Adaptive Disruption of Carotenoid Metabolism in Cavefish via Loss of Beta-carotene oxygenase 2a (Bco2a)
David Peréz Guerra, Sepalika Bandara, Francisca Leal, Johannes v. Lintig, Misty R. Riddle
This study shows that loss-of-function mutations in Bco2a in cavefish lead to increased carotenoid and vitamin A accumulation, providing a physiological advantage in low-oxygen environments.
bioRxiv · Oct 6, 2025 · PreprintEvolutionary Biology