A Deep Phylogenetic Split Between Short- and Long-Wavelength-Tuned Visual Systems in Surgeonfishes (Acanthuridae)
Abigail Shaughnessy, Valerio Tettamanti, Martin Luehrmann, Justin Marshall, Fabio Cortesi
This study investigates visual plasticity in surgeonfishes by analyzing opsin gene expression across 22 species, revealing a deep phylogenetic split in visual systems that predates ecological diversification.
bioRxiv · Nov 3, 2026 · PreprintEvolutionary Biology