Stem Cells, Regeneration & Evolution stemdevevo

« La liberté académique est une condition de la démocratie elle-même » TRIBUNE. La France doit tirer une leçon de l’expérience américaine : sans statut juridique fort, la liberté académique ne résiste pas longtemps aux chocs politiques, explique, dans une tribune au « Mo...

www.lemonde.fr/idees/articl...

01.03.2026 16:35 — 👍 63 🔁 25 💬 0 📌 1

Glob-glob! Absolutely magical sea anemone larva (about 7 mm) from The Lombok Strait, Indonesia 🇮🇩

01.03.2026 13:11 — 👍 944 🔁 283 💬 13 📌 19

Final version @nature.com of our paper describing unconventional multicellular development in a choanoflagellate inhabiting an extreme environment. A ton of new data since the first @biorxivpreprint.bsky.social preprint (which we've kept updating).

A brief 🧵 (carried over from the old place)

28.02.2026 08:12 — 👍 243 🔁 95 💬 12 📌 5

Clonal-aggregative multicellularity tuned by salinity in a choanoflagellate - Nature The choanoflagellate Choanoeca flexa forms motile and contractile cell monolayers purely clonally, purely aggregatively or through a combination of both processes depending on environmental condi...

Clonal-aggregative multicellularity tuned by salinity in a choanoflagellate www.nature.com/articles/s41... #jcampubs

25.02.2026 17:06 — 👍 49 🔁 22 💬 0 📌 2

#Science #Biologie
🧬 « L’#ADN, acteur et témoin de l’évolution des animaux »
📌 Cours du Pr Denis Duboule, chaire #Évolution du développement et des #génomes.
⏰ 6 mars → 27 mars 2026
👉 https://www.college-de-france.fr/fr/agenda/cours/adn-acteur-et-temoin-de-evolution-des-animaux

24.02.2026 11:03 — 👍 9 🔁 4 💬 0 📌 0

Introducing a Clytia planula cell atlas, and demonstrating broad-level relations with medusa cells via another updated atlas. By @annaferraioli.bsky.social with @juliarmateu.bsky.social and collaborators in a project led by @rcply.bsky.social @biodev-vlfr.bsky.social www.biorxiv.org/content/10.6...

18.02.2026 06:59 — 👍 35 🔁 14 💬 0 📌 1

Are you interested in Comparative Developmental Biology? Great opportunity for grad students and Postdocs to take this 2 week course at the MBL in October 2026.

19.02.2026 14:13 — 👍 10 🔁 7 💬 0 📌 0

Regeneration of fins and limbs relies on a shared cellular playbook The findings strengthen the case that regeneration is an old trait, offering insights into how complex tissues rebuild themselves.

www.sciencenews.org/article/rege... @josanesousa.bsky.social @gabrielalima19.bsky.social @perezlouise.bsky.social @patyschneider22.bsky.social

18.02.2026 18:32 — 👍 96 🔁 15 💬 0 📌 2

La question c’est surtout vont-ils avoir la ref. ?

18.02.2026 19:12 — 👍 0 🔁 0 💬 0 📌 0

Neural connectome of the ctenophore statocyst Volume EM and connectome reconstruction of the apical organ of a ctenophore combined with high-speed imaging reveals a neuronal coordination of balancer cilia in the gravisensory organ.

In @eLife: Neural connectome of the ctenophore statocyst https://doi.org/10.7554/eLife.108420
Version of record of our ctenophore nerve-net connectome paper.

18.02.2026 10:30 — 👍 37 🔁 15 💬 2 📌 0

Evolution of monoamine reception and its role in cellular contractility.

How do #sponges coordinate their bodies despite lacking neurons and true muscles?

We show that sponges use monoamines to control water flow in their canals — reminiscent of how adrenaline regulates blood vessels.

My PhD story, now on BioRxiv:
www.biorxiv.org/content/10.6...
#Evolution

18.02.2026 13:34 — 👍 62 🔁 21 💬 3 📌 4

Un poste de Professeur des Universités va être ouvert lors de la campagne d’emploi 2026 à l’université Claude Bernard Lyon1 -
Profil Recherche : Biologie Moléculaire des Eucaryotes.
Profil Enseignement: Biologie Moléculaire.
Profil ci-joint.
Merci de diffuser dans vos réseaux.

17.02.2026 08:04 — 👍 14 🔁 20 💬 1 📌 0

Stellenanzeigen Archiv | Senckenberg Naturforschung

🚨 PhD position in annelid genomics (EuroWorm) 🚨

If you love biodiversity, evolution & bioinformatics — apply or share! 🪱🧬

Details here: www.senckenberg.de/de/stellenan...

