Teresa Rayon

@trayon.bsky.social

Developmental biologist. EvoDevo & comparative stem cell dynamics 🐭⌛️👤⏳. Group Leader @babrahaminst.bsky.social. @sebioldev.bsky.social board member.

A thoughtful piece on what it means to be a postdoc: *independence is about moving forward without all answers *use science conversations to make sense of uncertainty, beyond presenting results *a postdoc is as much about learning to think & adapt as it is about generating data & publishing

eLife@elife.bsky.social · 2d ago

A postdoc comes with challenges and uncertainties different from those of a PhD. In this ecrLife blog Vartika Sharma shares how managing expectations and building a community are key skills that can help us navigate the new uncertainties of a postdoc.

🐙 Octopuses appear to have evolved a ribosomal innovation that increases protein translation fidelity. *suggests that evolution can tune core components of the proteostasis machinery, extending adaptation beyond gene regulation www.biorxiv.org/content/10.6...

Evolution of a core ribosomal innovation in octopus

Much of biology focuses on how genetic changes mediate new functions, but less attention is given to adaptations in other steps of the central dogma. Octopuses exhibit complex nervous systems and soph...

biorxiv.org

How does an embryo generate the right cells in the right place? Delighted to share our latest findings on how neural crest cells acquire vagal or trunk identities Spoiler alert: The timing & combination of CDXs preconfigures cell identity & distinct HOX states www.biorxiv.org/content/10.6...

Temporally distinct CDX programmes preconfigure vagal and trunk neural crest

Neural crest cells (NCCs) are progenitor cells vital in establishing the head, heart, gut and peripheral nervous system of vertebrate embryos. Disruptions to NCC development underlie neurocristopathie...

biorxiv.org

In case you missed this preprint - check it out now! Determining Species-specific tempo per cell between fishes 🐟 ⌛️ 🐠 ⏳ Congrats to Jess, Mike et al!

Mike Dorrity@mwdorr.bsky.social · 2mo ago

First pre-print from the lab, a collaborative effort led by Jess Bourn @bournsupremacy.bsky.social, a fantastic PhD in my group. We resolve a key problem in development + evolution: how do we quantify heterochrony and link temporal variation to phenotype? www.biorxiv.org/content/10.6...

The 2nd part of my postdoc is now out as a preprint! A challenging but fulfilling team effort to perform genome editing in opossums. We found that the lncRNA RSX is essential to initiate X-inactivation in marsupials 🦘 A long-standing question since the discovery that Xist is absent in marsupials 👇

Turner Lab@lab-turner.bsky.social · 4w ago

New preprint 📢 Thrilled to share our long-awaited work on the role of RSX in marsupial X-inactivation. This was a huge team effort over the years, led by @aureliencourtois.bsky.social @sermenchero.bsky.social Sugako Ogushi and Waz Varsally, that allowed us to set up genome editing in opossum embryos

AI ranking shows familiar cracks: figure vs text evaluation, the Matthew effect & male last author bias Celebratory signals for visibility are already popping up too. This experiment feels like an emerging curation space *we need to shape and exploit AI systems beyond simple approval loops

QED Science@qedscience.bsky.social · last mo.

🎉 Meet The 1%. Out of 57,455 bioRxiv life science preprints, QED Science selected 574 exceptional manuscripts through blind evaluation. The 1%: the-one-percent.qedscience.com Good science deserves to be seen. @biorxivpreprint.bsky.social @openrxiv.bsky.social @richardsever.bsky.social

Congrats Elisa!! 🍾 💡🧪 An innovative study using human stem cell-derived spinal cord organoids to explore neural tube morphogenesis, patterning, and function. A strong example of the originality & excellence of #DevBio research in Spain.

SEBD@sebioldev.bsky.social · last mo.

Today we congratulate #SEBD member Elisa Marti @ibmb-csic.bsky.social for being one of this year’s awardees of the ERC advanced grants! With her project SpinaLogic her research group aims to unravel the direct conection between the genetic mutations associated with Spina bifida (1/2)

Beautiful piece on how field-specific journals with high ethical standards, such as Development, don’t try to « Game » the impact factor system - and practical steps to move away from this inherently flawed metric as a researcher (see Box 2)

James Briscoe@jamesbriscoe.bsky.social · 2mo ago

As Editor of @dev-journal.bsky.social I get asked "What are you doing about your impact factor?" In our new editorial we say: Ask not what Dev can do for the impact factor. Ask what you can do for Dev's IF The IF is about how we all cite, review & assess each other's work doi.org/10.1242/dev....

so in 2021, I watched a CSR advisory council meeting and one observation made was that overt negative bias during review was rare but that positive bias, or "halo" effects, that tends to favor white, established PIs at elite institutions was more common

Needhi Bhalla 💅🏽@needhibhalla.bsky.social · 3mo ago

I performed an analysis of who received R37s for the 30+ years NIGMS had them (1986-2017, when it was limited to established PIs with 10 years of continuing funding) and there was evidence of gender bias influencing these decisions. I’ll probably repost that thread soon

Some of this has already been demonstrated: for example, despite similar success rates in first time funding, women experience more barriers renewing funding and having more than one R01, contributing to uncertainty and limitations in funding.

(9/15) Eels achieve 120 segments not by altering the core clock machinery (conserved) or its rate (similar to zebrafish) — but by heterochronically extending the duration of segmentation & decoupling it from overall developmental progression. Modularity in action !

No change to eligibility for the upcoming calls 👏🏻👏🏻credit to the council for listening Tight budgets & high application pressure reflect both the programme’s success and the broader funding gap in science 🧪 This is a moment to rethink how we assess proposals, not to limit who can apply

European Research Council (ERC)@erc.europa.eu · 3mo ago

NEWS: The ERC Scientific Council has listened to the concerns from members of the research community about changes to the re-submission rules, intended to manage the surge in demand for grants. The Scientific Council will readjust some of the changes: link.europa.eu/TBqRQJ