The Visual Opsin Gene Repertoires of Teleost Fishes: Evolution, Ecology, and Function
Jazyk angličtina Země Spojené státy americké Médium print-electronic
Typ dokumentu časopisecké články, práce podpořená grantem, Research Support, U.S. Gov't, Non-P.H.S.
- Klíčová slova
- eye, fish vision, gene duplication, key spectral-tuning sites, photoreceptor cell, retina,
- MeSH
- fylogeneze MeSH
- obratlovci genetika MeSH
- opsiny * genetika MeSH
- retinální pigmenty genetika MeSH
- ryby genetika MeSH
- savci MeSH
- tyčinkové opsiny * genetika MeSH
- zvířata MeSH
- Check Tag
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Research Support, U.S. Gov't, Non-P.H.S. MeSH
- Názvy látek
- opsiny * MeSH
- retinální pigmenty MeSH
- tyčinkové opsiny * MeSH
Visual opsin genes expressed in the rod and cone photoreceptor cells of the retina are core components of the visual sensory system of vertebrates. Here, we provide an overview of the dynamic evolution of visual opsin genes in the most species-rich group of vertebrates, teleost fishes. The examination of the rich genomic resources now available for this group reveals that fish genomes contain more copies of visual opsin genes than are present in the genomes of amphibians, reptiles, birds, and mammals. The expansion of opsin genes in fishes is due primarily to a combination of ancestral and lineage-specific gene duplications. Following their duplication, the visual opsin genes of fishes repeatedly diversified at the same key spectral-tuning sites, generating arrays of visual pigments sensitive to the ultraviolet to red spectrum of light. Species-specific opsin gene repertoires correlate strongly with underwater light habitats, ecology, and color-based sexual selection.
Department of Zoology Charles University Prague 128 44 Czech Republic; email
Queensland Brain Institute The University of Queensland Brisbane 4072 Queensland Australia; email
Zoological Institute University of Basel Basel 4051 Switzerland; email
Citace poskytuje Crossref.org
Developmental changes of opsin gene expression in ray-finned fishes (Actinopterygii)
Visual Gene Expression Reveals a cone-to-rod Developmental Progression in Deep-Sea Fishes
