Positive and relaxed selective pressures have both strongly influenced the evolution of cryonotothenioid fishes during their radiation in the freezing Southern Ocean
K. Bilyk, X. Zhuang, C. Papetti
This study examines the genetic changes in cryonotothenioid fishes under cold and hemoglobin loss, finding positive and relaxed selection shaped their evolution.
bioRxiv · Feb 1, 2022Evolutionary Biology