Iker Irisarri

Iker Irisarri

@ikeririsarri.bsky.social

Digging genomes🔬to travel back in time 🦖 #Evolution #Phylogenomics #MajorTransitions Ramón y Cajal Researcher at MNCN-CSIC, Madrid

288 followers299 following22 posts

Iker Irisarri reposted

The deadline to apply as the new Mammal Curator at the Natural History Museum Denmark is coming up soon (2 November 2026)!! Get your application in, or forward the ad to someone you know who dreams of being a curator in a historical and important collection! 🧪

Dr Mark D. Scherz@markscherz.bsky.social

🚨We're hiring a new Curator of Mammals!!🚨 🦍🐕🦝🐅🦓🦌🐃🐖🐏🐫🐘🦏🦛🐿️🦔🦇🦥🦦🦨🦘🦡🐋🦭🦒🧸 Come join the Vertebrate Unit at @nhmdk.bsky.social—a fantastic team in the heart of Denmark's beautiful capital! Amazing collections, incredible history. Please share widely! 🧪🏛️ candidate.hr-manager.net/ApplicationI...

"The species-poor branches, sometimes referred to as “early diverging,” are often viewed as key sources of information about deep evolutionary history. [...] we show that the information contributed by species-depauperate lineages to ancestral state reconstructions is surprisingly limited." ▶️

academic.oup.com'Early-Diverging' Lineages Provide Little Information about AncestorsAbstract. Large phylogenetic trees are often unbalanced near the root, with a species-depauperate lineage sister to a far more species-rich clade. The spec

"the accuracy of ancestral state reconstructions at the root node is determined primarily by the species-rich clade and, more specifically, the evolutionary distance separating that clade from the root, rather than by the character state or evolutionary rate of the “early-diverging” sister lineage."

We compared skin-associated bacterial communities with those in seawater and substrate biofilms. The divergence between skin and substrate #microbiomes parallels fishes’ preference for increasingly terrestrial habitats along the intertidal zone in Guam

New blenny genome 🐠🧬 with a cool bunch of colleagues 😀

Genome Biology and Evolution@genomebiolevol.bsky.social

Valencia-Cárdenas et al. assembled nuclear and mitochondrial genomes of the amphibious fish Istiblennius linneatus, obtaining 24 pseudochromosomes and a highly complete nuclear assembly. 🔗 doi.org/10.1093/gbe/... 📷 David Burdick #genome #evolution

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Iker Irisarri reposted

New paper on @biorxiv-evobio.bsky.social: Are interphylum spiralian relationships resolvable? doi.org/10.64898/202... @maxjtelford.bsky.social and I tried answering this question with two independent phylogenomic datasets. (1/7) 🧪

doi.orgAre interphylum spiralian relationships resolvable?The phyla making up the major animal clade of Spiralia have been clear since the advent of molecular phylogenetics; the relationships between these spiralian phyla have not. The lack of consensus over the relationships between these important animal phyla might be a clue implying their emergence in an explosive radiation. Focusing on the five largest spiralian phyla (Annelida, Brachiopoda, Mollusca, Nemertea and Platyhelminthes) and using two phylogenomic datasets, we have applied site-bootstrapping and taxon-jackknifing to explore this example of taxonomic instability. Analyses on the 105 possible rooted trees relating them showed that interphylum branches are very short. Preference for rooting Spiralia on Platyhelminthes is a long-branch artefact. Most analyses on the 15 unrooted trees showed a preference for the same topology but the support over other solutions was non significant. We conclude that the spiralian phyla emerged in rapid succession resulting in a difficult to resolve radiation. The deep history we infer for Spiralia has wide ranging implications for our interpretation of Cambrian fossils and for the evolution of traits such as biomineralization, segmentation and larvae. Impact Statement Analyses of two independent phylogenomic datasets suggest an explosive radiation at the origin of Spiralia, with implications for understanding the group’s evolutionary history. ### Competing Interest Statement The authors have declared no competing interest.

Iker Irisarri reposted

Interested in insects, spiders and trait-based biodiversity research? This PhD project at LIB and the University of Hamburg might be for you — or someone you know!

Mariella Herberstein (she/her) 🌈@mherberstein.bsky.social

I am looking for a PhD working on tracking trait changes in insects/spiders at the Leibniz Institute for the Analysis of Biodiversity change @leibnizlib.bsky.social and the University of Hamburg. Apply here: www.uni-hamburg.de/en/stellenan...

Iker Irisarri reposted

Microbial eukaryotes keep challenging assumptions about eukaryotic cell and genome biology. Our upcoming workshop explores the frontier of protist genomics and how it shapes cell biology, ecology and evolution. Please save the date! Talks, posters and ECR events Websites and details coming soon

Iker Irisarri reposted

Wow! Remarkably complete story on the logic of phenotypic plasticity in a predatory protist - congrats @cellraiser.bsky.social et al!

Scott Coyle@cellraiser.bsky.social

How do cells adapt morphology to function? In a 🔥 preprint by @zjmaggiexu.bsky.social , with @dudinlab.bsky.social and @amyweeks.bsky.social , we identify a self-organizing single-cell morphology circuit that optimizes the feeding trap structure of the suctorian P. collini. 🧵 tinyurl.com/4k8nv926

Iker Irisarri reposted

Del 4 al 16 de noviembre se celebra la semana de la ciencia (si, son dos semanas aunque por el nombre parezca una) Tienes toda la información en el enlace pero yo te recomiendo especialmente el homenaje a Jane Goodall que tendremos el jueves 12 mncn.csic.es/es/Comunicac...

mncn.csic.esEl MNCN presenta su propuesta de actividades para la Semana de la Ciencia | Museo Nacional de Ciencias NaturalesHabrá un homenaje a Jane Goodall en el que Rebeca Atencia, considerada su sucesora, hablará de su experiencia con la primatóloga

Iker Irisarri reposted

Iker Irisarri reposted

Iker Irisarri reposted

🔔 Last days to apply! Don't miss the opportunity to join the first Winter School organized by @atlasea.bsky.social - From Sampling to #ReferenceGenome Acquisition 🐚🪸🌊🧬 @ebpgenome.bsky.social #training #genomics #workshop #genomes

ATLASea@atlasea.bsky.social

🎓 Only 6 days left to apply for the ATLASea Winter School 2025! Join us in December for training in marine genomics & biodiversity: From Sampling to Reference Genome Acquisition at Banyuls-sur-Mer Marine Station 🌊🧬 📍 Info & apply: www.atlasea.fr/atlasea-wint... #Training #WinterSchool #Genomics

Join us on this interesting @ergabiodiv.bsky.social BioGenomes Analysis & Applications seminar. Today at 12h CEST!

🔔 This Monday, June 23rd at 12:00 CEST: 🌱 Target Capture Sequencing Approaches to the Study of Plant Evolution Join us live: www.youtube.com/live/0wfzw_N... #TargetCapture #Genomics #PlantEvolution #Hyb-Seq #evolutionarygenomics #biodiversity #research #researchseminar @ibb-botanic.bsky.social

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