We probably shouldn’t have favourites amongst projects in the lab, but this one was mine. I’m so pleased we can finally share it: Our work is now out in Nature Communications: 🔗 nature.com/articles/s41467-025-67692-7

Congrats @jeffgroh.bsky.social et al. Some avocado trees open female-phase flowers in the morning & then male in afternoon. Others show complementary pattern (m->f), to synchronize pollination of two types. Jeff show this to be a >45Mya polymorphism at a transcription factor across 100s of species.

Our Xmas present all wrapped and nicely packaged, a collab with @karsten-rippe.bsky.social lab within the realm of the @spp2202.bsky.social

This story is absolutely wild. Did you know that avocados change sex over the course of a day? And that it's controlled by a single ancient balanced polymorphism? This is flat our crazy

Love this paper from @evahoermanseder.bsky.social and team; great to see it out. This is definitely "epigenetics" by any definition, but I wonder if it's premarking for activation or protecting against stable silence (i.e, DNAme), similar to Dppa2/4 targets in mammals www.nature.com/articles/s41...

Not that long ago, in vivo mouse enhancer design was a dream. Today, it's a reality! Using transfer deep learning to design de novo synthetic embryonic enhancers active in the heart, limb, and CNS. Great collab with @alex-stark.bsky.social lab! @ucibiosci.bsky.social @impvienna.bsky.social

Our preprint "Predictive design of tissue-specific mammalian enhancers that function in vivo in the mouse embryo" is on bioRxiv: www.biorxiv.org/content/10.6... . Amazing collaboration by @shenzhichen1999.bsky.social, Vincent Loubiere (@impvienna.bsky.social,@viennabiocenter.bsky.social),... (1/2)

Very interesting pre-print from Chris Baker's lab at JAX on the mechanistic link between trans-acting genetic variants and heterochromatin formation in mice. #heterochromatin #epigenetics #variants www.biorxiv.org/content/10.6...

1/ 🎄 We got our Christmas present today: "Two distinct chromatin modules regulate proinflammatory gene expression" is now published @natcellbio.nature.com doi.org/10.1038/s415.... Our study introduces a scATAC-seq-based framework for genome-wide analysis of gene regulation features.

A human embryo implantation model from the @Rugg-Gunn Lab *key for understanding the early extraembryonic-maternal interactions Congrats to everyone involved! It’s been great to see this project develop. Huge credit to the @babrahaminst.bsky.social authors 🥂🍾 www.cell.com/cell/fulltex...

Our new preprint is out: www.biorxiv.org/content/10.6... We show that GRN benchmarks commonly used can overestimate performance due to negative-sampling choices, sometimes allowing simple degree-based baselines to rival more complex GNNs. A reminder of why bias-aware evaluation matters!

🚨Our work on the impact of DNA replication on 3D genome is out in Genome Biology: replication-dependent loop extrusion by sister-forks, wave of replication, no evidence for large-scale replication factory. Great collab with @aurelepiazza.bsky.social. More here: link.springer.com/article/10.1...

Be sure to also check out the great paper from @andersshansen.bsky.social and colleagues where they discover microcompartments on mitotic chromosomes using Region Capture Micro-C. Exciting times for those interested in chromosome conformation during cell division! www.nature.com/articles/s41...

Excited to share a News & Views highlighting a new, excellent paper from @jobdekker.bsky.social and @allanaschooley.bsky.social! www.nature.com/articles/s41...

Congrats to @allanaschooley.bsky.social et al. @jobdekker.bsky.social on this beautiful paper, using a very elegant experimental system, to discover a chromosome intrinsic 3D genome folding program and microcompartmentalization of CREs at mitotic exit:

🚨Our story is published! Same bones but + dissection of MERVL’s role integrating signals from #ZGA factors, & + about pathological DUX4 activation of NOXA #TEsky. Thanks to all revs for their helpful comments improving the ms. Even #rev3 - until they ghosted us 😜 www.science.org/doi/epdf/10....

Intrigued by a long-standing conundrum in small RNA biology—how nuclear Argonaute proteins silence transposons when they *need* target transcription for their own recruitment—we studied the piRNA pathway. And found a hidden RNA-decay axis from Piwi to the RNA exosome.

Exciting new paper out! @allanaschooley.bsky.social and Sergey Venev led this project that let to the discovery of two chromosome folding programs: one inherited via mitotic chromosomes and one mitotic inherited through the cytoplasm! www.nature.com/articles/s41...

it appears your manuscript "in preparation" was not published in 2025 after all, mr. bond

I have used LLMs this year to help me revise things I have written, and found it useful. I have given it a paragraph or an abstract I have been struggling with, asked for suggestions, and sometimes those suggestions, or some dialogue around them have helped me past the struggle.

Are you a bachelor or master student anywhere in the world, and would like to come to us to work full-time on a supervised research project? Applications for the 2026 MPIA Summer Internship are open now!

All right it’s time for the annual “please tell us about one (or a few if you are ambitious) paper from 2025 that really impressed you and why we should all read it“! Go! If you tell us how it changed your view of the world and what makes it so powerful and consequential It would be excellent.

"Range extender mediates long-distance enhancer activity" by @evgenykvon.bsky.social 's team, led by @gracebower.bsky.social is one of my papers of the year. Discovery of a new class of cis-regulatory elements that modulate the regulatory activity and reach of enhancers. doi.org/10.1038/s415...

Our Science paper is out! Huge congratulations to @huabin-zhou.bsky.social, Mike Rosen, and the brilliant @janhuemar.bsky.social @juliamaristany.bsky.social and @kieran-russell.bsky.social from our group News: bit.ly/4avnkAr and bit.ly/3XBGVHS Great perspective by @vram142.bsky.social +K Zhang

One of the best reviews I read this year...

