Kjetill S Jakobsen
@kjetillsj.bsky.social
📤 93
📥 83
📝 16
Evolutionary biologist studying functional, comparative and populations diversity processes
Due to complex evolutionary histories, hybridisations and polyploidizations - just to name some - pan genomes are crucial to plant research. American Journal of Botany
bsapubs.onlinelibrary.wiley.com/doi/10.1002/...
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Pangenomes as a framework for adaptive radiation, speciation, and adaptation
Understanding the genomic basis of diversification is a central goal in evolutionary biology. In recent years, the development and use of pangenomes, a genomic representation of multiple individuals ...
https://bsapubs.onlinelibrary.wiley.com/doi/10.1002/ajb2.70130
3 months ago
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Kjetill S Jakobsen
Earth BioGenome Project 🌍
3 months ago
Huge congratulations to everyone who made this milestone possible! 🎉🦋 Field teams out exploring 🥾🌿 and lab teams powering the sequencing 🧬 — every single contribution mattered. 🙌✨
add a skeleton here at some point
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Kjetill S Jakobsen
Journal of Experimental Botany
4 months ago
🧬 SPECIAL ISSUE REVIEW 🧬 Kearly & Nelson discuss historical and modern approaches and their limitations for identifying and characterizing plant short open reading frame-encoded peptides, and how improved techniques are rapidly changing the field 🌱 🔗
doi.org/10.1093/jxb/...
#PlantScience
🧪
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Kjetill S Jakobsen
GIFS GALORE
4 months ago
NATURE/NORWAY1.GIF
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Kjetill S Jakobsen
Genome Biology and Evolution
4 months ago
Pegan & Winger tested whether inversions are common within populations without phenotypic polymorphisms in 28 N. American bird species, finding that many polymorphisms are present at balanced frequencies, but possibly segregating neutrally. 🔗
doi.org/10.1093/gbe/evaf205
#genome
#evolution
#birds
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Kjetill S Jakobsen
Judith Mank
4 months ago
Team fish - we need your help! We are trying to build a database of all the fish chromosome-scale genomes where sex chromosomes have been identified. Have you build one or some? Do you know someone who has? Can you post the link in the comments? Please spread the word and repost! Thank you!
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Kjetill S Jakobsen
Genome Biology and Evolution
4 months ago
@katharinasures.bsky.social
@probstlab.bsky.social
et al. analysed CRISPR-Cas systems of metagenome-assembled genomes from two subsurface environments, shedding new light on the diversity of CRISPR spacers in natural microbial communities. 🔗
doi.org/10.1093/gbe/evaf201
#genome
#evolution
#CRISPR
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Acquisition of Spacers from Foreign Prokaryotic Genomes by CRISPR-Cas Systems in Natural Environments
Abstract. Clustered regularly interspaced short palindromic repeats (CRISPR) and CRISPR-associated (Cas) systems of bacteria and archaea provide immunities
https://doi.org/10.1093/gbe/evaf201
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Kjetill S Jakobsen
Nature Reviews Genetics
4 months ago
New online! Harnessing artificial intelligence to advance CRISPR-based genome editing technologies
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Harnessing artificial intelligence to advance CRISPR-based genome editing technologies
Nature Reviews Genetics, Published online: 18 November 2025; doi:10.1038/s41576-025-00907-1CRISPR-based genome editing has revolutionized biotechnology, enabling precise DNA modifications for research and therapy. The authors review how artificial intelligence, including deep learning, is advancing genome editing by improving guide RNA design, editor protein engineering, novel effector discovery and predicting editing outcomes.
https://www.nature.com/articles/s41576-025-00907-1?utm_source=dlvr.it&utm_medium=bluesky
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Kjetill S Jakobsen
Francesca Tinti
4 months ago
The serpent head of the Oseberg Viking ship, carved in 820, and shown for the first time to the public in the Oslo Historical Museum
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Kjetill S Jakobsen
Earth BioGenome Project 🌍
4 months ago
🌍✨ Why genome sequence mega-diverse countries? A handful of countries hold >70% of Earth’s terrestrial biodiversity — packed with species found nowhere else. These places are evolution’s playground… and extinction’s front line.
