Alexa Sadier

C'est sorti ! Un reportage des équipes du CNRS sur nos recherches et l'importance d'étudier la diversité des chauves-souris et leur evolution. Une occasion aussi de découvrir la splendeur de Trinidad et nos collaborateurs grâce aux images de notre film Spectral @erc.europa.eu @isemevol.bsky.social

Preprint alert 🔔 Very excited to share our story and my favourite chapter from my PhD in the @mcgregorlab.bsky.social Cheers to everyone who collaborated with us 🕷️🪱🪼🐠🪳 We definitely earned our “beer bellies”🍻 www.biorxiv.org/content/10.6...

Our Dept. of Genetics and Developmental Biology at the Institut Curie in the heart of Paris is hiring a new junior PI. It has a nice start up package and excellent I. Curie facilities. Please spread the word: Deadline Dec. 18th! jpi-recruitment-curie-umr3215-u934.curie.fr

How does an embryo build itself? Join experimentalists and theorists as they discuss the principles of biological forms, from molecular mechanisms to whole organisms #EESDevelopment

60% d'augmentation des dépôts ERC Starting. 5% de taux de réussite planifié (from @alexis-verger.cpesr.fr). ec.europa.eu/info/funding...

How does gene expression change during regeneration? Are specific enhancers activated or is there extensive genome re-modelling? Working with the team of Guillermo Orsi, we show that insect (cricket) and crustacean (Parhyale) genomes become re-modelled on a genome-wide scale.

Our paper’s out! 🐟👀 How does the four-eyed fish Anableps see in air and water at once? It expanded its air-facing ventral retina and redeployed existing opsins there. Congrats Louise Perez @perezlouise.bsky.social & Lina Shi! www.nature.com/articles/s41...

6-month internship to explore (genome-wide) enhancer-promoter interactions in the crustacean Parhyale – Hosted by the Averof and Ghavi-Helm teams at IGFL Lyon – Early 2027 – Student (any level) with some prior experience in mol biol – Stipend 695 €/month

We’re developing a database of opsins—light-sensitive protein. One reason is to simulate the evolution of color sensitivity. Seth Frazer and I joined student journalist Momin Ahmed Khaki to discuss our work in this SICB interview: youtu.be/MIEy79nv5N8

Recently, preparing a talk made me think @ the impact of AI in #DevBio and led me to ask AI what would it do to explain the SM #organizer expt just w/ data w/o conceptual input from human interpretation of experiments. Its answer below 🧵

🧵 Out today in Nature Communications! How did an ancient reshuffling of the genome shape 3D genome architecture and gene regulation in squid, cuttlefish & octopus? 🦑🐙 We combined Micro-C, RNA-seq & ATAC-seq across species, developmental stages & tissues. doi.org/10.1038/s41467-026-77625-7

A Jurassic platypus-like swimmer with evidence for suckling. Paper in @nature.com - www.nature.com/articles/s41...

My new ANR project has officially started yesterday! #MECHAMORPH will unravel some secrets of the evolutionary success of #snakes! We will look at head and skull shapes and their multiple functions using an interdisciplinary approach. Stay tuned! Special thank to my brother for his killer logo 💚🐍

From six bat species to covering 103 genomes across all 21 bat families 🦇🧬 Two beautiful batty Nature covers, years of collaboration, and an incredible community behind every genome. 🌍🌎🌏 We are proud and excited for what’s next. Our goal: sequence the genome of every bat species!

Development wants to help you publish and it’s easy to submit to us. We offer pre-submission enquiries, format-free submission and competitive handling speeds. We are a Review Commons affiliate journal, and offer Fast track journal transfers. More reasons to publish:

Exciting news! We here at the LSU Museum of Natural Science @lsumns.bsky.social and Dept. of Biological Sciences are looking for Curator and Assistant Professor of Vertebrate Paleobiology! Come work with us! We are fun, supportive and active! lsu.wd1.myworkdayjobs.com/en-US/LSU/jo...

Just published! 🦇wings are big and thin, and likely represent an important route of exposure for sprayed pesticides! Great work led by Dr. Natalia Sandoval-Herrera! @utscbiology.bsky.social @utsc.utoronto.ca 🧪 linkinghub.elsevier.com/retrieve/pii...

As an astrobiologist, I never thought I’d see my name on a cancer paper...but here we are 😮

Salaire des enseignants : quarante ans de décrochage qu’aucune mesure n’a permis de freiner

For the last 34 years I have been on the faculty of the UNC-Chapel Hill Department of Biology and have never regretted that decision. This year we are hiring TWO new Assistant Professors in the broad area of Molecular, Cell, Developmental Biology 1/n bio.unc.edu

Un départ tout en douceur pour #Podcast #Science Nouvel épisode sorti du four ! 🍰🥳 Sur la thématique du sucré 🍨 Un avant-GOÛT des très prochaines Radio-Dessinées du 3-4 octobre qui arrivent (vous pouvez toujours vous y inscrire !) À déguster dès maintenant 🍫 : www.podcastscience.fm/emission/202...

Ce soir, ce mercredi 23 septembre 20h30 (UTC+2) #Podcast #Science 🎙️ revient tout en douceur pour une nouvelle saison. 🥰 Douceur, car on va parler du : SUCRÉ 🍭🍫🍨 On enregistre le prochain épisode en live avec vous, ça vous dit ? 👀 Lien vers le live en commentaire ⬇️

C'est la rentrée pour @podcastscience.fm ! www.podcastscience.fm/emission/202... Et pour l'occasion, je vous ai concocté une chronique tout en plumes, à lire sur SSAFT : ssaft.com/Blog/dotclea... Ft. Zizi Jeanmaire mais aussi des convergences évolutives, des piafs et beaucoup de sucre !

