ArticleScientific reports2019
Evolutionary history of teleost intron-containing and intron-less rhodopsin genes.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed, 13 citations in OpenAlex.
- Genomic and regulatory basis of visual opsin genes in the cleaner wrasse behavior: features, expression, and enhancer mechanisms.Molecular biology reports · 2026Article
- From pineal photoreception to optogenetics: functional colour opponency based on a pineal bistable opsin.Eye and vision (London, England) · 2026Review
- Visual pigments of basal lineages of bony fishes support independent ecological shifts from a shallow marine to a freshwater niche.Evolution letters · 2026Article
- Evolution of the Nonvisual and Visual Opsin Gene Repertoire in Ray-Finned Fishes.Genome biology and evolution · 2025Article
- Multiple Pathways of Visual Adaptations for Water Column Usage in an Antarctic Adaptive Radiation.Ecology and evolution · 2025Article
- Functional diversification process of opsin genes for teleost visual and pineal photoreceptions.Cellular and molecular life sciences : CMLS · 2024Article
- Dynamic Expansions and Retinal Expression of Spectrally Distinct Short-Wavelength Opsin Genes in Sea Snakes.Genome biology and evolution · 2024Article
- The evolutionary history and spectral tuning of vertebrate visual opsins.Developmental biology · 2023Review
- Correlated Expression of the Opsin Retrogene LWS-R and its Host Gene in Two Poeciliid Fishes.Zoological studies · 2022Article
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Authors and funding
6 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Recent progress in whole genome sequencing has revealed that animals have various kinds of opsin genes for photoreception. Among them, most opsin genes have introns in their coding regions. However, it has been known for a long time that teleost retinas express intron-less rhodopsin genes, which are presumed to have been formed by retroduplication from an ancestral intron-containing rhodopsin gene. In addition, teleosts have an intron-containing rhodopsin gene (exo-rhodopsin) exclusively for pineal photoreception. In this study, to unravel the evolutionary origin of the two teleost rhodopsin genes, we analyzed the rhodopsin genes of non-teleost fishes in the Actinopterygii. The phylogenetic analysis of full-length sequences of bichir, sturgeon and gar rhodopsins revealed that retroduplication of the rhodopsin gene occurred after branching of the bichir lineage. In addition, analysis of the tissue distribution and the molecular properties of bichir, sturgeon and gar rhodopsins showed that the abundant and exclusive expression of intron-containing rhodopsin in the pineal gland and the short lifetime of its meta II intermediate, which leads to optimization for pineal photoreception, were achieved after branching of the gar lineage. Based on these results, we propose a stepwise evolutionary model of teleost intron-containing and intron-less rhodopsin genes.
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