David Combosch

Our paper on Nautilus unique sex determination made the cover of @currentbiology.bsky.social 🥳🤩
With Hector Torrado, Carlos Leiva, @sarah-thesea.bsky.social @anariesgo.bsky.social, Gonzalo Giribet et al!

♨️Live from #BGEconnects:

We just finished “iBOL – How genomics is transforming understanding of biodiversity through DNA-barcoding” by Paul Herbert, director of @cbg-uofg.bsky.social and iBOL.
"It’s changing our view on the understanding of life on our planet."

@iboleurope.bsky.social #DNA

We’re almost live! 💥

Today and tomorrow, #BGE’s symposium "Unlocking the power of #genomic science for nature and the #bioeconomy in Europe" (30Sept-1Oct) will be streamed live from @naturalsciences-be.bsky.social, Brussels! 🧬

🎥 Start: 30-09-25 at 13:30 CEST
▶️ Watch live (free): lnkd.in/eQmVztQq

Our paper on Nautilus sex determination made the cover of @currentbiology.bsky.social !
With @reef-combo.bsky.social @anariesgo.bsky.social and Hector Torrado!
@leibnizlib.bsky.social
Check it out now!

I get that the news cycle is packed right now, but I just heard from a colleague at the Smithsonian that this is fully a GIANT SQUID BEING EATEN BY A SPERM WHALE and it’s possibly the first ever confirmed video according to a friend at NOAA

10 YEAR OLD ME IS LOSING HER MIND (a thread 🧵)

Wind-jet upwelling in the GOP. (A) Typical wind vectors and SST through the topographic low in the Isthmus of Panama showing reduced sea surface temperatures in the Gulf (Feb 4, 2019). (B) Daily satellite-derived SST 1985–2025. Dashed line shows the lowest 2025 SST (27.5 °C); gray arrow indicates anomalous 2025.

One of the most-viewed PNAS articles in the last week is “Unprecedented suppression of Panama’s Pacific upwelling in 2025.” Explore the article here: www.pnas.org/doi/10.1073/...

For more trending articles, visit ow.ly/Me2U50SkLRZ.

Ancient Cephalopod, New Insight: Nautilus Reveals Unexpected Sex Chromosome System | Department of Organismic and Evolutionary Biology

A new study by Professor David Combosch (former postdoc) and OEB Professor Gonzalo Giribet reveals the surprising sex determination system in the living fossil, Nautilus #evolution #genetics #cephalopod #chromosome

Nautilus sex determination is unique among cephalopods

Three PostDoc positions in ecological synthesis at TU Darmstadt (m/f/d) available, focusing on biodiversity and climate change. Apply by October 25, 2025. More info: https://www.reassembly.de/the-team/job-announcement/ #postdoc

Genomics for Ecological and Evolutionary Studies - Live-streaming: This Instats seminar on Genomics for Ecological and Evolutionary Studies taught by Giulio Formenti & Guido Gallo will help you take your research to the next level. Sign up today!

Join the 5-day seminar "Genomics for Ecological and Evolutionary Studies" from Oct 13-17. Led by experts, it covers DNA sequencing with Python/R. Sign up at: https://instats.org/seminar/genomics-for-ecological-and-evolutionary #course #workshop

A small tropical fish with a brown and white striped body, blue spots on its face, and yellow fins swims among branching coral. The coral is light brown with fuzzy polyps and fills the foreground, while the background is dark, highlighting the fish’s colors.

🔬 𝐍𝐞𝐰 𝐬𝐭𝐮𝐝𝐲 𝐢𝐧 𝐒𝐜𝐢𝐞𝐧𝐜𝐞 𝐀𝐝𝐯𝐚𝐧𝐜𝐞𝐬
An international team led by ZMT analysed 335 genomes of Caribbean hamlet fishes. Only one gene showed a clear link to differences between species. It's active in skin, eyes, and brain & may be tied to colour patterns and mate choice.
www.science.org/doi/10.1126/...

Camera trap at night

Tonight is #EarthNight – lights off for insects!
Artificial light threatens moths, fireflies & other nocturnal species.

🌌 Tonight, Museum Koenig (LIB) will dim its facade lighting as a sign for insect protection.

Switch off your lights – and help biodiversity. 🦋

leibniz-lib.de/de/news/1909...

We’re filling the atmosphere with CO2 like a bathtub with water. Most of it stays for millennia.
That is why the cumulative emissions (the total amount, as pictured here) and not yearly emissions determine the amount of #globalwarming.

For the recent coral reef science arrivals, here are two starter packs so you can find your people! If you want to be added, please let me know. I have been adding people as they come through my feed. go.bsky.app/Qo5Gh2H go.bsky.app/QSafBeL 🌎🌊🧪🌐🐟🪸🐙🌿

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

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

Nautilus sex determination is unique among cephalopods Mechanisms for sex determination are highly diverse among animals and can evolve rapidly across taxonomic groups. This fundamental process dictates an…

#LIBresearch reveals that the ancient Nautilus uses a ZZ/Z0 system: males have two Z chromosomes (ZZ), females only one Z (Z0). They also found 36 genes linked to male reproduction, giving a peek into how these “living fossils” pass on their traits. 🔬

👉 www.sciencedirect.com/science/arti...

Animals that live at the ocean’s surface (Anthony et al. 2024 Current Biology)

Are you interested in open ocean organisms? Specifically the one's at the surface?
🪼 🐌 🌊
If so, message me. We are starting a collaborative community to exchange ideas and communicate research. The field is new, so let's push it in the right direction together! 💙

Copyright: unsplash, Svitlana Kolycheva

#LIBresearch finds African cichlids often lack fixed sex chromosomes—many use homomorphic, sometimes polygenic systems. Linkage group 3 (LG3), a chromosome, often carries sex-linked genes, but new sex-linked regions also arise across lineages.

👉 doi.org/10.1093/jeb/...

#evolution #genetics

Genome sequence analysis provides evidence that a boreal crustacean colonised Svalbard well before the ongoing Atlantification of the Arctic - Heredity Heredity - Genome sequence analysis provides evidence that a boreal crustacean colonised Svalbard well before the ongoing Atlantification of the Arctic

A new article of the team published in @heredityjournal.bsky.social #PopGen #MarEvol
Congratulations to Hedvig for her brilliant work on this project.

Atlantification is dead, long live genetic atlantification!

www.nature.com/articles/s41...

New paper Alert, out now in @currentbiology.bsky.social

The staghorn coral (Acropora cf. pulchra), subject of the genetic diversity study. Copyright: © David Combosch

New studies from @Leibniz_LIB reveal how genetic diversity and microbiomes can boost reef resilience and support targeted restoration. Science is paving the way – now action must follow. Our contribution to today's #InternationalConservationDay.
➡️ Read more: leibniz-lib.de/en/news/2807...