#PhD #Genomics #Annelida #MarineBiology #EuroWorm

14.02.2026 01:10 — 👍 10 🔁 10 💬 0 📌 0

A scanning electron microscopy image of the ragworm Platynereis dumerilii. Photo credit: John Kirwan and Ola Gustafsson.

The ragworm Platynereis dumerilii does its mating dance in near total darkness, yet the adults have huge eyes with long light-sensing cells. Kirwan &co show that these cells help them see a tiny bit better helping them find mates to dance with in the dark

journals.biologists.com/jeb/article/...

12.02.2026 08:28 — 👍 6 🔁 2 💬 1 📌 0

Screenshot of the PDF of the first page of the Research Article, Dancing in the dark: the annelid Platynereis dumerilii is re-envisaged for its climactic final night, by John D. Kirwan, Emelie A. Brodrick, Jacob Bartholin, Morten Bartholin, Julius Friis Petersen, Cameron Hird, and Anders L. Garm. The publishing information states: © 2026. Published by The Company of Biologists | Journal of Experimental Biology (2026) 229, jeb251047. doi:10.1242/jeb.251047. The first sentence of the Abstract states: 'When sexually mature, the marine annelid Platynereis dumerilii emerges at night from its tube and swims to the surface in search of a mate'.

Read the full research here
journals.biologists.com/jeb/article/...

12.02.2026 08:28 — 👍 3 🔁 1 💬 0 📌 0

The 59th Annual Meeting of the Japanese Society of Developmental Biologists | Confit 第59回日本発生生物学会大会の電子抄録サイトです。

🚨🚨🚨 1/2
SFBD & JSDB joint meeting, June 9–12 in Hiroshima. Travel grants cover registration + part of travel/housing. Short talks & posters available. Students, postdocs & early-career researchers encouraged to apply by Feb 28.
pub.confit.atlas.jp/en/event/jsd...

11.02.2026 11:38 — 👍 9 🔁 7 💬 1 📌 1

Extracellular vesicles mediate stem cell signaling and systemic RNAi in planarians Planarian extracellular vesicles carry small RNAs that mediate systemic gene silencing and coordinate regeneration.

Extracellular vesicles mediate stem cell signaling and systemic RNAi in planarians | Science Advances
www.science.org/doi/10.1126/...

08.02.2026 12:07 — 👍 4 🔁 2 💬 0 📌 0

To turn spatial data into a 3D object, check our protocol (open source, napari plug-in). @guignardlab.bsky.social @adrianobolondi.bsky.social @ibdm.bsky.social
For example, if you have spatial RNA-seq as sections, you can align them automatically to analyse directly in 3D.
bio-protocol.org/e5607

06.02.2026 14:13 — 👍 17 🔁 8 💬 1 📌 0

New #research from the @planaria1.bsky.social Lab reveals how #planarian cells coordinate #regeneration across the body using extracellular vesicles to deliver gene-silencing RNAs. 🪱 Published in Science Advances.

🔗 Read more: bit.ly/4bYJ1tN

06.02.2026 21:51 — 👍 5 🔁 3 💬 0 📌 0

Whole-body single-cell atlas of an adult vertebrate in homeostasis and regeneration https://www.biorxiv.org/content/10.64898/2026.02.03.703562v1

06.02.2026 07:03 — 👍 11 🔁 4 💬 0 📌 1

BMC Biology is currently welcoming submissions of original research to the “Genome organization and evolution” Collection, which I am supporting as a Guest Editor.

If interested check out the link: www.biomedcentral.com/collections/...

Deadline: 26 March

#GenomeEvolution
@bmc.springernature.com

04.02.2026 11:19 — 👍 4 🔁 3 💬 0 📌 0

Time to publish responsibly: DAFNEE, a database of academia-friendly journals in ecology and evolutionary biology Abstract. The current economics of scientific publishing reveal a profound imbalance: academia pays prices far exceeding the actual costs of publication. R

Responsible publication of your research!

To help you do this @nicolasgaltier.bsky.social and coauthors have put together a handy database of academia-friendly journals, DAFNEE. You can read about it in their article recently published in @jevbio.bsky.social:

doi.org/10.1093/jeb/...

28.01.2026 11:17 — 👍 39 🔁 29 💬 0 📌 2

The Enterarchon: An ancient visceral brain The gastrointestinal (GI) tract is innervated by intrinsic neurites and extrinsic pathways linking it bidirectionally to the central nervous system. T…

🧨 Check out this peeps🧨 I am very happy with the outcome of this thought baby! @neurogut.bsky.social @michaelrera.bsky.social and Mael Lemoine (yes, a philosopher) twisted our brains over preparing this conceptual review! We give you the "Enterarchon" Enjoy it!
www.sciencedirect.com/science/arti...

