Cave evolution on repeat: reuse of the same genomic regions across lineages but not across traits in Astyanax mexicanus
Emilie J. Richards, Rachel L. Moran, Jonathan Wiese, Morgan O’Gorman, Pierce Hutton, Aakriti Rastogi, Owen W. North, Aubrey E. Manning, Emma Y. Roback, Johanna E. Kowalko, Nicolas Rohner, Alex C. Keene, Suzanne E. McGaugh
The paper investigates genetic repeatability in cavefish traits using QTL mapping, finding shared genomic regions for eye loss but less repeatability for sleep and metabolic traits.
bioRxiv · Feb 3, 2026 · PreprintEvolutionary Biology