Glad to see this out at last! Check out Arnau's summary below for all the highlights

Arnau Sebé-Pedrós@arnausebe.bsky.social · 2d ago

Happy to share the final version of our study on the evolution of chromatin states across eukaryotes, out today in @natgenet.nature.com Led by @crisnava.bsky.social and @seanamontgomery.bsky.social www.nature.com/articles/s41... Some highlights below

Happy to share the final version of our study on the evolution of chromatin states across eukaryotes, out today in @natgenet.nature.com Led by @crisnava.bsky.social and @seanamontgomery.bsky.social www.nature.com/articles/s41... Some highlights below

Diversity and evolution of chromatin regulatory states across eukaryotes - Nature Genetics

This study introduces iChIP2, a low-input chromatin immunoprecipitation followed by sequencing method that profiles histone post-translational modifications (hPTMs) simultaneously across diverse eukar...

nature.com

Fascinating seaweeds of the UK www.bbc.co.uk/news/article...

How scientists finally confirmed rare pink seaweed as new species

An ancient algae first spotted four decades ago will now join the collection of the Natural History Museum.

bbc.co.uk

Ruibao's first paper from the lab is out in @nature.com . www.nature.com/articles/s41.... Collab with @multicellgenome.bsky.social & @jennahed.bsky.social. How did cells stick together and form the first animals? The protist Ministeria suggests cellular aggregation had a role. @iuqcb.bsky.social

A unicellular relative links aggregative multicellularity to animal origins - Nature

Aggregative multicellularity was key to the evolution of the multicellular animal genetic toolkit.

nature.com

Our new preprint is out! We investigate chromosome organization in obligate mammalian symbionts and show that these bacteria maintain stable chromosome orientations while displaying conserved lifestyle-associated chromosome architectures across species. www.biorxiv.org/cgi/content/...

Bacteriocins in archaea and archaeocins in bacteria. @romainstrock.bsky.social surveys the the exchange of molecular weaponry between archaea and bacteria. www.biorxiv.org/content/10.6...

Bacteriocins in archaea and archaeocins in bacteria

Archaea and bacteria routinely live side by side in microbial communities and must interact at least on occasion. Whether such cross-Domain interactions are dominated by mutual disregard, co-operation...

biorxiv.org

Preprint alert: the final two chapters of my thesis are out! www.biorxiv.org/content/10.6... Bacteriocins in archaea and archaeocins in bacteria: a computational journey into the search for weaponry borrowed from another domain of life. A short 🧵

Bacteriocins in archaea and archaeocins in bacteria

Archaea and bacteria routinely live side by side in microbial communities and must interact at least on occasion. Whether such cross-Domain interactions are dominated by mutual disregard, co-operation...

biorxiv.org

So happy to share our new paper out now in @natmicrobiol.nature.com! We establish Pirsonia-Coscinodiscus as a model pathosystem and uncover how this tiny parasite infects and kills bloom-forming marine diatoms 🌊🦠 rdcu.be/fuQyF

Out @cp-cellhostmicrobe.bsky.social, natural products meet bacterial immunity! We used genomics to identify lanthivirins: a family of >2,000 lanthipeptide BGCs that protect Actinobacteria against phages. Led by @hshomar.bsky.social & @mariegllm.bsky.social www.sciencedirect.com/science/arti...

A family of lanthipeptides with anti-phage function

Bacteria produce natural products to adapt to their environments, with phage interactions as major ecological and evolutionary drivers. While some nat…

sciencedirect.com

www.cell.com/molecular-ce... I'm happy to see our work published! If you are interested in transposons, transcriptional regulation and Pol III come and check it out 👀 🧫 🧬

ChAHP silences SINE retrotransposons by inhibiting TFIIIB recruitment

SINEs are short transposable elements that make up large fractions of mammalian genomes. Known to be transcribed by RNA polymerase III, their regulation has remained largely unexplored. Schnabl-Baumga...

cell.com

Our group is moving from @mpi-bio-fml.bsky.social to the maritime city of Kiel! ⛵️🩵 I will lead the Department of Marine Plant Development and Physiology @uni-kiel.de 🌱🪸🌊 Look out for opportunities to join us in this exciting & growing hub for Plant, Marine & Evolutionary Biology in North Germany 🇩🇪

Emergence of histone-based chromatin complexity in Asgard archaea https://www.biorxiv.org/content/10.64898/2026.07.02.735847v1

Excited to share our new preprint led by Fred and me in collaboration with the archaeal community! We found that the molecular foundation of histone-based chromatin has pre-eukaryotic roots in Asgard archaea. (1/4) #ArchaeaSky www.biorxiv.org/content/10.6...

Emergence of histone-based chromatin complexity in Asgard archaea

The emergence of the eukaryotes coincided with the diversification of histone proteins and their post-translational modifications by enzymes that constitute the core of eukaryotic chromatin. Yet the e...

biorxiv.org

Humbled and incredibly grateful to have been elected to the @embo.org Membership. Many thanks to everyone who has supported me throughout this journey, Mentors, Collaborators and Trainees alike. Special thanks to @odedrechavi.bsky.social for proposing my nomination. It is a tremendous honor. 🙏

EMBO Press@embopress.org · last mo.

🏅Thrilled to see @yehumoran.bsky.social elected to the membership of @embo.org! Yehu was instrumental in forming an #ecology & #evolution advisory board for our journals while serving as Academic Editor, where he now continues as an advisor. #EMBOMembers2026 www.embo.org/press-releas...

