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jesperboman.bsky.social
Evolutionary biologist
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We have a new paper out today, where, among other things, we find evidence that a locally adaptive chromosomal inversion likely trapped an even older inversion along its path to becoming the supergene it is today. onlinelibrary.wiley.com/doi/10.1111/...

Good morning & have a good month! Have a Map 🦋 for March!

We have recently published a paper that provides insights into the relationship between karyotype changes and speciation, a central question in evolutionary biology. doi.org/10.1093/jeb/voaf018 @jevbio.bsky.social

Thrilled to share new work from @stochasnick examining how gene regulatory networks influence quantitative trait evolution! His forward-time simulations reveal fascinating dynamics in the genetic architecture of adaptation. doi.org/10.1101/2025...

Genome architecture and speciation in plants and animals. I learned a lot writing this with @dortizba.bsky.social, Silu Wang and Loren Rieseberg! doi.org/10.22541/au....

📣 New PhD position on flycatchers with @qvarnstromlab.bsky.social — spread the word! Combine bioinformatics, long-term datasets and field work to explore climate adaptation and speciation in the lovely flycatchers. Join us in Uppsala, Sweden! Apply by Mar 18: www.uu.se/en/about-uu/... #ecoevojob

Preprint Alert: Mitonuclear divergence predicts gradual speciation in animal hybrid zone. ecoevorxiv.org/repository/v... With global hybrid zone studies, this paper examined three alternative speciation rate models: Snowball Effect, Additive Linear Effect, and Slowdown Effect. #speciation

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

I am thrilled to share our new review on holocentric chromosomes. It was a lot of fun to write it together with Ines Drinnenberg! Same but different: Centromere regulations in holocentric insects and plants doi.org/10.1016/j.ce...

Do you want to map the loci underlying selection but you're on a budget? Let me introduce you to the concept of sequencing the living and the dead. onlinelibrary.wiley.com/doi/full/10....

My first male Osmia cornuta for 2025. This is one of the bees that has shrunk the most in size over the past few decades. 40 years ago it weighed on average 67 mg, now it has shrunk down to 54 mg, or a ~20%. Fore more details on Cazorla'a shrinking bees see our study here doi.org/10.1002/ecy....

Finally ready to see the world! Theories of balancing selection - past, present and future: www.biorxiv.org/content/10.1... A true collaborative effort that brought together theoreticians and empiricists, models, data, and fresh perspectives on how balancing selection can shape genetic variation.

“a compendium of factual information regarding Ne that is designed as a one-stop, handy reference guide for interested users” … thank you Robin! onlinelibrary.wiley.com/doi/10.1111/...

Join for the 10th virtual seminar in the @eseb.bsky.social Internal Conflicts and Organismal Adaptation STN! Wednesday at 9am Eastern! internalconflictsstn.wordpress.com/seminars-2/

We have a new phylogenomics preprint out with @pflieglerlab.bsky.social and @devinbendixsen.bsky.social on the origin of yeast strains for baking, their origin, and their colonisation of sourdough (and humans! 😱) Let us know what you think!

It’s not the head, it’s the butt! Meet a completely unknown organism: a blow fly (Calliphoridae) that evolved social integration in termite nests using a false termite head in the posterior part of the body. @CurrentBiology www.cell.com/current-biol...

A lack of genetic variation can constrain adaptation, and correlations between trait variability and divergence are testaments of that. But how do we interpret such correlations when they last over many many millions of years? New paper in @natureecoevo.bsky.social with Patrick Rohner. rdcu.be/d8YxG

Check out our new paper, "Isotope geolocation and population genomics in Vanessa cardui: Short- and long-distance migrants are genetically undifferentiated," out in PNAS Nexus! doi.org/10.1093/pnas...

Paper alert! @JesperBoman et al bring empirical evidence for the idea that #chromosome number differences between taxa can contribute to #speciation! onlinelibrary.wiley.com/doi/10.1111/...

Love it.

