General, orders-of-magnitude faster whole-genome analysis with genotype representation graphs www.biorxiv.org/content/10.64898/2026.04...

Deadline approaching for 3-year postdoc position in Bergen.

Head Engineer in ancient DNA (298943) | University of Oslo Job title: Head Engineer in ancient DNA (298943), Employer: University of Oslo, Deadline: Tuesday, May 12, 2026

Head engineer position advertised in ancient DNA lab at the University of Oslo associated with the EcoArch project: www.jobbnorge.no/en/available...

Large future genetic diversity losses are predicted from conservation indicators even with habitat protection | PNAS Genetic diversity within species underpins evolutionary adaptation and has recently been included as a target for protection in the United Nations’...

We are destroying species' habitats, leading to a mass extinction event.

This habitat destruction also reduces the genetic diversity _within_ species.

Our latest work develops quantitative models to predict how much genetic diversity has been and _will be_ lost.

🧬🧪🧵

www.pnas.org/doi/10.1073/...

So cool to see our paper finally out! Thanks to a fantastic team of co-authors 🐟🧬 @biovitenskap.bsky.social @unioslo-cees.bsky.social

Your illustations are just wonderful 🤩🤩 thanks for being wiling to do all these codfishes for us 🙌🙌😅

Rapid genome modifications including chromosomal fusions and large-scale inversions are key features in Arctic codfish species - Genome Biology Background Genome evolvability involves activation of transposable elements (TEs) that result in novel genomic rearrangements, including translocations, deletions, duplications, as well as larger stru...

Finally is the paper where we present the unique genomic architectures of the Arctic codfishes out!! Nice work by @gadus-sivus.bsky.social and co-authors …
@biovitenskap.bsky.social
@unioslo-cees.bsky.social

link.springer.com/article/10.1...

Inversions support both parallel and location-specific adaptations in snail ecotypes Replicated hybrid zones between ecotypes established over within shore environmental gradients provide an opportunity to study the genomic architecture of barriers to gene flow. The marine snail Litto...

New results on Littorina fabalis ecotypes! 🐌
Inversions aren't just enabling parallel adaptation to wave exposure in France & Sweden, they're also hotspots for site-specific differences, including a striking color QTL associated with one inversion but only in France.
www.biorxiv.org/content/10.6...

Capelin: a key Arctic species on the move - Reviews in Fish Biology and Fisheries Reviews in Fish Biology and Fisheries -

Great accomplishment for our institute. A special issue on capelin research. Here is the editorial:
Pampoulie, C., Davoren, G., Garrido, S. et al. Capelin: a key Arctic species on the move. Rev Fish Biol Fisheries 36, 23 (2026). doi.org/10.1007/s111...

😳😳 thats sad …

A comparative analysis of transposable element diversity and evolution across 75 bee genomes - BMC Genomics Transposable elements (TEs) are repetitive DNA sequences that can alter their position and abundance within genomes. While TEs are known to have various impacts on genome structure and function, our u...

TE dynamics across high-quality #genome assemblies of 75 bee species to quantify their diversity in an evolutionary context link.springer.com/article/10.1...

Recombination-aware phylogenomics Phylogenetic variation, recombination rate evolution, and comparative genome structure and organization have typically been explored in isolation. The chromosomal and genomic context of selected genet...

Maaaaaaaan things are getting to a new level in evolutionary genomics

www.cell.com/trends/ecolo...

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 ...

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.

Super happy to see our paper out! Reference choice matters, especially if you work with species that has lots of chromosomal rearrangements 🧬🐟

This work was conducted as part of the Nansen Legacy project by the talented @mariusmaur.bsky.social during his master project.

Reference genome bias in light of species-specific chromosomal reorganization and translocations - Genome Biology Background Whole-genome sequencing efforts, have during the past decade, unveiled the central role of genomic rearrangements—such as chromosomal inversions—in evolutionary processes, including local a...

New paper out where we demonstrate how pop gen parameters and scoring of structural variants (inversions) could be affected by the choice of reference genome (both in terms of both quality and relatedness).
@unioslo-cees.bsky.social
@biovitenskap.bsky.social

link.springer.com/article/10.1...

UK rejects total ban on bottom trawling in offshore marine protected areas The U.K. government has rejected calls to fully ban bottom trawling in its offshore marine protected areas, despite evidence that the fishing practice tears up seabed habitats and releases large…

UK rejects total ban on bottom trawling in offshore marine protected areas

Small fish, big implications: considerations for an ecosystem approach to capelin fisheries management - Reviews in Fish Biology and Fisheries Climate-driven changes in the Subarctic will directly impact capelin populations and the ecosystem they inhabit, including their predators, prey, and physical habitats. Consequently, incorporating eco...