Our latest work on immune receptor engineering for enhanced pathogen recognition is out in @theplantcell.bsky.social academic.oup.com/plcell/artic... #NLRs #Effectors #Exo70

Engineering an Exo70 integrated domain of a barley NLR for improved blast resistance

Engineering the barley NLR RGH2 enhances recognition of blast pathogen effectors from rice and wheat, leading to improved disease resistance.

academic.oup.com

1/7 New preprint: we found that Chlamydomonas carries a giant and unexpectedly elaborate chloroplast RNA polymerase with 12 previously unknown subunits, overturning the idea that the complexity of this organellar enzyme emerged during plant terrestrialization! www.biorxiv.org/content/10.6...

The structure of a 2-MDa chloroplast RNA polymerase reveals unexpected evolutionary complexity

Transcription in chloroplasts depends on the Plastid-Encoded RNA polymerase (PEP), a bacterial-derived enzyme whose catalytic core remains encoded by the highly reduced genome inherited from the cyano...

biorxiv.org

Excited to share our new preprint! 🧬❄️ by brilliant @mdreimann.bsky.social and great collaborators! Using cryo-ET&EM, we reveal archaeal chromatin in a near-native state: variable-beads-on-a-string fibers shaped by growth phase and histone composition #ArchaeaSky www.biorxiv.org/content/10.6...

I'm excited to share that one of the main outcomes of my PhD research was published in @pnas.org this week!! Thank you to everyone involved in this work! @johandecelle.bsky.social More details here: lnkd.in/emwBFun3 Thanks to @cnrsbiologie.bsky.social for covering our work: lnkd.in/ex9GmJNe

Archaea are the hornets of the microbial world. Discuss. www.biorxiv.org/content/10.6... TLDR: Archaeon kills bacterium with secreted phospholipase. Pretty nifty way to kill bacteria for a microbe with a very different lipid make-up, I reckon. No need to worry about accidentally killing yourself.

Our paper "Gene ancestries reveal diverse microbial associations during eukaryogenesis.” is finally out in Nature. Eukaryogenesis was likely a gradual process shaped by multiple microbial partners and virus-mediated gene transfer, rather than a single binary symbiosis. doi.org/10.1038/s415...

10/10 Perhaps aggregation is not an evolutionary dead end after all! Perhaps it was one of the evolutionary experiments from which animal multicellularity emerged. Link: www.nature.com/articles/s41... @icreacommunity.bsky.social #AnimalOrigins #Evolution #Multicellularity

The genomic basis of evolutionary stasis in the 500-million-year-old red seaweed genus Ahnfeltia https://www.biorxiv.org/content/10.64898/2026.05.26.727817v1

1/8 Inside your body lies something ancient. Our @pnas.org paper uncovers the deep unicellular prehistory of blood cell types. See paper and video. @ibe-barcelona.bsky.social @icreacommunity.bsky.social @prbb.org @csic.es @csicdivulga.bsky.social pnas.org/doi/10.1073/...

Our work is out now! (www.science.org/doi/10.1126/...). We discover a selective autophagy pathway that protects plants from the mess caused by RNA viruses. Intrigued? Follow the spaghetti trail for a summary of our findings🧵-->

Selective autophagy fine-tunes plant immunity to promote cell survival during viral infection

RNA viruses co-opt host endomembranes to form replication complexes, often triggering cellular stress and immune responses. Here, we show that Arabidopsis thaliana activates selective autophagy to res...

science.org

1/ Our new paper in Systematic Biology "Modeling Site-and-Branch-Heterogeneity with GFmix" led by @cgpmcc.bsky.social describes improved ways to model compositional heterogeneity across both sites and branches—an important source of error in deep phylogenomics. doi.org/10.1093/sysb...

Modeling Site-and-Branch-Heterogeneity with GFmix

Abstract. Phylogenetic trees are often inferred from protein sequences sampled from diverse taxa across the tree of life. The compositions of these amino a

doi.org

Happy to announce that I have started my own research group at the MPIPZ and that I am looking for a postdoc who would like to investigate Marchantia prothallus development with me! Please spread the word and/or apply if interested :)

Max Planck Institute for Plant Breeding Research@mpipz.bsky.social · 2mo ago

Looking for a #postdoc? 📣We are #hiring📣 Join the Wallner Group @mpipz.bsky.social to work on tissue patterning, polarity & body axes formation with the liverwort Marchantia polymorpha.🌿 Apply now! #plantsci 👉https://jobs.mpipz.mpg.de/jobposting/54b1ba6d403b8a106f2595c1ef1171f8d729bb720?ref=homepage

@joshnhamm.bsky.social @ndombrowski.bsky.social @greening.bsky.social @luisvalentin.bsky.social et al. provide the first investigation into the enigmatic Terrarchaeota and insights into the evolution of high salt adaptation in Archaea. 🔗 doi.org/10.1093/molbev/msag091 #evobio #molbio #microbeSky

New lineages provide insights into the convergent evolution of extreme salt adaptation within symbiotic Archaea

Abstract. Environmental genomics has led to the discovery of many new lineages of archaea, including “DPANN” (or Nanobdellati), comprising organisms with s

doi.org

Sub-cellular chemical mapping using correlated cryogenic electron and mass spectrometry imaging online @natmethods.nature.com, led by Hannah Ochner, collaboration with @catfranco.bsky.social and @kiranrpatil.bsky.social labs doi.org/10.1038/s415...

Many eukaryotes are osmotrophic. Ocaña-Pallarès and colleagues show that this was made possible by horizontal gene transfer and the co-option of ancestrally acquired bacterial genes. www.nature.com/articles/s41...

Signatures of gene transfer in the parallel evolution of osmotrophic specialization in eukaryotes - Nature Ecology & Evolution

Comparative genomics of 86 eukaryotic species reveals a shared genetic toolkit enriched in metabolic functions among osmotrophs that was shaped by early horizontal gene transfer and more recent transf...

nature.com