Sign in

Alberto Perez-Posada

@apposada.bsky.social
159 followers 197 following 19 posts

Beatriu de Pinós Fellow at @crg.eu . Gene regulation, omics & single cell, development, evolution.

PostsRepliesMedia
Reposted by Alberto Perez-Posada
Iñaki Ruiz-Trillo @multicellgenome.bsky.social · 20h
A new sea urchin joins the evo-devo toolkit! Great to see Mespilia globulus established as a new model. @ferdix.bsky.social @elife.bsky.social One model can reveal a specific mechanism. Multiple models can reveal how evolution works. elifesciences.org/reviewed-pre...
1111
Reposted by Alberto Perez-Posada
Iñaki Ruiz-Trillo @multicellgenome.bsky.social · 28/09/2026
We have a new branch in the family tree of animals: Atreyea- a previously unrecognized lineage among the closest unicell relatives of animals. Led by @konsmitsi.bsky.social & @freejakoba.bsky.social together with a fantastic team of collaborators. 🔗 papers.ssrn.com/sol3/papers.... #protistsOnSky
111545
Reposted by Alberto Perez-Posada
Emma Evans @trance.bsky.social · 26/09/2026
www.nbcnews.com/world/spain/...
nbcnews.com
Anger grows across Spain after elderly woman evicted from her home of 70 years
Maricarmen Abascal, 87, was removed from the Madrid apartment she had called home since 1955. Her eviction has fueled anger about Spain’s housing crisis.
12010
Reposted by Alberto Perez-Posada
Fonsi Loaiza @fonsiloaizap.bsky.social · 27/09/2026
Así está ahora mismo la Puerta del Sol con la acampada por la vivienda digna y la manifestación por la educación pública.
24895332
Reposted by Alberto Perez-Posada
An Laetificat @anlaetificat.bsky.social · 26/09/2026
ACAMPADA EN SOL MANIFESTACIÓN POR LA VIVIENDA
412839
Reposted by Alberto Perez-Posada
elDiario.es @eldiario.es · 27/09/2026
Cientos de personas amanecen en la acampada de la plaza del Sol www.eldiario.es/politica/ult...
11348129
Reposted by Alberto Perez-Posada
Joaquina Delas @joadelas.bsky.social · 22/09/2026
If you are curious about quantitative and predictive cell date decisions landscapes but our 14 figure paper seemed just a bit daunting, have a look at James' linked summary.
12012
Reposted by Alberto Perez-Posada
Institut Jacques Monod @ijmonod.bsky.social · 22/09/2026
📢 Paris Postdoc Seminar 📅 October 6th 📍Institut Jacques Monod Sophie Peron ( @institutimagine.bsky.social ) will present a @parispostdocs.bsky.social on the theme " Coordination between cell cycle and differentiation in planarian stem cells" ➡️ buff.ly/7swy9Oy
042
Alberto Perez-Posada @apposada.bsky.social · 21/09/2026
Last week to apply!
000
Reposted by Alberto Perez-Posada
Martin A. Nuñez @martin-nunez.bsky.social · 18/09/2026
1217
Alberto Perez-Posada @apposada.bsky.social · 15/09/2026
2 weeks left to apply!
000
Reposted by Alberto Perez-Posada
Alberto Perez-Posada @apposada.bsky.social · 09/09/2026
3 weeks left to apply! Are you an Undergrad/MSc student? Interested in bioinformatics, single cell analyses, evolution, and developmental biology? Looking for a potential research project? We are offering one fellowship for such an intership at CRG! Apply at: www.crg.eu/en/content/t... RT/share!
crg.eu
Centre for Genomic Regulation Website
036
Reposted by Alberto Perez-Posada
Charlotte Wright @charlottewright.bsky.social · 26/08/2026
Delighted this huge team effort is out! By surveying >20,000 people from >100 countries, we used to butterflies to show that aesthetic biases distort scientific research & environmental policy. Understanding this bias is a key step towards more balanced decision-making 🦋 www.doi.org/10.1016/j.cu...
