Our paper on turtle origins is finally out in Current Biology, with two major implications for our understanding of reptile evolution 🐢 #Paleontology #Turtles #Evolution www.cell.com/current-biol...

Our research scientist Núria Ros-Rocher won the 1st prize @zeiss-microscopy.bsky.social microscopy contest with this beautiful choano colony www.zeiss.fr/microscopie/... 🥳 C. flexa might not yet be a genetic model, but it is now at least a calendar model, which counts for something. I think.

Why does life explore so few of the forms it could possibly take? Using fractal descriptors, this #scienceadvances paper shows that Earth’s biosphere clusters around simple shapes, reflecting deep evolutionary constraints. @artemyte.bsky.social @manlius.bsky.social www.science.org/doi/pdf/10.1...

Nature research paper: Genetic switch between unicellularity and multicellularity in marine yeasts go.nature.com/4poZ9HP

Genetic switch between unicellularity and multicellularity in marine yeasts - Nature

Myb1 functions as a switch-like regulator of state transitions in Hortaea werneckii, whereby its expression and degradation are coupled to nutrient conditions, stabilizing unicellular or multicellular growth.

go.nature.com

I’m pleased to share our latest preprint (my first as 1st-author) from Jérôme Gros’ group (@jeromegros.bsky.social), now on bioRxiv. It reports actin and myosin dynamics during epithelial remodeling in avian gastrulation. (doi: doi.org/10.64898/202...)

Actin and myosin dynamics during epithelial remodeling in avian gastrulation

Epithelial remodeling is powered by contractile forces exerted by the actomyosin cytoskeleton. In invertebrates, pulsatile contractile flows of the medio-apical actomyosin cortex have been shown to be...

doi.org

To build the body plan of an animal, cells must adhere to one another via cell-cell junctions. We now know these assemble as punctate protein complexes containing thousands of proteins, but how this occurs remains mysterious. 1/n 🧪 www.molbiolcell.org/doi/full/10....

Join us next week for the second Eastern VGZT of the season! 🤩 🗓️ Wednesday, December 10th ⏰ 9:00 UTC / 9:00 GMT / 10:00 CET / 14:30 IST / 18:00 JST / 20:00 AEDT Our speakers are: 👉 Guojun Sheng 👉 Jennifer Zenker See you there! ✨

Register now for the EMBO Workshop "Limb development and regeneration: Quantitative, ecological, and diversification studies" in #Tokyo, Japan, 23–27 March 2026. Abstract submission/Registration deadline: 12/15 December 2025 https://meetings.embo.org/event/26-limb-dev #EMBOLimbDev #EMBOevents 🧪

Interested in polarity and mechanics during epithelial morphogenesis? Considering joining us! Students to be hired initially as Research Associates. Postdocs encouraged to obtain fellowship, and we help/train you to do that. Apply to tinyurl.com/y6x489t5. Deadline Dec 15. Please repost!

Want to know why #microtubules should be depolymerised before #cyokinesis is completed. #mitosis #cellbiology #midbody Check out our new study in @jcellsci.bsky.social @bric-cdfd.bsky.social doi.org/10.1242/jcs....

Amazing day at #GastrulationReloaded with thought provoking science and jaw dropping methods. Also, for no reason at all, re-posting this open Collection: www.nature.com/collections/... Don’t sweat the deadline, we’ll extend it and I’ll add relevant papers that come to me @natcomms.nature.com

Organizers and self-organization in developmental biology

This collection highlights papers studying self-organization, symmetry breaking, and developmental organizers.

nature.com

Happy to share the last version of our story @currentbiology.bsky.social on the role of interfacial tension in mechanical cell competition led by @leovalon.bsky.social and Alexis Matamoro Vidal www.sciencedirect.com/science/arti...

New publication | Science Advances www.science.org/doi/10.1126/...

Plasticity of ventricle position after heart looping in heterotaxy with right isomerism

The left/right position of ventricles needs to be maintained after heart looping, an unexpected step affected in heterotaxy.

science.org

Fantastic work from Xi and Qi-long! Chicken ES cells will take classic chicken embryology to a new level.

Nature Biotechnology@natbiotech.nature.com · 10mo ago

A method to produce embryonic stem cells for a range of bird species opens up opportunities in agriculture, developmental biology and species conservation #NBTNV go.nature.com/4ntGnih rdcu.be/eJagy

Our calcium paper is out in PLOS Biology! Check it out! #Calcium #Embryo #Development

PLOS Biology@plosbiology.org · 10mo ago

During #development, distal visceral #endoderm (DVE) cells migrate to shape A-P axis specification. @m-stower.bsky.social @srinivas-lab.bsky.social &co reveal the role of Ca2+ dynamics in this, showing that inhibition of #calcium transients causes DVE arrest @plosbiology.org 🧪 plos.io/4nHWxF4

Latest from ours: www.cell.com/cell-reports... This is two stories in one: a case study/cautionary tale on developing genetic tools in new organisms, and the first hint at a gene regulatory network for choanoflagellate multicellular development (which turn out to involve a Hippo/YAP/ECM loop!) A 🧵

⏳ Still time to register + submit your poster abstract 🗓️ Deadline: Sept 19!

