of resilience @uofa-eeb.bsky.social! Read more about the position in the updated link below! We will begin reviewing applications on December 9! arizona.csod.com/ux/ats/caree...

Nominations due soon for the 2025 Dobzhansky Prize! This award recognizes the accomplishments and future promise of an outstanding early-career evolutionary biologist. Submit your nomination now! https://buff.ly/4fNJk9k