ArticleJournal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology2006
Seasonal cycle in vitamin A1/A2-based visual pigment composition during the life history of coho salmon (Oncorhynchus kisutch).
Article in Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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Who cites it
20 citing papers in PubMed.
- Seeing in the Deep: Evolution of the Opsin Gene Expression in Bermin Crater Lake Cichlids.Molecular biology and evolution · 2025Article
- Visual pigment chromophore usage in Nicaraguan Midas cichlids: phenotypic plasticity and genetic assimilation ofHydrobiologia · 2025Article
- Plasticity of cone photoreceptors in adult zebrafish revealed by thyroid hormone exposure.Scientific reports · 2023Article
- Contribution of opsins and chromophores to cone pigment variation across populations of Lake Victoria cichlids.Journal of fish biology · 2022Article
- An EvoDevo Study of Salmonid Visual Opsin Dynamics and Photopigment Spectral Sensitivity.Frontiers in neuroanatomy · 2022Article
- Behavioural red-light sensitivity in fish according to the optomotor response.Royal Society open science · 2021Article
- Vitamin ADevelopmental biology · 2021Review
- Seeing the rainbow: mechanisms underlying spectral sensitivity in teleost fishes.The Journal of experimental biology · 2020Review
- Diverse Cell Types, Circuits, and Mechanisms for Color Vision in the Vertebrate Retina.Physiological reviews · 2019Review
- Reviewing guppy color vision: integrating the molecular and physiological variation in visual tuning of a classic system for sensory drive.Current zoology · 2018Article
- Behavioural guidance of Chinook salmon smolts: the variable effects of LED spectral wavelength and strobing frequency.Conservation physiology · 2018Article
- Eye spectral sensitivity in fresh- and brackish-water populations of three glacial-relict Mysis species (Crustacea): physiology and genetics of differential tuning.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2016Article
- Coho Salmon (Oncorhynchus kisutch) Prefer and Are Less Aggressive in Darker Environments.PloS one · 2016Article
- Cyp27c1 Red-Shifts the Spectral Sensitivity of Photoreceptors by Converting Vitamin A1 into A2.Current biology : CB · 2015Article
- Androgens increase lws opsin expression and red sensitivity in male three-spined sticklebacks.PloS one · 2014Article
- Article
- Review
- A spitting image: specializations in archerfish eyes for vision at the interface between air and water.Proceedings. Biological sciences · 2010Article
- Article
- Chromophore switch from 11-cis-dehydroretinal (A2) to 11-cis-retinal (A1) decreases dark noise in salamander red rods.The Journal of physiology · 2007Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Microspectrophotometry of rod photoreceptors was used to follow variations in visual pigment vitamin A1/A2 ratio at various life history stages in coho salmon. Coho parr shifted their A1/A2 ratio seasonally with A2 increasing during winter and decreasing in summer. The cyclical pattern was statistically examined by a least-squares cosine model, fit to the 12-month data sets collected from different populations. A1/A2 ratio varied with temperature and day length. In 1+ (>12 month old) parr the A2 to A1 shift in spring coincided with smoltification, a metamorphic transition preceding seaward migration in salmonids. The coincidence of the shift from A2 to A1 with both the spring increase in temperature and day length, and with the timing of seaward migration presented a challenge for interpretation. Our data show a shift in A1/A2 ratio correlated with season, in both 0+ (<12 months old) coho parr that remained in fresh water for another year and in oceanic juvenile coho. These findings support the hypothesis that the A1/A2 pigment pair system in coho is an adaptation to seasonal variations in environmental variables rather than to a change associated with migration or metamorphosis.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.