#Biodiversity
🌿
#GenomeSequencing
🧬
#Genomics
🔬
#ConservationGenomics
🌍
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Kjetill S Jakobsen
Science Magazine
4 months ago
An early Triassic bone bed excavated at 78°N changes the story about how marine life recovered after the most cataclysmic extinction in Earth history ~252 million years ago. Learn more in this week's issue of Science:
https://scim.ag/48bLsGI
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Kjetill S Jakobsen
Royal Society Publishing
4 months ago
The number of low-quality or fraudulent publications is rising to hundreds of thousands per year. It is time to reevaluate current publishing models and outline a global plan. Read the 'Reformation of science publishing: the Stockholm Declaration':
royalsocietypublishing.org/doi/10.1098/...
#RSOS
🧪
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Kjetill S Jakobsen
Genome Biology and Evolution
4 months ago
The recent GBE paper on whole-genome duplication in Potamopyrgus antipodarum is the focus of November's Highlight. Highlight: Genome Duplication in a New Zealand Snail Holds Clues for the Persistence of (A)sexual Reproduction 🔗
doi.org/10.1093/gbe/evaf198
#genome
#evolution
#WGD
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Kjetill S Jakobsen
Department of Biosciences, University of Oslo
4 months ago
New publication: "A quality standard for conservation of wild
#reindeer
" with Atle Mysterud from
@unioslo-cees.bsky.social
&
@biovitenskap.bsky.social
Published in The Wildlife Society
@thewildlifesociety.bsky.social
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TWS Journals
Reindeer is an iconic species in the Arctic and subarctic but populations are declining. An environmental quality standard for reindeer populations assess their overall status (poor, medium, and good...
https://wildlife.onlinelibrary.wiley.com/doi/10.1002/wmon.70005
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The most original wild reindeer in Norway has been sequenced: Chromosome-level genome assembly of alpine reindeer (Rangifer tarandus tarandus) url:
academic.oup.com/jhered/artic...
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Validate User
https://academic.oup.com/jhered/article/doi/10.1093/jhered/esaf094/8313328
4 months ago
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Kjetill S Jakobsen
Lee Hsiang Liow (廖珕庠)
4 months ago
#marineinvert
folks, not many
#bryozoa
genomes, here’s a new one, a Norwegian Flustra foliacea
www.biorxiv.org/content/10.1...
Genome is "large" (at c. 900Mb). Lead by Helle Baalsrud (NMBU) and Ole Tørresen (UiO).
@ebpgenome.bsky.social
Norway
@kjetillsj.bsky.social
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Chromosomal fusions shaped the genome of the greater hornwrack bryozoan (Flustra foliacea) (Linnaeus, 1758)
The phylum Bryozoa is an understudied, yet commonly-occurring, globally distributed bilaterian metazoan organismal group. They have a colonial lifestyle and an evolutionary history that spans at least...
https://www.biorxiv.org/content/10.1101/2025.10.29.685310v1
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Kjetill S Jakobsen
Fabien Burki
4 months ago
Phylogenomic analysis of deep-branching telonemid
#protistsonsky
academic.oup.com/gbe/advance-...
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Phylogenomic analysis of deep-branching telonemid
Abstract. The evolutionary history of eukaryotic supergroups has been investigated primarily by large-scale phylogenomics, but one major hindrance to conti
https://academic.oup.com/gbe/advance-article/doi/10.1093/gbe/evaf202/8305532
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Kjetill S Jakobsen
Department of Biosciences, University of Oslo
4 months ago
New publication highlight the interplay between sound exposure, environmental conditions, and the impact on
#zooplankton
in areas of
#seismic
activity. With Josefin Titelman from
@biovitenskap.bsky.social
Published in
@nature.com
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Zooplankton mortality and distribution around a seismic survey - Scientific Reports
Scientific Reports - Zooplankton mortality and distribution around a seismic survey
https://www.nature.com/articles/s41598-025-09465-2
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Kjetill S Jakobsen
Blanca Jimeno
5 months ago
Very excited about this work now out in @molecology! We test whether🐦with ⬆️dispersal propensity differ in the nº CpGs across the genome, with the hypothesis that⬆️CpGs allow for⬆️epigenetically-driven plasticity facilitating environmental coping
onlinelibrary.wiley.com/doi/10.1111/...