En charge des crèches, des collèges, de la protection de l'enfance, des aides aux personnes âgées ou handicapées et du RSA, ces agents estiment avoir épuisé tous les recours d'alerte en interne. En sous-effectifs constants, ils dénoncent des conséquences graves sur les salariés et leurs missions.

The curious case of the placental genome In this Review, Zoé Ducarne, @agathechaigne.bsky.social and @myanhtruong.bsky.social highlight the placenta, the only mammalian organ that harbors a cancer-like genome while remaining functional and healthy. doi.org/10.1242/dev....

Les chauves-souris présentent l’une des plus incroyables trajectoires d’évolution chez les mammifères. On en connaît plus de 1500 espèces ! Comment cette diversité est-elle apparue ? Pour le savoir, direction les grottes et les forêts de Trinité-et-Tobago. Reportage avec lemonde.fr

MERFISHEYES: Web-based Visualization and Sharing Platform for Single-cell and Single-molecule Spatial Transcriptomics https://www.biorxiv.org/content/10.64898/2026.09.20.753029v1

INÉDIT 🎬 Comment les chauves-souris ont-elles donné naissance à une telle diversité ? 🦇 Avec plus de 1500 espèces, leur évolution est fascinante. Pour le savoir, direction les grottes et les forêts de Trinité-et-Tobago. 🌴 Le reportage complet 👉 lejournal.cnrs.fr/videos/les-c...

If you're an ECR or postdoc in need of funding to travel for an experiment or to learn a new technique, make sure you apply for a JEB Travelling Fellowship www.biologists.com/grants/trave... #PostdocAppreciationWeek #NPAW #PostdocAppreciation Find out more at doi.org/10.1242/jeb....

🦇 Bat1K's biggest paper yet is out. Largest bat genome + fossil study ever: 103 genomes, 44 fossils, 137 researchers. We rewrote the bat family tree! Bats likely originated in Europe ~65 million years ago, not Asia, Africa or Americas. @bat1kgenomes.bsky.social doi.org/10.1038/s41586-026-11007-3

Where did bats come from?🦇🌍 After decades of debate, the biggest bat genome + fossil study ever done has an answer - and it’s not where anyone expected! 🤩OUR PHASE 1 FLAGSHIP is out today in nature! doi.org/10.1038/s415... A thread 🧵

Our latest paper on building models of cell fate decisions -with David Rand, Marine Fontaine & @joadelas.bsky.social- combines developmental biology, dynamical systems theory and bioinformatics. I wrote a short piece to summarise it & explain ideas behind the approach briscoelab.org/blog-quantif...

"Philosophy of Biology: The power of theory in the life sciences" elifesciences.org/articles/112... @zdblount.bsky.social shared this thought-provoking paper with the lab group.

Our collaborative paper on snake coiling is now out in the latest issue of @currentbiology.bsky.social and featured on the cover! 🎉 Delighted to see our work highlighted this way. You can read it here: authors.elsevier.com/c/1ni9h3QW8S... @helsinki-biotech.bsky.social @helsinki.fi

Excited that our new paper with @henrylabsymbio.bsky.social and Kerry Oliver is out @pnas.org! We show that mobile genetic elements can spread adaptive host-benefiting traits across heritable insect symbionts on eco-evolutionary timescales.🧵 www.pnas.org/doi/10.1073/...

🚨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...

NEW PREPRINT! An evo-devo look at how new cerebellar nuclei are made. Spoiler: it’s all driven by region-specific excitatory progenitors in the early rhombic lip; inhibitory neurons fill in later. If you care about brain evolution or cerebellar development, check it out: tinyurl.com/CNdevelopment

There is still time to apply for the EMBL International PhD Programme! 📢 Don’t miss this opportunity to receive dedicated mentoring while doing interdisciplinary research. Research groups across EMBL are recruiting now! bit.ly/4x9Edss

Must admit, ever since I was a kid, I’ve dreamt of seeing microscopy images of #protists in @lemonde.fr Today, protists are everywhere, and several images were taken by the team. And seeing #ichthyosporeans there too?! 🥹 One step closer to showcasing the beauty of the invisible microbial world. 🔬✨

21627 applications. Nothing to celebrate here. Impossible to evaluate fairly & safely. Neither the science (too diverse & possibly LLM generated) nor the soft criteria (likely LLM generated). Without an interview stage - a security risk! marie-sklodowska-curie-actions.ec.europa.eu/whats-new/ne...

Mechanisms of Phenotypic Evolution from Molecules to Organisms: Integrating Evolutionary Biochemistry and Evolutionary Developmental Biology https://pubmed.ncbi.nlm.nih.gov/42751651/ #EvoDevo

Are you a senior scientist looking to expand your scientific horizons through a sabbatical? 🔬 Then the EMBL Sabbatical Programme is a great opportunity for you! You could receive up to €15,000 and be based at any of EMBL’s six sites for 3 to 6 months. 🔗Apply here: bit.ly/sabbatical26

🔬🧪 We're hiring postdocs&engineers at Institut de la Vision in AMAZING Paris 🇫🇷!! Join a dynamic team working at the nexus of retina developmental biology, spatial omics & advanced imaging Ambitious science in a supportive & young inclusive team 🚀 DM me for more info & please share 🙏 #academicsky