Visual & social cues can shape a species' behaviour, but is this true in a nonsocial insect? Looking at the wood white butterfly, individuals remained in their patches in the presence of same-sex congeners...a social signal! But why is this interesting? A 🧵(1/2) 🧪🌍🦋 academic.oup.com/bio...

In our latest work, we dive into the benefits and challenges of manual vs. automatic transposable element annotation. Which approach do you prefer?

A couple of months ago I tried the @peercommunityin.bsky.social publishing system & I can only recommend it (pun intended). Please see below to change how we publish science 1/n

Happy to share our new paper OA in Genetics. We show that population genomic methods based on ARGs (ancestral recombination graphs i.e. genetic ancestry along chromosomes) for demography inference can be biased when applied to genomes with wide high-recombining regions. doi.org/10.1093/gene...

"Our study demonstrated that wild boar play a vital role as soil disturbing ecosystem engineers for the persistence of the butterfly species." www.sciencedirect.com/science/arti...

[please share widely!] We have two PhD positions available at the Swedish Museum of Natural History: [Position 1] Birds, hybridization, genomes, island biology, biogeography, sexual selection 🦚, w/ me, Knud Jønsson, Martin Iredstedt and @stelkens.bsky.social et al recruit.visma.com/spa/public/a...

Check out our exciting programme of early-career speciation research talks for the Gordon Research Symposium on Speciation, this March in Ventura www.grc.org/speciation-g... Graduate students & postdocs, if you'd still like to join us: make sure to register before the 1st of Feb!

Stoked about this manuscript, many years in the making. We present an original resource of ~700 highly curated plastid MAGs of marine pelagic algae. Among these we found a novel deep branching group of plastid genomes; we informally call them leptophytes www.biorxiv.org/content/10.1...

When will hybridization bring long-term benefits? https://www.biorxiv.org/content/10.1101/2025.01.16.633403v1

Nitrogen deposition is one of the factors thought to be causing the decline of butterflies. This study shows a possible mechanism: a steady change in nutrition of their food-plants which are becoming more like junk-food with high N

In 2010 (SMBE Lyon) I gave a talk about the impact of GC-biased gene conversion (gBGC) on functional sequence evolution. I argued that, because gBGC promotes G and C alleles irrespective of their fitness effect, it should generate some genetic load. 1/5

Peter Visscher is a luminary in human genetics, but in this case, he is completely wrong. Here's why 🧵 www.nature.com/articles/s41...

To avoid males as much as possible, female Rocky Mountain Parnassians don’t fly much. Instead, they spend most of their time running around on the ground! Douglas County, Colorado, USA

This collaboration was such a pleasure. Our new paper on cascades of HT after introduction of two TEs to human commensals www.nature.com/articles/s41...

Pervasive horizontal transmission of Wolbachia in natural populations of closely related and widespread tropical skipper butterflies bmcmicrobiol.biomedcentral.com/articles/10....

Natural variation modifies centromere proximal meiotic crossover frequency and segregation distortion in Arabidopsis thaliana biorxiv.org/content/10.1... new work from us on centromere inheritance and organisation @matt-naish.bsky.social @plantevolution.bsky.social @genomeevolution.bsky.social

At Stockholm University, we are now starting a 2-year Master’s programme in Evolutionary Genomics! Topics include population genetics, phylogenetics, molecular & genome evolution, DNA sequencing, bioinformatics, and palaeogenetics. Please spread the word! www.su.se/english/sear...

Special Issue on #Speciation with a nice range of thoughtful articles +---- 🐴 --| +---- 🦄

Move along now... There's nothing to see here... Just a couple of jumping spiders... nothing special... (Mating pair of Gemmed Satyrs, Cyllopsis gemma) Levy County, Florida, USA

First field season of my PhD studying Swedish sand lizards (Lacerta agilis) 🦎 My work investigates epigenetic response in immune challenge experiments. Plenty more cool projects: hormones and coloration, microbiomes, egg incubation temperatures, telomeres