Jérôme Gros@jeromegros.bsky.social · last yr.

Registration is now open! Gastrulation Reloaded: Developing, engineering & evolving the body plan 📅 October 14–17, 2025 📍 Paris, France 🗓️ Abstract & early bird deadline: July 15, 2025 www.gastrulation-reloaded.conferences-pasteur.org/home Exceptional lineup of speakers & many selected talks

🎓 Applications for Institut Pasteur's PhD programs open Sept 1-Oct 20, 2025 for October 2026 entry. Apply to up to 4 projects across 6 programs: PPU, PPU-IMAGINE @institutimagine.bsky.social, PPU-@ox.ac.uk, PPU-EID @upcite.bsky.social & more 🧬 Register now ✍️ www.pasteur.fr/en/education...

🚨 theory/math devbio preprint alert!!! 🚨 Led by my v. talented PhD student, Daniel Muzatko, we’ve found some rather general and intriguing constraints on reaction-diffusion systems that allow them to self-organize developmental patterns: www.biorxiv.org/content/10.1...

🔈 We’re excited to welcome Jérôme Gros @jeromegros.bsky.social as an invited speaker at #ICDB2025! Jérôme's stunning in vivo imaging reveals the cellular mechanics driving vertebrate morphogenesis. 🎥🐣🧪

🚨New preprint Glad to share my postdoc work on the role of the hypoblast in primitive streak induction! Discover how live imaging observations led us to revisit the molecular mechanisms governing embryonic axis induction Thanks to @jeromegros.bsky.social and all co-authors! doi.org/10.1101/2025...

Live imaging and functional characterization of the avian hypoblast redefine the mechanisms of primitive streak induction

In birds and mammals, the formation of the primitive streak, the hallmark of the primary axis and site of gastrulation, is thought to occur when an anterior displacement of the hypoblast (visceral end...

doi.org

📢 Fresh off the press and featuring new exciting experiments! 🧪 We show how glycolytic activity instructs germ layer proportions through regulation of Nodal and Wnt signaling - happy to finally share this 😊 doi.org/10.1016/j.st... B2B with @jesseveenvliet.bsky.social lab: doi.org/10.1016/j.st... 🤩

Pu Zhang @puzhang.bsky.social, Taylor Medwig-Kinney @tmedwigkinney.bsky.social, & colleagues from the Goldstein lab found that a population of Arp2/3 recruited to where cells touch each other makes an unexpected contribution to apical constriction rupress.org/jcb/article/...

Out now @naturecomms.bsky.social with extra analyses & data: how distinct gene regulatory dynamics specify vertebrate skeletal cells from three embryonic lineages, how this makes them 'distinct cell types' and what it implies for their evolutionary trajectories > rdcu.be/ecbM2 👏👏 to all co-authors!

Distinct gene regulatory dynamics drive skeletogenic cell fate convergence during vertebrate embryogenesis

Nature Communications - Vertebrate skeletogenic cells of different embryonic origins are distinct cell types, based on their lineage-specific gene regulatory logic that specifies them, and the...

rdcu.be

ICYMI: Discover new insights on chromosome size sensing by kinetochores, mechanical resistance at tight junctions, force-exerting focal adhesions formed by T cells, and how nuclei serve as mechanical bumpers, in our new #Mechanobiology collection 👉 https://buff.ly/3EK0uaq

Check out our latest paper in Science Advances, in which we built a constriction-based microfluidic device to measure the deformability of oocytes to assess their mechanical properties with minimal impact. www.science.org/doi/10.1126/...

Noninvasive characterization of oocyte deformability in microconstrictions

A microfluidic measurement method translates oocyte mechanical characterization into oocyte quality assessment.

science.org

If you like snowflakes, check our new preprint about axial patterning in brittle stars ⭐ We looked at the expression of anteroposterior patterning genes in Amphipholis squamata juveniles, and compared it with existing data from other classes www.biorxiv.org/content/10.1... @lowelab.bsky.social

Our article on the evolution of pallial circuits is out www.science.org/doi/10.1126/... 🥳 Eneritz Rueda-Alaña & Fernando García-Moreno led this study that proves how similar adult pallial neurons are generated in different regions and timepoints. Evolutionary CONVERGENCE of neurons & circuits! 🦎🐤🐭

Evolutionary convergence of sensory circuits in the pallium of amniotes

The amniote pallium contains sensory circuits that are structurally and functionally equivalent, yet their evolutionary relationship remains unresolved. We used birthdating analysis, single-cell RNA a...

science.org

Our lab has multiple open positions for post-docs to study the regulation and function of cytoplasm mechanics during embryo development. Details below 👇👇 Please Repost !!! @ijmonod.bsky.social @cnrs.bsky.social