Developmental changes of opsin gene expression in ray-finned fishes (Actinopterygii).

ABSTRACT: Fish often change their habitat and trophic preferences during development. Dramatic functional differences between embryos, larvae, juveniles and adults also concern sensory systems, including vision. Here, we focus on the photoreceptors (rod and cone cells) in the retina and their gene expression profiles during development. Using comparative transcriptomics on 63 species, belonging to 23 actinopterygian orders, we report general developmental patterns of opsin expression, mostly suggesting an increased importance of the rod opsin (RH1) gene and the long-wavelength-sensitive cone opsin, and a decreasing importance of the shorter wavelength-sensitive cone opsin throughout development. Furthermore, we investigate in detail ontogenetic changes in 14 selected species (from Polypterifo

SUBMITTER: Lupse N 

PROVIDER: S-EPMC9627706 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature