Loricarioid catfish evolved skin denticles that recapitulate teeth at the structural, developmental, and genetic levels
C. J. Rivera-Rivera, N. I. Guevara-Delgadillo, I. A. Bahechar, C. A. Shea, J. I. Montoya-Burgos
This study shows loricarioid catfish skin denticles share developmental and genetic features with teeth, indicating their re-emergence through gene regulatory network co-option rather than ancestral pathway resurrection.
bioRxiv · May 17, 2021 · PreprintEvolutionary Biology