Recurrent evolution of small body size and loss of the sword ornament in Northern Swordtail fish
G. A. Preising, T. Gunn, J. J. Baczenas, A. Pollock, D. L. Powell, T. O. Dodge, J. A. Machin Kairuz, M. L. Savage, Y. Lu, M. Fitschen-Brown, M. Cummings, S. Thakur, M. Tobler, O. Rios-Cardenas, M. Morris, M. Schumer
The paper uses whole-genome sequencing to resolve phylogenetic relationships in Xiphophorus fish, revealing recurrent loss of sexually selected traits like body size and sword ornaments.
bioRxiv · Dec 24, 2022Evolutionary Biology