Ronan

@omalley-regulome.bsky.social

Plants, genomic, other stuff

This is a very special paper for me. I had the idea of combining transcription factor binding with chromatin in 2016/8. It took some time, but thanks to Fred and Vikas, we can finally share the story in @plos.org Genetics looking at chromatin states in Arabidopsis and Marchantia. #PlantScience

Chromatin state architecture governs transcription factor accessibility across plant genomes

Author summary In eukaryotes, DNA is tightly associated with histone proteins. Histone covalent modifications and histones isoforms, also called histone variants provide most of the complexity of chro...

journals.plos.org

Our paper is out in MBE! doi.org/10.1093/molb... We tracked TF binding site evolution across 589 grass species, and found that while binding preferences are pretty stable over 80 million years of evolution, individual binding sites have turned over a lot. Thread here: bsky.app/profile/char...

Grasses share a conserved set of cis-regulatory motifs, but individual motif instances have turned over repeatedly across 80 million years of evolution.
Charlie Hale@charleshale.bsky.social · last yr.

New preprint from my PhD! How cis-regulatory evolution shaped grass diversification worldwide www.biorxiv.org/content/10.1... We looked across 589 (!) grass species to ask: — What regulatory changes enabled grasses to adapt? — How can this inform crop breeding for resilience? Here’s what we found:

delighted to share work from my postdoc @cshlnews.bsky.social - here, we use TurboID in maize meristems to be able to resolve CLV receptor interactions, unlocking its potential to resolve in vivo receptor interactions important for meristem signaling.

bioRxiv Plant Bio@biorxiv-plants.bsky.social · last yr.

Antagonistic interactions between CLAVATA receptors shape maize ear development https://www.biorxiv.org/content/10.1101/2025.08.04.667500v1

Our new Nature Plants paper is out (and we’re on the cover 😁)!👉 bit.ly/4lS8sOB By combining scRNA-seq with conserved TF binding (multiDAP) we define gene regulatory networks for 65 cell types across 4 tissues in a wide range of flowering plants!

Bild