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Epigenetic Potential and Dispersal Propensity in a Free‐Living Songbird: A Spatial and Temporal Approach
Natal dispersal is a key life history trait determining fitness and driving population dynamics, genetic structure, and species distributions. Despite existing evidence that not all phenotypes are eq...
https://onlinelibrary.wiley.com/doi/10.1111/mec.70143
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Kjetill S Jakobsen
Department of Biosciences, University of Oslo
5 months ago
New publication: "Role of forest edges and other seminatural linear landscape features in structuring wild bee habitat connectivity in intensively managed landscapes" with Marianne Torvanger & Bastiaan Star
@biovitenskap.bsky.social
Published in Conservation Biology
@scbeurope.bsky.social
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https://conbio.onlinelibrary.wiley.com/doi/10.1111/cobi.70152
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Kjetill S Jakobsen
Genome Biology and Evolution
5 months ago
@notothentoma.bsky.social
@arcolon14.bsky.social
&
@jpostlethwait.bsky.social
show how Antarctic white-blooded icefishes, the only vertebrates without hemoglobin, independently lost hemoglobin cluster genes, driven by TEs and repeats. 🔗
doi.org/10.1093/gbe/evaf184
#genome
#evolution
#TEsky
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Kjetill S Jakobsen
Sissel Jentoft
5 months ago
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...
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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...
https://link.springer.com/article/10.1186/s13059-025-03761-w?utm_source=rct_congratemailt&utm_medium=email&utm_campaign=oa_20251015&utm_content=10.1186/s13059-025-03761-w
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Article alert: Maurstad, Hoff; Cerca et al. Reference genome bias in light of species-specific chromosomal reorganization and translocations. Now out in Genome Biol. Congrats to Sissel and the team😀
doi.org/10.1186/s130...
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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...
https://doi.org/10.1186/s13059-025-03761-w
5 months ago
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Kjetill S Jakobsen
Earth BioGenome Project 🌍
5 months ago
🧬 Not all DNA comes out easily! Some species lock their secrets behind tough shells, rigid walls, or tricky chemistry. Extracting high-quality DNA can mean cracking exoskeletons, dissolving cell walls, or working around inhibitory compounds — science meets detective work 🔬💥
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Kjetill S Jakobsen
CEES, University of Oslo
5 months ago
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Utviklingen av fingrene våre har et svært overraskende opphav
Genregulering som lot oss utvikle fingre, ble først brukt å danne rumpehull hos fisk.
https://www.forskning.no/evolusjon-menneskekroppen/utviklingen-av-fingrene-vare-har-et-svaert-overraskende-opphav/2557121
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Kjetill S Jakobsen
Sam Bogan
5 months ago
Excited to share this work, out today in MBE! In polar fishes, we found that antifreeze protein genes expanded in copy number at low temperatures and contracted in the deep sea, highlighting a role of depth and pressure in AFP evolution. 🔗
academic.oup.com/mbe/article/...
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Kjetill S Jakobsen
CEES, University of Oslo
5 months ago
Congratulations, Inga!
@biovitenskap.bsky.social
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Inga is a new member at the Academy - Department of Biosciences
Inga Angelica Frøland Steindal has been accepted as a new member of The Young Academy of Norway. Inga is a researcher at the Center for Ecological and Evolutionary Synthesis (CEES) at the Department o...
https://www.mn.uio.no/ibv/english/about/news-and-events/news/2025/inga-new-member-ayf.html
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Article alert! Single Nucleotide Polymorphisms, Structural Variants, and Short Tandem Repeats Capture Distinct Signals of Adaptive Divergence in the Atlantic Puffin url:
academic.oup.com/gbe/article/...
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Single Nucleotide Polymorphisms, Structural Variants, and Short Tandem Repeats Capture Distinct Signals of Adaptive Divergence in the Atlantic Puffin
Abstract. The Arctic has been the scene for (re)colonization, diversification, and adaptation of boreal and Arctic fauna. As anthropogenic warming of the A
https://academic.oup.com/gbe/article/17/9/evaf162/8237912
6 months ago
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Kjetill S Jakobsen
José Cerca
6 months ago
🧨 The Naturhistoriska riksmuseet has a position open for a Tenure-Track group Leader position (DDLS fellow). 17 M SEK start-up (1.6 million euros, which will account for your salary / 2 PhDs / 2 Postdocs / plenty of money for starting projects and sending peoeple to conferences).
lnkd.in/d5jNr_Ti
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LinkedIn
This link will take you to a page that’s not on LinkedIn
https://lnkd.in/d5jNr_Ti
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Kjetill S Jakobsen
Chris Lennard
6 months ago
Cool intro to the Earth Biogenome Project (link in the article) … and who doesn’t love our cute Aussie spiders? 🕷️
share.google/XvZI57IbEdNU...
