Entonces ¿qué? ¿A robar bocadillos a la playa? Gaviota de Audouin (Ichthyaetus audouinii).

El mes de julio sigue siendo época de cría para muchas aves, incluso para aquellas que tienen que compartir la playa con los bañistas. Este pollo de Chorlitejo patinegro de apenas 5,3 gramos nació hace solo 2 días. Su anillamiento ayudará a estimar la supervivencia de esta delicada fase vital.

Are you interested in #gulls, diet metabarcoding, or both? Of course you are! Check out our new preprint where we use molecular methods to decode the (animal-based) diet of lesser black-backed gulls - arguably a species with one of the most diverse diets out there. www.biorxiv.org/content/10.6...

bioRxiv Ecology@biorxiv-ecology.bsky.social · 2w ago

Evaluating DNA metabarcoding to characterise diet diversity and foraging strategies in a generalist mesopredator, the lesser black-backed gull (Larus fuscus) https://www.biorxiv.org/content/10.64898/2026.07.17.738687v1

#Archaea Gene duplications, rather than horizontal gene transfers from bacteria, seem to be the primary drivers behind the increased genome sizes in Asgard archaea #evolution #microbes @tonigabaldon.bsky.social @microbiobits.bsky.social

Phylogenomics of Asgard archaea reveals a unique blend of prokaryotic-like horizontal transfer and eukaryotic-like gene duplication - Nature Communications

The genomes of Asgard archaea, the closest prokaryotic relatives to eukaryotes, are larger than those of other archaea and contain multiple genes seemingly acquired from bacteria. Here, Manzano-Morales and Gabaldón quantify gene duplication, loss, and transfer events in Asgard genomes, showing that gene duplications, rather than horizontal gene transfers, are the primary drivers behind the increased genome sizes.

dlvr.it

Our paper on the phylogenomics of Asgard archaea got featured in Nature Communication's Editor's Highlights! 🔗 www.nature.com/collections/...

Microbiology and infectious diseases

This page highlights recent articles on all aspects of bacteriology, mycology, parasitology and virology, covering the biology of pathogens, host-pathogen ...

nature.com

1/ Out today in Science (@science.org): a result a decade in the making, and one that changed how I think about what cells are doing when they grow. We found a bacterium that grows slower than it could. And we found the molecular switch that lets us reverse it.

🦠 How did our cells originate? A study by @gabaldonlab.bsky.social at @irbbarcelona.org & @bsc-cns.bsky.social suggests cellular complexity emerged gradually over millions of years, rather than from a single evolutionary event. 📝 Published in @nature.com #BISTCommunity 👉 bist.eu/a-study-by-i...

El 18 de juny de 1907, es va fundar l’Institut d’Estudis Catalans, que tenia per objecte «la superior investigació científica de tots els elements de la cultura catalana». Demà, l’IEC celebra el seu 119è aniversari amb una jornada de portes obertes. 🕙 De 10 h a 14 h ❌ Sense reserva prèvia

Gene ancestries reveal diverse microbial associations during eukaryogenesis Fantastic paper from @microbiobits.bsky.social @tonigabaldon.bsky.social and colleagues. www.nature.com/articles/s41...

Gene ancestries reveal diverse microbial associations during eukaryogenesis - Nature

Phylogenomic reconstruction of the proteome of the last eukaryotic common ancestor sheds light on the origin of eukaryotes, indicating an important role of horizontal transfer of genes from diverse ba...

nature.com

¿De dónde venimos? El gran salto evolutivo del que surgieron las células complejas que nos conforman es un enigma. Un estudio de @irbbarcelona.org y @bsc-cns.bsky.social revela que hay más actores implicados de los que pensábamos El 'ménage à trois' celular 👉 www.elconfidencial.com/tecnologia/c...

🦠 How did our cells originate? A study by #IRBBarcelona & @bsc-cns.bsky.social by @gabaldonlab.bsky.social, suggests cellular complexity arose through long-term microbial alliances rather than a single evolutionary event. @nature.com ➡️ https://shorturl.at/kCij7 📌 DOI: 10.1038/s41586-026-10639-9

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...

The new OrthoFinder paper is out now! In this new work, we introduce major advances in accuracy and scalability, allowing analysis on much larger datasets www.nature.com/articles/s41... github.com/OrthoFinder/...