#o2hGroup #JPMWeek2026 #JPM #RESIJPM #LifeSciences #Biotech #Techbio #Innovation #Collaboration

💡 New paper out in @natcellbio.nature.com 💥💥💥🚀🚀🚀 We uncover an unexpected role for endogenous Xist RNA in regulating X-linked genes that escape X-inactivation well beyond early development, in differentiated, non-dividing cells and in vivo post implantation embryos 👇👇👇👇

Do you want to play a key role in running a cutting-edge stem cell and embryology lab at reNEW @ucph.bsky.social ? We’re hiring a Lab Manager to support our team and help with stem cell and animal work. Apply before Feb. 1st : rb.gy/d5uf17

I'm guest-editing a collection on "Enhancer-promoter interactions" at Genome Biology. Please send us your exciting stories! link.springer.com/collections/...

Thrilled to share that my postdoc research is published today in @science.org! We found that DNA repair uses cohesin complexes to build new chromatin loops that guide the homology search and boost accurate repair! 1/n www.science.org/doi/10.1126/...

After a huge amount of work w/ @alex-stark.bsky.social's group, a new version of our Ledidi preprint is now out! In an era of AI-designed proteins, the next leap will be controlling when, where, and how much of these proteins are expressed in living cells. www.biorxiv.org/content/10.1...

Born #OnThisDay in 1922, Esther Lederberg was the first to isolate the lambda phage in 1951. She characterised the lysogenic phase, whereby the phage are able to integrate into the bacterial genome, staying dormant. This discovery made them a model tool of study, leading to many more breakthroughs.

My lab is hiring a postdoc (ERC funded)! If you're interested, get in touch!

I recommend any Developmental biologists planning to start the road to becoming a PI next year to apply! The help and guidance you will receive are valuable but being a part of a cohort of people living through the same experiences is worth its weight in Gold!

A major output of the 4D Nucleome project appeared today. This is the joint effort of many scientists working together and (publicly) sharing data and results for several years. We hope this is of interest to many genome biologists! www.nature.com/articles/s41...

ISSCR and STEMCELL Technologies (STEMCELL Technologies) have launched a free course, “Applying the ISSCR Standards for Research”. Deep dive into how to put the ISSCR Standards for Human Stem Cell use in Research into action to strengthen your research. 👉 https://bit.ly/43Slc1G

Lovely little pre-Christmas present to see this out @natcellbio.nature.com! Some 🔥 new results in here since the biorvix incl (1) a new RARE-GFP reporter ✳️🙌, (2) additional NMP quantification 🔢, (3) no neural tube patterning on RA inhibition 🙅 etc. Enjoy! 😍 www.nature.com/articles/s41...

✨Call open for a fully-funded PhD position✨ Looking for an enthusiastic student to join my upcoming Ambizione research group (🌱 Epigenome Diversity Lab 🌱, www.epidiversitylab.org) at ETH Zürich, starting August 2026! Apply here ↘️ jobs.ethz.ch/job/view/JOP... Application deadline: January 31st, 2026

This is Rose. She's paralyzed in both her back legs from being hit by a car as a stray. But when she sees her wheelchair harness come out, she knows it's time to walk and roll. 14/10 (IG: twopawrose)

How can plants maintain their genomic identity while also responding to the environment? @hajkdrost.bsky.social and I propose an "epigenetic toolkit" – a suite of epigenetic regulators that mediate the physiology-epigenome-genome crosstalk for adaptation. Read more here: www.cell.com/trends/plant...

@pravrutharaman.bsky.social got super intrigued about EZHIP/CATACOMB, previously identified as a histone H3K27M mimic of PRC2. You can read about her efforts here: www.biorxiv.org/content/10.6... We hope these analyses will help spur more analyses in this very cool gene! 1/

Why it's silenced to allow broad K27me3 patterns in naive ESCs is still a mystery to me, but it's clearly more important in the germline than in this context. Paper here if you're interested! (fig 2 and ext 4) (2/2) www.nature.com/articles/s41...

Our study with @stadtfeldlab.bsky.social on the dual mechanism by which EHMT2 is repressing totipotency-associated vs lineage-specific loci is now out @emboreports.org. See thread by @cmuyehara.bsky.social who led the study with K Chatterjee. Full article here link.springer.com/article/10.1...

Can one map the genome-wide binding (1) and its protein partners (2) simultaneously from the same sample? Yes, one can. with CUT&ID ✂️🪪 Spearheaded — singlehandedly — by @annanordin.bsky.social No need of transgenesis, cloning and overexpression. Check it out, it's fast and its works.

The devastation I feel about this attack on science in particular is hard to cope with. It’s like watching my dad die all over again. I would do anything to spare someone a death via pancreatic cancer.

Very excited to announce that our collaborative study with @efapostolou29.bsky.social on the transcriptional mechanisms distinguishing totipotent and pluripotent cells has been published (link.springer.com/article/10.1...). #totipotency #ZGA #stemcells #epigenetics #chromatin

🚨New paper out! In our @MolCellNews paper, we solve a piece of the puzzle of how our genome folds. We found the two specific molecular "brakes" in the CTCF protein that stop DNA loop extrusion. One of the final pieces of my PhD! tinyurl.com/29uuc5by

it's more of a comment than a ques

And this great Nature Plants News & Views by Pandesha and Slotkin covering this breakthrough discovery www.nature.com/articles/s41... @hadse.bsky.social @KeithSlotkin @natplants.nature.com 8/8