📣 New paper out! Ecosystem approach to capelin fisheries #marsocsci
link.springer.com/article/10.1...

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...

Breaking genetics news‼️🌱🌽 A natural DNA trick triples recombination in maize. What we first saw in Arabidopsis (@hendersi lab) a decade ago is now confirmed in crops—opening new doors for plant breeding. Published today in Nature Plants! More details 👉 www.nature.com/articles/s41...

Skreien er annerledes i dag enn for 100 år siden Torsken er ikke genmanipulert. Endringene er menneskeskapte, ifølge ny forskning.

Høyt fiskepress har endret alder for kjønnsmodning og genetisk sammensetning hos Barents-torsken, som er verdens største gjenværende torskebestand.

Også på Grand Banks gikk gytealderen ned før kollapsen var et faktum www.forskning.no/dna-fisk-hav...

Regjeringen med storsatsing i Arktis: Vil bruke en milliard på polarforskning Norge skal fortsatt være en av verdens fremste polarforskningsnasjoner. Det er viktig for å ivareta Norges sikkerhet og geopolitiske interesser, og for å håndtere og forstå raske klimaendringer. Derfo...

Regjeringen gir 1 milliard kroner til polarforskning og forskningsprosjektet #Polarhavet2050, hvor Universitetet i Oslo er én av fjorten partnere. Dette blir spennende!
@jentoft.bsky.social

Out after peer review, collaborative study from Nordborg & Weigel labs with help from many others. Not the largest collection of new Arabidopsis thaliana genomes, but we hopefully put forward some good ideas for how to think about pangenomes and their analysis!
www.nature.com/articles/s41...

Disse endringene gjør skreien mer sårbar for ytterligere påvirkning og kan trolig knyttes til endringer i vandringsmønsteret til torsken i senere tid. Mao ja, vi påvirker våre fiskebestander kanskje mer enn vi aner …

Verdens største torskebestand er påvirket av mennesker. Endringen er synlig i genene. - Titan.uio.no Skreien er annerledes i dag enn for 100 år siden. Torsken er ikke genmanipulert. Endringene er menneskeskapte, ifølge ny forskning.

I flere tiår har det vært debattert om vi mennesker påvirker genene til bestandene vi høster. I ett nytt studie - hvor vi har fått tilgang på over hundre år gamle prøver av skrei samlet inn i Lofoten - avdekker nettopp dette!! For mere info se:
www.titan.uio.no/naturvitensk...

Gigafabrikken: - Sleipt talltriks Regjeringen trikser med tall i striden om den planlagte sprengstoffabrikken, mener lederen for det lokale Naturvernforbundet. Regjeringen avviser kritikken.

Utrolig at Forsvarsdepartementet prøver å benekte helt klare fakta: Reisetid ER tillagt vekt, og utgjør avgjørende faktor i lokaliseringsvurderingen.

Uten å vekte reisetid, eller vekte annerledes, kommer andre alternativer enn Hurum bedre ut. Det må man stå for. borsen.dagbladet.no/nyheter/giga...

Effective Population Size Estimation in Large Marine Populations: Considering Current Challenges and Opportunities When Simulating Large Data Sets With High‐Density Genomic Information Next-generation-sequencing has broadened perspectives regarding the estimation of the effective population size (Ne) by providing high-density genomic information. These technologies have expanded da...

Happy to share our new review, led by Chrystelle Delord, Natacha Nikolic, @sofarndhnd.bsky.social and other people not on bluesky, about the Ne estimation in large marine populations, plus a simulation framework onlinelibrary.wiley.com/doi/10.1111/...
#PopGen #PopulationGenomics #PopulationGenetics

Mind the lag: understanding genetic extinction debt for conservation The delay between disturbance events and genetic responses within populations is a common but surprisingly overlooked phenomenon in ecology and evolut…

Mind the lag: understanding genetic extinction debt for conservation
www.sciencedirect.com/science/arti...

If the observed alterations in genomic signal affect their long term resilience is up for debate … and e.g., linked to the past years shift in their distribution and where they spawn … this urge for higher awareness on how we exploit out stocks ‼️ @unioslo-cees.bsky.social @biovitenskap.bsky.social

Ecological modeling and adaptive genome-wide scans show that these shifts were coupled to intensified fishing pressure, reduced generation time, and the ongoing ocean warming ➡️ sparking earlier debates on how fisheries and other anthropogenic perturbations affect long-term genome-wide changes.

Our genome-wide retrospective characterization uncovered intensified directional gene from the non-migratory coastal cod in modern times (post millennium) ➡️ indicating increased hybridization events and/or survival of hybrids.