47828
Alberto Perez-Posada @apposada.bsky.social · 09/09/2026
3 weeks left to apply! Are you an Undergrad/MSc student? Interested in bioinformatics, single cell analyses, evolution, and developmental biology? Looking for a potential research project? We are offering one fellowship for such an intership at CRG! Apply at: www.crg.eu/en/content/t... RT/share!
crg.eu
Centre for Genomic Regulation Website
036
Reposted by Alberto Perez-Posada
Ryan Marino, MD @ryanmarino.bsky.social · 08/09/2026
OpenAI set $22M on fire just to steal $1M from a human who did the actual work, and that’s the business plan our economy is betting everything on? Lol.
181632486
Reposted by Alberto Perez-Posada
Nozomu Yachie @nzmyachie.bsky.social · 04/09/2026
Maybe it’s time to say goodbye to UMAP and other low-dimensional embeddings (at least in many single-cell analyses). We developed MILK to encode single-cell populations into tree representations at unprecedented scales. www.biorxiv.org/content/10.6... Here’s what MILK is: 🧵
14425
Reposted by Alberto Perez-Posada
Elizabeth Beston @elizabethbeston.bsky.social · 03/09/2026
Check out this lovely chonks of a Spionidae bristle worm larva! So squishable! #marineplankton 🦑
3359
Reposted by Alberto Perez-Posada
Gemma Martínez Redondo @gemmaeling.bsky.social · 03/09/2026
What a nice feeling to come back from holidays and see the last paper of my PhD finally published in its final form in @natcomms.nature.com !! www.nature.com/articles/s41... Want to learn a bit more about the genomic basis of animal terrestrialization? A thread 🧵1/14
nature.com
Convergent genomic trajectories shape adaptation to life on land across animal lineages - Nature Communications
Animals have moved from water to land many times, but whether they used the same genetic routes has remained unclear. This study shows that independent land transitions relied mostly on ancient, conse...
1135
Reposted by Alberto Perez-Posada
Ben Hopkins @brhopkins92.bsky.social · 28/08/2026
What does it take to evolve a new trait? We have a new paper out that uses the Drosophila sex comb—a male-specific grasping structure found in a subset of drosophilids—as a model to answer this question 1/11
33311
Alberto Perez-Posada @apposada.bsky.social · 28/08/2026
"Collectively, we’re submitting, and publishing, substantially fewer papers than we used to back in 2020. And there’s not much sign in the data that [...] we ever will get back to normal." Science (all of it) peaked in 2021 dynamicecology.wordpress.com/2026/01/14/s...
dynamicecology.wordpress.com
Science (all of it) peaked in 2021
An ecologist friend* noticed that the annual number of times he’s been cited grew throughout his career up until 2021, when it peaked. It then declined for a couple of years straight. Then it…
000
Reposted by Alberto Perez-Posada
Veronika Meduna @veronikameduna.bsky.social · 27/08/2026
An abrupt glacier collapse triggered the Nepal floods. In a warming climate, the "Himalayas are especially vulnerable, because the steep slopes of many of these very tall mountains are made of permafrost", writes Levan Tielidze @monashuniversity.bsky.social theconversation.com/tsunami-of-d...
theconversation.com
Tsunami of dirt: what caused Nepal’s deadly glacial flood?
The glaciers of the Himalayas aren’t safe from climate change. The sudden collapse of a glacier looks to have triggered disaster in Nepal.
0118
Reposted by Alberto Perez-Posada
Craigie 🇵🇸 🇸🇩🚩☮️🔻Proudly Un-British @craigsmive.bsky.social · 17/08/2026
Right wing media vampires who hounded Jason Arday to death go into panic mode and delete posts and articles responsible. www.thecanary.co/trending/202...
