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Iker Irisarri

@ikeririsarri.bsky.social

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

14 Posts276 Follower290 Folgt
Ana Serra Silva@anaserrasilva.bsky.social · 6mo ago

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) 🧪

Are 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.

doi.org

LIB@leibnizlib.bsky.social · 6mo ago

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 · 6mo ago

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...

Laura Eme@lauraeme.bsky.social · 8mo ago

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

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Iker Irisarri@ikeririsarri.bsky.social · 8mo ago

A new combtooth blenny genome just dropped! Assembled from recycled ONT data + HiC + RNAseq. Thanks, Nikita Kulikov, Kim Joffroy, @ambonacolta.bsky.social @delcampolab.bsky.social for your hard work

The chromosome-scale genome assembly of the redlip blenny, Ophioblennius macclurei (Blenniidae)

Abstract. Here, we present a high-quality, chromosome-scale genome assembly for the redlip blenny Ophioblennius macclurei (family Blennidae). The assembly

academic.oup.com

Thibaut Brunet@thibautbrunet.bsky.social · 9mo ago

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 · 9mo ago

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

Xiomara Cantera@xiomaracantera.bsky.social · 10mo ago

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...

El MNCN presenta su propuesta de actividades para la Semana de la Ciencia | Museo Nacional de Ciencias Naturales

Habrá un homenaje a Jane Goodall en el que Rebeca Atencia, considerada su sucesora, hablará de su experiencia con la primatóloga

mncn.csic.es