Job alert! Post-doc position available in the Tsutsui lab at UC Berkeley. I'm specifically looking for someone optimize and scale RNA interference for invasive ant control and eradication. Happy to take questions at [email protected]. Spread the word! aprecruit.berkeley.edu/JPF05325

Our paper is out in @Science! The Atlantic silverside spans Earth's steepest latitudinal gradient in coastal sea-surface temperature. Despite high gene flow, populations show clinal genetic variation in multiple locally adapted traits. doi.org/10.1126/scie...

Queen-only parasitic parthogenetic ant. Cool combination! www.cell.com/current-biol...

Thomas et al. reveal that positively selected and differentially expressed hippocampal genes cluster near breakpoints in shrews, tying chromosomal rearrangements and accessible chromatin to adaptation and brain size plasticity. 🔗 doi.org/10.1093/molbev/msag006 📷 Christian Ziegler #evobio #molbio

Check out our paper on the neo-sex chromosomes in mountain pine beetle! We assembled THREE neo-Ys that are quite distinct and their corresponding neo-Xs .

Lethal epistasis maintains strong linkage disequilibrium between unlinked supergenes https://www.biorxiv.org/content/10.64898/2026.01.08.698410v1

New work from @miyapan.bsky.social and our team, bringing ant, bee, and wasp labs together. @chuanxinyu.bsky.social shows that the ANTSR locus we discovered in ants has determined sex for 150+ My across bees and stinging wasps 🐜🐝, despite virtually no sequence conservation 😮 doi.org/10.1073/pnas...

ANTSR seems to be the ancient master sex determining gene in Hymenoptera (as suggested by Pan et al. 2024)! So rad that a lncRNA is doing this! www.biorxiv.org/content/10.6...

New in @currentbiology.bsky.social "Genomic evidence of a complex supergene system linking dispersal to social polymorphism" #Myrmecina_graminicola Mona,S., Gay,E.J., Ducancel,J., Laso-Jadart,R., Chifflet-Belle, P., Doums,C. @isyeb.mnhn.fr @ephe-psl.bsky.social et al. 🐜 www.cell.com/current-biol...

🧬🧬 A human supergene 🧬🧬 www.biorxiv.org/content/10.1...

#Haplodiploid inheritance is found in all species of #Hymenoptera. @mwbstr.bsky.social &co map the #sex determining #gene of the red mason #bee to the ANTSR gene region, suggesting a shared, ancient origin of #SexDetermination in bees & ants >150 Mya ago @plosbiology.org 🧪 plos.io/47COEtH

2 year postdoc position in evolutionary genomics at University of California, Riverside in the Purcell Lab! 🧬🐜

How many chromosomes can an animal have? In our paper out now in @currentbiology.bsky.social we show that the Atlas blue butterfly has 229 chromosome pairs- the highest in diploid Metazoa! These arose by rapid autosome fragmentation while sex chromosomes stayed intact. www.cell.com/current-biol...

ggplot2 ethusiasts, new update just dropped! 🔥🔥🔥

I am beyond excited to announce that ggplot2 4.0.0 has just landed on CRAN. It's not every day we have a new major #ggplot2 release but it is a fitting 18 year birthday present for the package. Get an overview of the release in this blog post and be on the lookout for more in-depth posts #rstats

A common type of ant in Europe breaks a fundamental rule in biology: its queens can produce male offspring that are a whole different species go.nature.com/4mOb5T9

Check out our latest preprint in Formica ants! We investigate how the sex ratio supergene evolved. We find that a colony-level sex ratio supergene evolved twice! This likely occurred as a result of recombination between the the ancestral queen number supergenes present in Formica. 🧬🐜🧬🐜🧬🐜

Excited to share some of the latest work coming from the Formica ant supergene system 🐜🧬! This project represents many collection trips and years of work! doi.org/10.1101/2025...

Very pleased to see this officially out - Genome Architecture and Speciation in Plants and Animals. With @siluwang.bsky.social, @dortizba.bsky.social and Loren Rieseberg. onlinelibrary.wiley.com/doi/10.1111/...

The #EditorsChoice for this month from EIC @maxreuter.bsky.social is "Unexpected absence of a multiple-queen supergene haplotype from supercolonial populations of Formica ants" by @g-lagunasrobles.bsky.social et al academic.oup.com/jeb/article/...