thecanary.co
Media outlets delete posts, stories relating to deceased Jason Arday
Given that several outlets are now deleting stories and posts relating to Jason Arday, it seems like they can't be very proud of their output
076
Reposted by Alberto Perez-Posada
Byline Times @bylinetimes.bsky.social · 11/08/2026
🟡 From This Month’s Magazine Reform UK and Big Tech Palantir Co-Founder Peter Thiel’s ‘Political Pipeline’ Recruitment Project at the World-Renowned… By Byline Times raising The academic institution has nothing to say in response to a six-month investigation by Byline Times raising serious…
subscribe.bylinetimes.com
Reform UK and Big Tech Palantir Co-Founder Peter Thiel’s ‘Political Pipeline’ Recruitment Project at the World-Renowned University Revealed
The academic institution has nothing to say in response to a six-month investigation by Byline Times raising serious concerns about the safeguarding of students and hard-right and foreign influence at Cambridge…
3213141
Reposted by Alberto Perez-Posada
Tristan Stewart-Robertson @srtristan.bsky.social · 15/08/2026
And the full link is as brutal as the graphic.
newscord.org
Jason Arday told the press he was at his limit. It answered with 188 more articles. He is dead at 41.
A full census of the 249 articles fifteen national outlets published about Jason Arday in 22 days, with the last day reconstructed hour by hour. Every article listed and linked.
26975379
Reposted by Alberto Perez-Posada
Mike Levin @drmichaellevin.bsky.social · 12/08/2026
#preprint, two very bright and motivated high-school students: Nikhil Dev and Angelina Nguyen www.biorxiv.org/content/10.6... "Trained Planaria Retain Memories Through Head Regeneration: A Model System for Insights into Non-Neural Memory and Neurodegenerative Diseases"
biorxiv.org
Trained Planaria Retain Memories Through Head Regeneration: A Model System for Insights into Non-Neural Memory and Neurodegenerative Diseases
Planaria exhibit remarkable regenerative ability, including the capacity to regrow complete heads and brains after decapitation. Here, we re-investigated whether regenerated planaria can preserve lear...
0143
Reposted by Alberto Perez-Posada
Keishu Asada @cephwarden.bsky.social · 13/08/2026
Worms like gummy bears swimming up to the surface to spawn. They are probably not complete polychaete worms, but instead, segments that detach and swim away from the main body just for spawning, while the actual worm stays safe and snug in its den somewhere below.
0126
Reposted by Alberto Perez-Posada
Marc A. Marti-Renom @mamartirenom.bsky.social · 08/08/2026
🚨the latest from the lab! 😃👇🏻 www.science.org/doi/10.1126/...
science.org
3D genome organization in tissue regeneration involves long-range chromatin loops
Chromosome conformation analysis in Drosophila wing discs reveals the requirement of specific meta-loops during regeneration.
15723
Reposted by Alberto Perez-Posada
Isabel Almudi @isabelalmudi.bsky.social · 07/08/2026
What happens when evolution adds an extra pair of eyes? Male mayflies evolve an extra pair of dorsal compound eyes, the Turbanate eyes, thought to help males detect females during mating swarms. we have investigate how this remarkable evolutionary novelty develops. www.biorxiv.org/content/10.6...
623493
Reposted by Alberto Perez-Posada
Rafael D. Acemel @rdacemel.bsky.social · 06/08/2026
Full offer:
056
Reposted by Alberto Perez-Posada
Rafael D. Acemel @rdacemel.bsky.social · 06/08/2026
The Acemel lab is #hiring!! :) We are looking for a PhD student to join us at @cabd-upo-csic.bsky.social to study developmental plasticity, epigenetics and evolution using medaka 🐟 and AI models 💻 . Deadline for applications 4th of September. See more details 👇
199
Reposted by Alberto Perez-Posada
Arnau Sebé-Pedrós @arnausebe.bsky.social · 03/08/2026
Happy to share the final version of our study on the evolution of chromatin states across eukaryotes, out today in @natgenet.nature.com Led by @crisnava.bsky.social and @seanamontgomery.bsky.social www.nature.com/articles/s41... Some highlights below
nature.com
Diversity and evolution of chromatin regulatory states across eukaryotes - Nature Genetics
This study introduces iChIP2, a low-input chromatin immunoprecipitation followed by sequencing method that profiles histone post-translational modifications (hPTMs) simultaneously across diverse eukar...
