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Reposted by Mateusz Konczal

Graham Coop @gcbias.bsky.social · 16h

Congratulations to @jeffgroh.bsky.social on the publication of his paper on an ancient balanced polymorphisms controlling heterodichogamy in two genera of wingnuts. The paper shows the putative turnover & reversal of dominance of a mating type polymorphism
www.sciencedirect.com/science/arti...

Distinct haplotypes and reversed dominance at a single-gene balanced polymorphism controlling heterodichogamy in two genera of wingnuts

In the angiosperm mating system of heterodichogamy, two hermaphroditic morphs temporally alternate between male and female flowering phases, promoting…

www.sciencedirect.com

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Reposted by Mateusz Konczal

Reto Burri @reto-burri.bsky.social · 2h

1/9 New in @science.org www.science.org/doi/10.1126/science.ado8005
How does genetic architecture constrain evolutionary trajectories? To address this question, we inferred the genetic architecture of convergent plumage coloration and its evolutionary history in wheatears.

A mosaic of modular variation at a single gene underpins convergent plumage coloration

The reshuffling of genomic variation from multiple origins is an important contributor to phenotypic diversification, yet insights into the evolutionary trajectories of this combinatorial process and ...

www.science.org

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Reposted by Mateusz Konczal

Erle Ellis @erleellis.bsky.social · 8d

Anthropocene Canceled? 🚯 @ecosocialism1.bsky.social
monthlyreview.org/articles/has...
>>> Of course NOT <<<
The evidence speaks for itself.
No geologists, epochs or hype required.
theconversation.com/the-anthropo... 🌍⚒️🌐🧪

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Reposted by Mateusz Konczal

Matthew Neville @mattneville.bsky.social · 8d

Now published! Our paper on:
(1) Accurate sequencing of sperm at scale
(2) Positive selection of spermatogenesis driver mutations across the exome
(3) Offspring disease risks from male reproductive aging
[1/n]
www.nature.com/articles/s41...

Sperm sequencing reveals extensive positive selection in the male germline - Nature

A combination of whole-genome NanoSeq with deep whole-exome and targeted NanoSeq is used to accurately characterize mutation rates and genes under positive selection in sperm cells.

www.nature.com

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Mateusz Konczal @mkonczal.bsky.social · 8d

"Potato, potato; tomato, tomahto" but the potato evolved from the tomato 9 millions years ago 🤓
www.cell.com/news-do/pr-p...

The potato evolved from the tomato 9 million years ago

Recent Cell research covered by The Guardian, The New York Times, The Atlantic, and more.

www.cell.com

Reposted by Mateusz Konczal

Piotr Ziolkowski @piotraz.bsky.social · 20d

🚀 We’re hiring a Postdoc!

Join our group in Poznan, Poland to study meiotic crossover recombination in plants 🌱 Highly motivated & enthusiastic candidates are welcome!
📅 Deadline: Nov 1, 2025

🔗 ibmib.web.amu.edu.pl/wp-content/uploads/2025/09/Postdoc_position-2025-Ziolkowskis-Lab.pdf

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Mateusz Konczal @mkonczal.bsky.social · 27d

One of my favourite examples for #conservation #genetics classes. It reminds me that with October #TeachingIsComming

Vincent J Lynch 🐘🦣🦥 🦇🐋🐢🐍 @devoevomed.bsky.social · 27d

Intense ivory poaching has led to the evolution of tusklessness in some African elephant populations, which might reduce poaching, but also happens to be an X-chromosome–linked dominant trait that is lethal to males #EleFunFactFriday #TheMoreYouKnow 💫 🧪 🐘

www.science.org/doi/10.1126/...

Ivory poaching and the rapid evolution of tusklessness in African elephants

Intensive ivory poaching during a period of civil conflict caused the rapid evolution of tusklessness in an African elephant population.

www.science.org

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Reposted by Mateusz Konczal

KevinDKohl @kevindkohl.bsky.social · Sep 12

Pleased to share new work tinkering with and testing the concept of the holobiont
@isme-microbes.bsky.social

"Experimental evolution of a mammalian holobiont: bank voles selected for herbivorous capability evolved distinct and robust gut bacterial communities"
🌾🐭🦠

academic.oup.com/ismecommun/a...

Experimental evolution of a mammalian holobiont: bank voles selected for herbivorous capability evolved distinct and robust gut bacterial communities

Abstract. According to the “hologenome” theory of evolution natural selection and evolution can act through a conglomerate biological unit, the “holobiont”

academic.oup.com

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bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · Sep 16

Interplay between purging and admixture shapes genetic load in an invasive guppy population https://www.biorxiv.org/content/10.1101/2025.09.12.675788v1

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Mateusz Konczal @mkonczal.bsky.social · Sep 16

Our latest preprint shows that in translocated invasive guppy population, genetic load is reshaped by purging and admixture. A bottleneck purged strongly deleterious mutations, but admixture reversed this effect while reducing the load of weakly deleterious mutations. www.biorxiv.org/content/10.1...

Interplay between purging and admixture shapes genetic load in an invasive guppy population

Demographic history can shape the genetic load of populations by influencing the efficacy of selection, levels of heterozygosity, and by incorporation of new variants via gene flow. Understanding thes...

www.biorxiv.org

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Marianna Karageorgi @mkarag.bsky.social · Sep 15

How do populations maintain an evolutionary memory? I am happy to share that our work with Dmitri Petrov @petrovadmitri.bsky.social, Paul Schmidt, and colleagues on dominance reversal and stabilization of insecticide resistance in changing environments over time is now published at Nature EE.