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'Dark DNA' may explain dancing spiders' extraordinary diversity
There are many more species of peacock spider than other animals, scientists think they may know why.
https://share.google/XvZI57IbEdNUy9Hyi
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Kjetill S Jakobsen
Genome Biology and Evolution
6 months ago
The recent GBE Review on approaches to phylogenetic genotype to phenotype mapping is the focus of a new Highlight. Highlight: Leveraging Phylogenomics to Uncover the Loci of Repeated Evolution 🔗
doi.org/10.1093/gbe/evaf164
#genome
#evolution
#phylogenetics
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Kjetill S Jakobsen
Genome Biology and Evolution
6 months ago
In a new Review article in GBE,
@scientific-arlie.bsky.social
et al delve into the growing field of phylogenetic genotype to phenotype mapping (PhyloG2P), discussing advances and future directions for using phylogenomic data to map traits to genomes 🔗
doi.org/10.1093/gbe/evaf150
#genome
#evolution
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Kjetill S Jakobsen
PLOS Biology
6 months ago
Neuron-specific splicing of Agrin by Nova is essential for AChR clustering at the NMJ.
@rnadoctor.bsky.social
@lionlchristiaen.bsky.social
&co show that this pathway is conserved in tunicates & that the transcription factor Ebf is a key activator of Nova expression
@plosbiology.org
🧪
plos.io/3VhTwig
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Kjetill S Jakobsen
Nature Reviews Genetics
about 1 year ago
Nuclear mRNA decay: regulatory networks that control gene expression
go.nature.com/3WzQ7wc
#Review
by Xavier Rambout & Lynne E. Maquat
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Nuclear mRNA decay: regulatory networks that control gene expression - Nature Reviews Genetics
In this Review, the authors summarize our current understanding of nuclear pre-mRNA and mRNA decay pathways. They describe how aberrantly processed mRNAs are targeted for decay in the nucleus and how ...
https://www.nature.com/articles/s41576-024-00712-2?utm_source=bluesky&utm_medium=social&utm_campaign=nrg#Review
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Kjetill S Jakobsen
Matt Friedman
6 months ago
Do you like cichlids? Fossils? Fossil cichlids? Would you like to study them as part of a graduate degree at the University of Michigan, joining an NSF-funded project? Get in touch.
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Kjetill S Jakobsen
Lukas VF Novak
6 months ago
#Arctic
#algae
aren't immobile or entombed. They're not just surviving either—they're gliding into record books
phys.org/news/2025-09...
Ice gliding
#diatoms
establish record-low temperature limits for motility in a eukaryotic cell
www.pnas.org/doi/10.1073/...
#protists
#microbes
#extremophiles
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Kjetill S Jakobsen
Catherine Chambers
6 months ago
📣 New paper out! Ecosystem approach to capelin fisheries
#marsocsci
link.springer.com/article/10.1...
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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...
https://link.springer.com/article/10.1007/s11160-025-09986-z
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Kjetill S Jakobsen
Kristen Behrens, PhD
6 months ago
So proud to see my cohort-mate’s paper up!
add a skeleton here at some point
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Kjetill S Jakobsen
Camille Roux
6 months ago
Hybridization and introgression are major evolutionary processes. Since the 1940s, the prevailing view has been that they shape plants far more than animals. In our new study (
www.science.org/doi/10.1126/...
), we find the opposite: animals exchange genes more, and for longer, than plants
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Kjetill S Jakobsen
Richard Lenski
6 months ago
Curious to hear thoughts from
#popgen
,
#humangenetics
,
#genomics
folks on recent paper:
www.pnas.org/doi/10.1073/...
"Directed mutation" in specific human pop'ns seems unlikely to me. DM didn't stand up as proposed in bacteria, but there are hot spots shaped by past selection. Plausible here?
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Kjetill S Jakobsen
bioRxiv Evolutionary Biology
6 months ago
Parallel but distinct adaptive routes in the budding and fission yeasts after 10,000 generations of experimental evolution
https://www.biorxiv.org/content/10.1101/2025.09.11.675703v1
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Kjetill S Jakobsen
Christian Landry
6 months ago
Really excited to share our latest paper led by
@simonaube.bsky.social
. Fascinating results examining whether regulatory mutations can lead to adaptation as fast as coding mutations do.