1018481
Reposted by Alberto Perez-Posada
Jay Shendure @jshendure.bsky.social · 31/07/2026
Thrilled to post thread re: new single-cell lineage of mouse embryo reconstructed w/ DNA Typewriter. One animal, zygote to late organogenesis (E13.5). Tree has 1,340,794 transcriptionally profiled, annotated tips (cells), 1,142,588 dated internal nodes, rooted at zygote 1/n
313458
Reposted by Alberto Perez-Posada
Engadget @engadget.com · 29/07/2026
DeepMind's award-winning AlphaFold team is no more.
engadget.com
Google shuts down its Nobel-prize winning AlphaFold project as it focuses on Gemini - Engadget
18225
Reposted by Alberto Perez-Posada
Schmidt Ocean Institute @schmidtocean.bsky.social · 29/07/2026
These echinoderms are related to sea stars, urchins, and sand dollars. Some, called sea lilies, live on stems attached to the seafloor, while others can move about (and are called feather stars like this one). Recorded at 1,092 m during the #DeepWonders expedition led by @divaamon.bsky.social
09626
Reposted by Alberto Perez-Posada
Peter du Toit @peterdutoit.com · 26/07/2026
You see everything is connected. The marine heatwaves off the coasts of Europe make heatwaves on land more intense, which in turn dries out vegetation, which then creates perfect fire weather conditions. Brought to you by the world's refusal to drastically reduce the burning of fossil fuels.
eu-space.europa.eu
Ongoing marine heatwave in the Atlantic Ocean and Mediterranean Sea | EU Space Support Office
In late May 2026, several countries in Western Europe faced above-average temperatures. During the same period, large areas of the Atlantic Ocean and the Mediterranean Sea also recorded above-average ...
8532611664
Reposted by Alberto Perez-Posada
Thibaut Brunet @thibautbrunet.bsky.social · 25/07/2026
No, these images are not AI-generated, not even photoshopped. They do look artificial because there is something artificial about them: the extra 150 ppm of CO2 resulting from human activity, which has irretrievably transformed the world.
2286
Reposted by Alberto Perez-Posada
Noesporpresumir @noesporpresumir.bsky.social · 25/07/2026
No puedo estar más de acuerdo con esto que dice Ignacio. Las causas de los incendios son muchísimas y muy complejas. Se viene chapa de ingeniería de montes.
2437257
Reposted by Alberto Perez-Posada
Enard/Hellmann Lab @enardhellmannwg.bsky.social · 17/07/2026
We’re really excited to announce that CroCoNet, our framework for cross-species network comparisons, is now out in Genome Biology! 🎉 If you work with scRNA-seq data from multiple species and want to make meaning comparisons while accounting for noise, check it out: doi.org/10.1186/s13059-026-04152-5
131
Reposted by Alberto Perez-Posada
Arnau Sebé-Pedrós @arnausebe.bsky.social · 20/07/2026
The third chapter in our coral single-cell trilogy is here. After mapping cell type diversity in Stylophora (Levy 2021) and exploring facultative symbiosis in Oculina (Levy 2025), we now uncover cell type-specific responses to heat stress. Find out more in @xgrau.bsky.social's thread below.
biorxiv.org
Cell-resolved transcriptional responses during heat-induced coral bleaching and recovery
Coral reefs depend on an intracellular symbiosis between cnidarian hosts and photosynthetic dinoflagellates that is disrupted by ocean warming, causing coral bleaching. Yet how these responses are dis...
14818
Reposted by Alberto Perez-Posada
Xavier Grau-Bové 🌾 @xgrau.bsky.social · 20/07/2026
I'm happy to share our latest on #coral single-cell biology: a transcriptomic timecourse of heat stress in Stylophora pistillata, from bleaching to recovery 🪸🌊 This project was spearheaded by Shani Levy and carried through in @arnausebe.bsky.social's lab at @crg.eu. www.biorxiv.org/content/10.6...
Stylophora pistillata colony from the Red Sea. Picture by Hagai Nativ.
