The neo-Ys are heavily rearranged and have unique gene losses. The neo-Xs are surprisingly colinear but are distinguished by Y-haplogroup specific inversions. The neo-Xs consist of an ancestral-X and three autosomal fusions.
Thomas et al. reveal that positively selected and differentially expressed hippocampal genes cluster near breakpoints in shrews, tying chromosomal rearrangements and accessible chromatin to adaptation and brain size plasticity.
🔗 doi.org/10.1093/molbev/msag006
📷 Christian Ziegler
#evobio #molbio
Our paper is out in @Science! The Atlantic silverside spans Earth's steepest latitudinal gradient in coastal sea-surface temperature. Despite high gene flow, populations show clinal genetic variation in multiple locally adapted traits. doi.org/10.1126/scie...
Job alert! Post-doc position available in the Tsutsui lab at UC Berkeley. I'm specifically looking for someone optimize and scale RNA interference for invasive ant control and eradication. Happy to take questions at [email protected]. Spread the word! aprecruit.berkeley.edu/JPF05325
Lethal epistasis maintains strong linkage disequilibrium between unlinked supergenes https://www.biorxiv.org/content/10.64898/2026.01.08.698410v1
New work from @miyapan.bsky.social and our team, bringing ant, bee, and wasp labs together. @chuanxinyu.bsky.social shows that the ANTSR locus we discovered in ants has determined sex for 150+ My across bees and stinging wasps 🐜🐝, despite virtually no sequence conservation 😮 doi.org/10.1073/pnas...
Check out our paper on the neo-sex chromosomes in mountain pine beetle! We assembled THREE neo-Ys that are quite distinct and their corresponding neo-Xs .
ANTSR seems to be the ancient master sex determining gene in Hymenoptera (as suggested by Pan et al. 2024)! So rad that a lncRNA is doing this!
www.biorxiv.org/content/10.6...