Lightnews — Scholar-powered news

Kjetill S Jakobsen @kjetillsj.bsky.social · 14d

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/...

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

academic.oup.com

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Reposted by Kjetill S Jakobsen

José Cerca @naturalselection.bsky.social · 21d

🧨 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

This link will take you to a page that’s not on LinkedIn

lnkd.in

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Reposted by Kjetill S Jakobsen

Chris Lennard @cklennard.bsky.social · 27d

Cool intro to the Earth Biogenome Project (link in the article)

… and who doesn’t love our cute Aussie spiders? 🕷️

share.google/XvZI57IbEdNU...

'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.

share.google

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Reposted by Kjetill S Jakobsen

Genome Biology and Evolution @genomebiolevol.bsky.social · 20d

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

GBE | Highlight: Leveraging Phylogenomics to Uncover the Loci of Repeated Evolution

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Reposted by Kjetill S Jakobsen

Genome Biology and Evolution @genomebiolevol.bsky.social · 22d

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

GBE | From Trees to Traits: A Review of Advances in PhyloG2P Methods and Future Directions

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Reposted by Kjetill S Jakobsen

PLOS Biology @plosbiology.org · 23d

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

Top left: Two-color double ISH of Nova (green) and Islet (magenta) showing co-expression in the bilaterally symmetric Motor Neuron 2 (MN2) pair of cells (arrows). Note that Nova mRNA distribution appears more nuclear than Islet in these cells at this stage. Top right: Summary model diagram of a conserved Nova-Agrin-Lrp4 pathway for AChR clustering in Ciona. Upper panel: Summary of conserved pathway, and previously unidentified Ebf-Nova regulatory connection identified in Ciona. Lower panel: Model of proposed mechanism for Ciona Nova-dependent alternative Agrin splicing via binding of KH1 and KH2 domains to two YCAY-rich NISEs identified in the intron 3′ to the Z exons (though not known in what exact orientation or configuration). Inhibitory effect of KH3 domain is relieved by the N- and C-termini. Diagram not drawn to scale. Bottom: Neural-specific CRISPR-mediated disruption of Agrin using sgRNAs results in loss of Acetylcholine receptor A1::GFP clusters (AChRA1::GFP, green) in tail muscles, driven by the Tbx6-r.b promoter. Motor neuron axons labeled by VAChT > Unc-76::mCherry in magenta.

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Reposted by Kjetill S Jakobsen

Nature Reviews Genetics @natrevgenet.nature.com · Jan 27

Nuclear mRNA decay: regulatory networks that control gene expression go.nature.com/3WzQ7wc #Review by Xavier Rambout & Lynne E. Maquat

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 ...

www.nature.com

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Reposted by Kjetill S Jakobsen

Matt Friedman @friedmanlab.bsky.social · 25d

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.

Multicolored CT model of a fossil cichlid skeleton. Image credit: Austin Babut (project technician).

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Reposted by Kjetill S Jakobsen

Lukas VF Novak @animalculum.bsky.social · 25d

#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

schematic pictures and microscopic photos showing various aspects of movement in single-celled algae

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Reposted by Kjetill S Jakobsen

Catherine Chambers @coastalcultureice.bsky.social · 28d

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

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...

link.springer.com

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Reposted by Kjetill S Jakobsen

Kristen Behrens, PhD @behrenskristen.bsky.social · 26d

So proud to see my cohort-mate’s paper up!

Genome Biology and Evolution @genomebiolevol.bsky.social · 26d

Zhao, Quinteros & Machado describe unusually large and continuous pericentromeric transposable element-rich regions in all chromosomes of the genome of a Neotropical fig wasp,

🔗 doi.org/10.1093/gbe/evaf158

#genome #evolution #TEsky

Evolutionary Consequences of Unusually Large Pericentric TE-rich Regions in the Genome of a Neotropical Fig Wasp

Abstract. Transposable elements (TEs), despite generally being considered deleterious, represent a substantial portion of most eukaryotic genomes. Specific

doi.org

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Reposted by Kjetill S Jakobsen

Camille Roux @crouxevo.bsky.social · 26d

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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Reposted by Kjetill S Jakobsen

Richard Lenski @relenski.bsky.social · 27d

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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Reposted by Kjetill S Jakobsen

bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 26d

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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Reposted by Kjetill S Jakobsen

Christian Landry @christianlandry.bsky.social · 28d

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...

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...

www.biorxiv.org

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Reposted by Kjetill S Jakobsen

José Cerca @naturalselection.bsky.social · 28d

Cool preprint! 🚨

Lanternfish lack MHC I and functional MHC II — yet still produce antibodies! 🧬🐟

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

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...

www.biorxiv.org

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Reposted by Kjetill S Jakobsen

Rose 🌹 @rose.bsky.team · 28d

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 💀

Screenshot of Meltwater report showing Bluesky is 85.5% of mentions across platforms while other social platforms are much lower

Screenshot of Meltwater report showing Bluesky mentions by search is 10x higher than the alt platform, Threads

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Reposted by Kjetill S Jakobsen

Wouter van der Bijl @vdbijl.bsky.social · 28d

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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Reposted by Kjetill S Jakobsen

Department of Biosciences, University of Oslo @biovitenskap.bsky.social · Sep 8

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

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...

cdnsciencepub.com

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Reposted by Kjetill S Jakobsen

Rob Waterhouse @rmwaterhouse.bsky.social · Sep 6

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....

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....

onlinelibrary.wiley.com

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Reposted by Kjetill S Jakobsen

Aurora Ruiz-Herrera @aruizherrera.bsky.social · Sep 7

🔖Last review from the lab👇

'Male meiosis at the helm: shaping genomes and sex chromosomes in emerging vertebrate models'

academic.oup.com/biolreprod/a...

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

academic.oup.com

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Reposted by Kjetill S Jakobsen

Rob Waterhouse @rmwaterhouse.bsky.social · Sep 7

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...

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Reposted by Kjetill S Jakobsen

Nature @nature.com · Sep 3

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

‘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.

go.nature.com

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Reposted by Kjetill S Jakobsen

Jonathan Romiguier @selfishmeme.bsky.social · Sep 4

You may have missed this #ant poster at #ESEB2025, but be sure not to miss the article just published in #openacess in @nature.com: www.nature.com/articles/s41...

One mother for two species via obligate cross-species cloning in ants - Nature

In a case of obligate cross-species cloning, female ants of Messor ibericus need to clone males of Messor structor to obtain sperm for producing the worker caste, resulting in males from the same moth...

www.nature.com

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Reposted by Kjetill S Jakobsen

Joost Raeymaekers @joostraeymaekers.bsky.social · Sep 4

📢 Exciting PhD fellowship with a great mix of ecosystem ecology and invasion biologie in Northern Norway! www.jobbnorge.no/en/available...

PhD position in Carrion & Invasive Species Ecology (283012) | Nord University

Job title: PhD position in Carrion & Invasive Species Ecology (283012), Employer: Nord University, Deadline: Sunday, September 21, 2025

www.jobbnorge.no

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