02.02.2026 16:07 — 👍 21 🔁 9 💬 4 📌 2

Morphological, molecular, and functional evidence for a CNS-like oral nerve ring in the sea anemone Nematostella vectensis The emergence of centralized nervous systems reflects a major inflection point in evolution, enabling animals to integrate diverse inputs and coordinate complex behaviors. Neural centralization is typically associated with Bilateria, whereas their sister group, Cnidaria (jellyfish, anemones, and corals), has long been thought to rely on diffuse nerve nets mediating simple reflexes. This view, reinforced by limited anatomical and molecular data, has left unresolved whether cnidarians can form localized centers for neural processing, a question sharpened by the growing recognition of their diverse behavioral repertoires. Here we show that the sea anemone Nematostella vectensis possesses an oral nerve ring composed of ganglion-like condensations, a hallmark of centralized organization. These neurons are enriched for excitatory, inhibitory, and modulatory receptors but lack sensory or ciliary markers, yielding a molecular profile most consistent with bilaterian interneurons. Genetic disruption of a conserved inhibitory receptor subunit predominantly expressed in the oral nerve ring delayed the initiation of swallowing in a novel feeding paradigm, demonstrating a potential role in behavioral regulation. Together, these findings provide converging anatomical, molecular, and functional evidence that cnidarians can assemble localized integrative centers, suggesting that key elements of neural centralization predated the cnidarian–bilaterian split. ### Competing Interest Statement The authors have declared no competing interest. Stowers Institute for Medical Research

www.biorxiv.org/content/10.6...

30.01.2026 05:40 — 👍 9 🔁 2 💬 1 📌 0

We are excited to share that we are hosting a hands-on course on "Electron Microscopy of Marine Environmental Samples" 🔬🌊
📍Naples, Italy 🗓️ 8th-11th of April 2026
If you are interested, check the program below!
Registration is open until the 12th of February. We look forward to seeing you there!

20.01.2026 16:32 — 👍 22 🔁 9 💬 1 📌 2

Regenerating nerve fibers in the tail of an injured zebrafish larva. Credit to Dr. Sandra Rieger at University of Miami. #ZebrafishZunday 🧪

18.01.2026 11:03 — 👍 86 🔁 13 💬 3 📌 0

Epimutations: raw material for evolution? - The EMBO Journal Epigenetics is fundamental to cell differentiation as it enables cells with identical genomes to adopt distinct fates. Some epigenetic information can also be transmitted between generations, in a pro...

Epimutations: raw material for evolution?
Nabeel Ganem & @psarkies.bsky.social explore how epimutations mediating transgenerational epigenetic inheritance compare to DNA sequence mutations w.r.t. influence on drift and natural selection
link.springer.com/article/10.1...

16.01.2026 10:33 — 👍 11 🔁 4 💬 0 📌 0

Comment fonctionne l’hérédité ? Une nouvelle étude explore le rôle de l’épigénétique On transmet à sa descendance ses gènes, son ADN. Mais certaines espèces peuvent également transmettre un autre type d’information, dite épigénétique, qui indique quels gènes peuvent ou non s’exprimer.

Super vulgarisation de l'épigénétique dans cet article 👇

(Attention, si l'hérédité épigénétique transgénérationnelle est documentée chez les plantes, sur plusieurs générations dans cet article, et les vers de terre, y a pas de preuves solides chez les humains.)

theconversation.com/comment-fonc...

15.01.2026 06:49 — 👍 91 🔁 20 💬 4 📌 2

Soon you’ll be able to read an updated version of our paper at Nature Communications! Congratulations to all the authors for all of their hard work. @kuangtse.bsky.social @evodevo-tw.bsky.social and others not on the socials!

14.01.2026 00:23 — 👍 15 🔁 3 💬 0 📌 0

Swipe to see how HCR™ Gold differs from HCR™ (v3.0). v3.0 remains supported for ongoing experiments; however, all new products are compatible only with HCR™ Gold. Simpler, more robust, higher resolution RNA-FISH starts here.

💡 Starter Kit: tinyurl.com/yyuc7bvx
🛒 Shop: tinyurl.com/4jj6uvvd

14.01.2026 18:22 — 👍 0 🔁 1 💬 0 📌 0

Posts by Stem Cells, Regeneration & Evolution (@stemdevevo.bsky.social)