Is supercoloniality a simple extension of polygyny?Supercolonies, networks of interconnected nests with many queens, have been proposed as a natural extension of multi-queen nests. In many Formica ants, a supergene determines whether a colony has a single queen or many queens. (1/n)

A novel supergene controls queen size and colony social organization in the ant Myrmica ruginodis https://www.biorxiv.org/content/10.1101/2025.03.24.644106v1

Dynamics of a supergene. A study of the BC supergene in wing color morphs of the African monarch #butterfly by @rishidekayne.bsky.social &co reveals dynamic evolution of #supergene haplotypes, fueled by incomplete recombination suppression 🧪 @plosbiology.org plos.io/3DiFhnL

Centromere evolution isn't a sudden switch! Our study shows centromere transitions are a step-by-step process driven by a combination of drift and selection. Discover how the kinetochore interface shapes this gradual change in our new preprint 🥳 doi.org/10.1101/2025.01.16.633479 🧵(1/8)

🦉🧪 Questions about high latitude myrtle warblers have been "up in the air" (pun intended) since 1899! @stephszarmach.bsky.social used fancy new geolocators that track light AND barometric pressure to add an unexpected chapter to this tale ......

Our preprint on the unexpected absence of a multiple-queen supergene haplotype in supercolonial populations is up on bioRxiv! We found that the P haplotype is not necessary for supercoloniality in the Formica rufa group, despite its longstanding association with non-supercolonial polygyny.

Happy to release Stacks v2.67 today. This release updates process_radtags to make it easier to use SRA data and to filter poly-G (error) runs coming from Nextseq/Novaseq machines + bugfixes. We also added a genotype depth filter to populations #RADseq catchenlab.life.illinois.edu/stacks/

New article: 'The role of conflict in the formation and maintenance of variant sex chromosome systems in mammals' 🔬 From fusions to Y chromosome loss, sex chromosome karyotypes vary widely in mammalian genomes. 1/3

With a link that works 😊

Hey ya'll. Our paper on the phenotypic consequences of intraspecific variation in repeat content and genome size was published over the holidays. Check it out when you get back to work :) journals.plos.org/plosgenetics...

Excited to share the first paper from my postdoc, using phylogenomics to uncover dynamic genome evolution in Rumex! Featuring @joannarifkin.bsky.social, @bmsacchi.bsky.social, @stepheniwright.bsky.social, and others not on the app! www.biorxiv.org/content/10.1...

Posting for my colleague Giulia Scarparo and collaborators. Check out their new paper on a supergene that controls for queen miniaturization! Giulia's post attached below. Paper here: www.cell.com/current-biol...

Steph Szarmach discusses her geolocator work on Alaskan Myrtle warblers! *Spoiler alert*: there are no spoilers! wilsonsociety.org/2023/11/07/g...

Super happy to be awarded a project grant for our Linum supergene and mating system work from the Swedish Research Council, AND a Formas grant on unlocking genetic variation for drought tolerance using landscape genomics in crop wild relatives!

Mitonuclear sex determination? Empirical evidence from bivalves. academic.oup.com/mbe/advance-...

New from @snaildit.bsky.social and me. We find that popular methods for detecting introgression between sister species (fastsimcoal2, dadi, BPP) all have high false positive rates in biologically realistic settings. www.biorxiv.org/content/10.1...

Our new paper on the genomic vulnerability of climate change in Kokanee (resident ecotype of sockeye salmon) is out today doi.org/10.1111/eva.... We packed a lot of questions in this paper, and there is something for every taste: climate change, adaptive potential, heat waves,

Want to use landscape genomics for conservation? Curious about how to apply these methods to individual-based sampling? Not to worry– use algatr! Our new paper w/ co-first author @anushabishop.bsky.social and coauthor Ian Wang is out in MER! More below ⬇️ #OA onlinelibrary.wiley.com/doi/10.1111/...

A polygenic explanation for Haldane’s rule in butterflies www.pnas.org/doi/abs/10.1...

I have been having a lot of fun revising private allele analysis in #Stacks from #RADseq data. What are private alleles? Given SNPs in a set of populations, a private allele is found only in a specific population. 1/n

Continuously fluctuating selection reveals extreme granularity and parallelism of adaptive tracking https://www.biorxiv.org/content/10.1101/2023.10.16.562586v1