#mevosky
#evobio
#evoSky
www.biorxiv.org/content/10.1...
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Adaptation is less accessible through mutations in promoters than in coding sequences when large effect sizes are needed
Mutations within promoters and coding sequences are both involved in adaptation, but their relative contributions remain to be compared directly. Using the fungal enzyme cytosine deaminase, we examine...
https://www.biorxiv.org/content/10.1101/2025.09.09.675213v1
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Kjetill S Jakobsen
José Cerca
6 months ago
Cool preprint! 🚨 Lanternfish lack MHC I and functional MHC II — yet still produce antibodies! 🧬🐟
www.biorxiv.org/content/10.1...
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The genome of the Glacier lanternfish shows loss of MHC I and II function and provides insight into evolution of lanternfish immune systems
Lanternfishes (Myctophidae) are one of the most abundant and species diverse orders inhabiting the mesopelagic zone. Exploitation of marine resources has recently attracted increased interest. It is t...
https://www.biorxiv.org/content/10.1101/2025.08.28.672920v1
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Kjetill S Jakobsen
Rose 🌹
6 months ago
People are talking about Bluesky! From data analyzed between Jan 1 — Aug 18, 2025, we captured 85.5% of share of voice across social, digital, and traditional media, according to Meltwater. This is what death looks like 💀
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Kjetill S Jakobsen
Wouter van der Bijl
6 months ago
Our paper on the genetics of guppy color patterns has now been assigned an issue in NEE:
doi.org/10.1038/s415...
With this paper, we also publish all 14,100 guppy photos used in the study, including before and after alignment and ornament extraction:
doi.org/10.20383/103...
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Kjetill S Jakobsen
Department of Biosciences, University of Oslo
6 months ago
New publication about how Climate-induced shifts in spawning locations for
#Atlantic
#cod
may lead to smaller offspring, impacting survival and recruitment success. With Ø. Langangen, T. Olsen, G. Ottersen, J. Durant
@jodurant.bsky.social
from
@biovitenskap.bsky.social
Published
@cjfas.bsky.social
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Consequences of climate-related poleward shifts in cod spawning
With climate change, many species alter their distribution according to local climate velocities. For marine fish, suitable areas for spawning in a warming climate may be less favorable for the result...
https://cdnsciencepub.com/doi/10.1139/cjfas-2024-0380
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Kjetill S Jakobsen
Rob Waterhouse
6 months ago
Arctic charr
#genome
- gradual development of reproductive isolation, locus-specific differentiation and eventually complete reproductive isolation and genome-wide divergence
onlinelibrary.wiley.com/doi/full/10....
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Whole Genome Sequencing Reveals How Plasticity and Genetic Differentiation Underlie Sympatric Morphs of Arctic Charr
Salmonids have a remarkable ability to form sympatric morphs after postglacial colonisation of freshwater lakes. These morphs often differ in morphology, feeding and spawning behaviour. Here, we expl....
https://onlinelibrary.wiley.com/doi/full/10.1111/mec.70085
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Kjetill S Jakobsen
Aurora Ruiz-Herrera
6 months ago
🔖Last review from the lab👇 'Male meiosis at the helm: shaping genomes and sex chromosomes in emerging vertebrate models'
academic.oup.com/biolreprod/a...
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Male meiosis at the helm: shaping genomes and sex chromosomes in emerging vertebrate models†
Abstract. The generation of haploid gametes is a hallmark of sexual reproduction achieved through a complex, albeit tightly regulated, reductional cell div
https://academic.oup.com/biolreprod/article/doi/10.1093/biolre/ioaf175/8219925
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Kjetill S Jakobsen
Rob Waterhouse
6 months ago
Earth BioGenome Project Frontiers Online Forum Deep Dive on September 18, 2025 (07:00 PT | 16:00 CEST), where we will discuss the article and chart next steps for the field. 📌 Register here:
events.frontiersin.org/earth-biogen...
add a skeleton here at some point
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Kjetill S Jakobsen
Nature
6 months ago
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
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‘Almost unimaginable’: these ants are different species but share a mother
Ant queens of one species clone ants of another to create hybrid workers that do their bidding.
https://go.nature.com/4mOb5T9
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