OrthoFinder: improved phylogenetic orthology inference with enhanced accuracy and scalability - Nature Methods

The updated OrthoFinder v3 software boosts accuracy and scalability in phylogenetic orthology inference with massive and diverse datasets.

nature.com

Where the tree of life is empirically resolved, and where it is not: an open atlas of species-level phylogenies and their archival uncertainty https://www.biorxiv.org/content/10.64898/2026.05.31.729127v1

New #ISEPpapers by @deemteam.bsky.social! Reversal to osmotrophy in eukaryotes www.nature.com/articles/s41... "Distant eukaryotic lineages convergently reverted from predation to osmotrophy through co-option of bacterial genes and their mobilization via eukaryote-to-eukaryote HGT" #Protists

How The Death Of The Dinosaurs Is Why We Sleep At Night The theory that supports this is known as the “nocturnal bottleneck hypothesis” Temporal niche expansion in mammals from a nocturnal ancestor after dinosaur extinction🧪 www.nature.com/articles/s41... (👉For image Treemble from treemble.org.)

Chromatin organization in Asgard archaea: histones, SMC complexes, and the archaeal roots of eukaryotic chromatin: Trends in Genetics www.cell.com/trends/genet... New review by @jvhooff.bsky.social & @damelab.bsky.social

Chromatin organization in Asgard archaea: histones, SMC complexes, and the archaeal roots of eukaryotic chromatin

The genomes of organisms across the tree of life are structurally and functionally organized into chromatin. In eukaryotes, within an organelle called the nucleus, chromatin is shaped by histones and ...

cell.com

📣🧬 Postdoc Alert🧬📣 We are hiring a 2+ year NERC-funded postdoc at Edinburgh Uni investigating causes and consequences of sex differences in recombination in house sparrows in Norway. Informal enquiries welcome at Susan.Johnston@ed.ac.uk 🙂 Details here: elxw.fa.em3.oraclecloud.com/hcmUI/Candid...

Today we sued the Trump administration for deciding not to protect American horseshoe crabs under the Endangered Species Act. Horseshoe crab populations have plummeted by more than 70% in recent decades because of overharvesting, especially from biomedical companies. Learn more ➡️ biodiv.us/4afSj2x

Interesting new tool to extract phylogenies from images (Tremble). It is crazy that this is still something we have to do. doi.org/10.1093/bioi...

Treemble: a graphical tool to generate Newick strings from phylogenetic tree images

AbstractSummary. Phylogenetic trees are ubiquitous and central to biology, but most published trees are available only as visual diagrams and not in the ma

doi.org

Sandpiper 2 is up. 913,000 metagenomic community profiles w @ace-gtdb.bsky.social R232, 200k more than 1.0. sandpiper.qut.edu.au GlobDB coming. Thanks to @aroneys.bsky.social @thepatientwait.bsky.social @iambrettb.bsky.social and especially the new kid @nhstefan.bsky.social

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

Even when you’re engrossed in your projects, there’s always the subtle reminder that out there, life moves on 🍃. The chicks of our resident ruddy shelducks (Tadorna ferruginea) are already showing the tiniest hint of their adult feathers

#post Read our "behind the paper" blog post on our latest publication on #Asgard phylogenomics to get a starter on the significance of our findings. by @microbiobits.bsky.social and @tonigabaldon.bsky.social Enjoy 👇 communities.springernature.com/posts/how-th...

Interested in Asgard archaea? @tonigabaldon.bsky.social and I wrote a small blog post on our most recent paper about these fascinating group of prokaryotes and their genome dynamics: go.nature.com/4uPLY5W

How the closest relatives of eukaryotes grew a larger genome

Asgard archaea have emerged as key organisms to understand eukaryogenesis. Among their many fascinating features is their atypically large genomes. Here, we dive deep into Asgard genome evolution to u...

go.nature.com

Our preprint on the 'Origins of Eukaryotic Metabolism' is out! Take a look at some of the new findings on the origin of eukaryotic membranes, metabolic integrations between archaeal and bacterial ancestors, and other fascinating prokaryotic interactions during eukaryogenesis. doi.org/10.64898/202...

🌍Per què augmenten les malalties transmeses per animals? 🦟La investigadora ICREA del BSC @drrachellowe.bsky.social treballa per entendre com els factors ambientals i climàtics influeixen en la propagació de malalties.

Can you believe that until now there were more genomes sequenced for the woolly mammoth than for living African elephants? Today, we bring you the first genomic, continent-scale analyses of 232 high-quality genomes of both species, the savanna and forest elephant. www.nature.com/articles/s41...

This is: a) an easily foreseeable consequence of selling access to large datasets like the UK Biobank. b) horrifying beyond belief. Biobank says that the data was deidentified, but in practice it is easily reidentifiable in many cases.