Ontogeny of melanophore photosensitivity in rainbow trout (Oncorhynchus mykiss).

ABSTRACT: Migratory species experience morphological and physiological changes during transitions between different life stages. In particular, modification of sensory systems is critical for animals to adapt to new environments. For example, to prepare for entry into seawater, salmonids undergo smoltification with dramatic changes in ultraviolet photoreceptors and polarized vision, which are important for orientation and foraging behaviours. Extraretinal organs are also involved in photoreception; however, the ontogenetic development of extraretinal photoreceptors is not well known, especially in migratory species. Here, we investigated whether rainbow trout dermal photoreceptors, melanophores, undergo change in spectral sensitivity during smoltification and which candidate molecules may account fo

SUBMITTER: Chen SC 

PROVIDER: S-EPMC4232760 | biostudies-literature | 2014 Oct

REPOSITORIES: biostudies-literature