Beneficial reversal of dominance maintains a large-effect resistance polymorphism under fluctuating insecticide selection - Nature Ecology & Evolution

Measuring selection and dominance in fitness of the insecticide-resistant Ace alleles in Drosophila melanogaster, the authors show evidence for beneficial reversal of dominance, a mechanism that can s...

www.nature.com

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bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · Sep 12

Fighting to persist: Genetic rescue increases long-term fitness despite elevated genetic load https://www.biorxiv.org/content/10.1101/2025.09.06.673525v1

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Mateusz Konczal @mkonczal.bsky.social · Sep 13

Check out our latest work! We experimentally showed that #genetic #rescue works: in the bulb mites, boosting genome-wide variation improved survival for 20 generations in high temp. Elevated genetic load or sexually selected traits? Barely mattered. #Conservation

www.biorxiv.org/content/10.1...

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Evolutionary Biology Group, Adam Mickiewicz University @evobiolab.bsky.social · Sep 12

@neelamporwal.bsky.social ‘s talk about estimating extinction risks under sexual selection using simulations, at PEC2025 won the first prize for the best student talk. So, should animals swipe right for survival?🐧

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Fausto Rodríguez Zapata @minorallele.bsky.social · Sep 3

Enhancing local meiotic crossovers in Arabidopsis and maize through juxtaposition of heterozygous and homozygous regions | Nature Plants share.google/ZsqLLUu9l2Zv...

Enhancing local meiotic crossovers in Arabidopsis and maize through juxtaposition of heterozygous and homozygous regions - Nature Plants

This study discovered that locally confined DNA differences boost crossover rates in both Arabidopsis and maize, revealing a conserved mechanism that can accelerate plant breeding and trait introgress...

share.google

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Rayan Chikhi @rayanchikhi.bsky.social · Sep 3

🌎👩‍🔬 For 15+ years biology has accumulated petabytes (million gigabytes) of🧬DNA sequencing data🧬 from the far reaches of our planet.🦠🍄🌵

Logan now democratizes efficient access to the world’s most comprehensive genetics dataset. Free and open.

doi.org/10.1101/2024...

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Clàudia Fontserè @claudiafontsere.bsky.social · Aug 26

This is now published at #MolecularEcology onlinelibrary.wiley.com/doi/10.1111/...

Check it out!

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Katerina Guschanski @kguschan.bsky.social · Aug 26

Fantastic dental calculus and where to find it

Johnny Richards and team (@markella-morait.bsky.social + curators from 5 museums) survey >140 mammalian species with >1,600 specimens to understand what factors determine dental calculus formation. #aDNA #museomics
www.biorxiv.org/content/10.1...

Examples of dental calculus in different mammalian species ranked by amount from 0 (no calculus) to 3 (full incrustation)

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Jacek Radwan @jacek-radwan.bsky.social · Jul 28

If you are frustrated with the quality of reviews and excessive article processing charges, take a minute read:
trulyopenscience.blogspot.com/2025/07/a-si...
We researchers really have a power to change this!
#ScientificPublishing

A simple recipe for a truly open, prestigious, society-owned journal

Is there anything wrong with the current model of scientific publishing, and, if so, can we, practising researchers, do anything about it? I...

trulyopenscience.blogspot.com

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Erik Postma @erikpostma.bsky.social · Aug 22

With #eseb2025 coming to a close, it is time to start making plans for 2026. Interested in the interface of evolution 🧬 and ecology 🌳? Come to our #ExE conference hosted by @uniexecec.bsky.social in beautiful #Cornwall. Leave your email address at tinyurl.com/EvolxEcol to join our mailing list!

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Mateusz Konczal @mkonczal.bsky.social · Aug 22

Small update:
Plenaries and Nosil talks: "Nature/Science" in the bottom right of a slide #eseb2025

Mateusz Konczal @mkonczal.bsky.social · Aug 20

#eseb2025 talks were great so far. Subjective ranking of the most common quotes:
- theory and modeling: "with this very simple approach"
- genomics: "using methodology you all know"
- plenaries: "Nature/Science" in the bottom right of a slide
- posters: "una cerveza por favor"

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Evolutionary Biology Group, Adam Mickiewicz University @evobiolab.bsky.social · Aug 21

We are having fantastic time presenting and discussing our work at #ESEB2025

- Neelam Porwal answered a question "How sexual selection shapes small populations demography under recurrent heatwaves"

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Mateusz Konczal @mkonczal.bsky.social · Aug 20

#eseb2025 talks were great so far. Subjective ranking of the most common quotes:
- theory and modeling: "with this very simple approach"
- genomics: "using methodology you all know"
- plenaries: "Nature/Science" in the bottom right of a slide
- posters: "una cerveza por favor"

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Reposted by Mateusz Konczal

Molecular Biology and Evolution @molbioevol.bsky.social · Apr 23

Stuart et al. show footprints of selection after near-extinction: genetics of wild and captive Lord Howe stick insect show that after a severe bottleneck, inbreeding appears to remove harmful mutations via increased homozygosity.

🔗 doi.org/10.1093/molb...

#selection #evobio #molbio

Purging of Highly Deleterious Mutations Through an Extreme Bottleneck

Abstract. Transitions to captivity often produce population bottlenecks. On the one hand, bottlenecks increase inbreeding and decrease effective population

doi.org

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Mateusz Konczal @mkonczal.bsky.social · Apr 15

"Dissertationibus conscriptis et publice defensis." What a day it was! Congratulations @k-burda.bsky.social So proud of you

Evolutionary Biology Group, Adam Mickiewicz University @evobiolab.bsky.social · Apr 15

Gratulacje!
@k-burda.bsky.social for defending her PhD titled “Determinants of genetic load in natural populations of guppies”
She estimated per-generation mutation rate in guppies and explored how demographic events affect the buildup or removal of harmful variation in their natural populations.

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