23411
Reposted by Alberto Perez-Posada
Centro Andaluz de Biología del Desarrollo @cabd-upo-csic.bsky.social · 15/07/2026
#CABDseminars "From DNA Damage to Translation Shutdown" by Pedro Ortega @pedroorteg.bsky.social , @cabimer.bsky.social 🗓️ July 17th ⏰12 pm 📍Rosalind Franklin Auditorium, CABD Hosted by Peter Askjaer
012
Reposted by Alberto Perez-Posada
CSIC @csic.es · 09/07/2026
🤔¿Cómo se estableció el "arriba y abajo" de las extremidades en los vertebrados hace más de 400 millones de años? 💡Un estudio internacional coliderado por el @ibbtec.bsky.social y el @cabd-upo-csic.bsky.social explica el interruptor genético que lo hizo posible ➡️ tiny.cc/2de6101
0105
Reposted by Alberto Perez-Posada
Prof. Stefan Rahmstorf @rahmstorf.bsky.social · 08/07/2026
This new study estimates the risk of triggering an #AMOC shutdown as >10% if the world ramps down emissions to net zero by 2060, and 80% for a high emissions path. 🌊 It’s based on ensembles with one model, but plausible based on overall knowledge on how fragile AMOC is. e360.yale.edu/digest/amoc-...
e360.yale.edu
Collapse of Atlantic Currents May Already Be ‘Locked In’
4235113
Reposted by Alberto Perez-Posada
Eskuero @eskuero.fromshado.ws · 09/07/2026
Los españoles que han votado a favor del ChatControl (votan en contra de la derogación), los que votan contra ChatControl (voto a favor de la derogación) y los que no votaron (ojo no es abstención, nadie se abstuvo, simplemente no trabajaron)
11116
Reposted by Alberto Perez-Posada
Patrick Breyer @echo-pbreyer.digitalcourage.social.ap.brid.gy · 09/07/2026
🇪🇸 🇪🇺 El Parlamento Europeo deja pasar el #ChatControl 1.0 pese a que una mayoría votó en contra (314:276), permitiendo el escaneo masivo de chats privados hasta 2028. Las víctimas advierten de sus riesgos. Mi análisis 👇 […]
digitalcourage.social
Original post on digitalcourage.social
01420
Reposted by Alberto Perez-Posada
Tuta @tuta.com · 09/07/2026
🚨 #ChatControl 1.0 HAS PASSED - despite a majority voting against it (314:276) 🚨 After the EU parliament has rejected #ChatControl TWICE in the past, it has been pushed as an urgent procedure for a new plenary vote. TODAY the EU parliament has voted YES for #ChatControl 1.0😡
Parliament President Roberta Metsola (EPP) who revived Chat Control 1.0 shaking hands with Mark Zuckerberg.
28289281
Reposted by Alberto Perez-Posada
Amro Hamdoun @hamdounlab.bsky.social · 07/07/2026
More than a decade since CRISPR-Cas9 knock in came on the scene, it's remained underutilized in emerging models. Using transposase, and a split-FP system, we built an optimized knock in system for use in the genetically-enabled urchin, Lytechinus pictus. bit.ly/4wswLsd
23812
Reposted by Alberto Perez-Posada
depths of wikipedia @depthsofwikipedia.bsky.social · 08/07/2026
8811150
Reposted by Alberto Perez-Posada
Gaspar Jekely @jekely.biologists.social.ap.brid.gy · 06/07/2026
FENS 2026 - the only file format the organisers accepted was pptx. I offered html, pdf - did not get far. In the end I gave a chalk talk (there was no chalk). Not good for #DigitalIndependence "The Document Foundation, creators of #LibreOffice and promoters of the OpenDocument format (ODF), has […]
biologists.social
Original post on biologists.social
241
Reposted by Alberto Perez-Posada
Gaurav Vaidya @gvaidya.bsky.social · 01/07/2026
The first preprint from my PhD is out! :thread: How does an animal choose between two completely different reproductive fates? Here’s how one planarian does it :point_down: www.biorxiv.org/content/10.6...
biorxiv.org
Life-cycle trajectory inference links temperature-gated progenitors to reproductive fate
Temperature shapes reproductive strategies across animals, yet how individuals switch between sexual and asexual reproduction remains unknown. We establish the planarian Phagocata morgani as a model f...
13715