ArticleHeredity2014
Divergent selection for opsin gene variation in guppy (Poecilia reticulata) populations of Trinidad and Tobago.
Article in Heredity, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 18 citations in OpenAlex.
- Article
- Molecular advances to study the function, evolution and spectral tuning of arthropod visual opsins.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022Review
- Plasticity of opsin gene expression in the adult red shiner (Cyprinella lutrensis) in response to turbid habitats.PloS one · 2019Article
- Genetic and plastic variation in opsin gene expression, light sensitivity, and female response to visual signals in the guppy.Proceedings of the National Academy of Sciences of the United States of America · 2018Article
- Reviewing guppy color vision: integrating the molecular and physiological variation in visual tuning of a classic system for sensory drive.Current zoology · 2018Article
- Genomic Environment Impacts Color Vision Evolution in a Family with Visually Based Sexual Selection.Genome biology and evolution · 2017Article
- Identifying molecular signatures of hypoxia adaptation from sex chromosomes: A case for Tibetan Mastiff based on analyses of X chromosome.Scientific reports · 2016Article
- Exploring visual plasticity: dietary carotenoids can change color vision in guppies (Poecilia reticulata).Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2016Article
- Effects of light environment during growth on the expression of cone opsin genes and behavioral spectral sensitivities in guppies (Poecilia reticulata).BMC evolutionary biology · 2016Article
- Color vision varies more among populations than among species of live-bearing fish from South America.BMC evolutionary biology · 2015Article
- Differentiation of visual spectra and nuptial colorations of twoZoological studies · 2015Article
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Authors and funding
10 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The guppy is known to exhibit remarkable interindividual variations in spectral sensitivity of middle to long wavelength-sensitive (M/LWS) cone photoreceptor cells. The guppy has four M/LWS-type opsin genes (LWS-1, LWS-2, LWS-3 and LWS-4) that are considered to be responsible for this sensory variation. However, the allelic variation of the opsin genes, particularly in terms of their absorption spectrum, has not been explored in wild populations. Thus, we examined nucleotide variations in the four M/LWS opsin genes as well as blue-sensitive SWS2-B and ultraviolet-sensitive SWS1 opsin genes for comparison and seven non-opsin nuclear loci as reference genes in 10 guppy populations from various light environments in Trinidad and Tobago. For the first time, we discovered a potential spectral variation (180 Ser/Ala) in LWS-1 that differed at an amino acid site known to affect the absorption spectra of opsins. Based on a coalescent simulation of the nucleotide variation of the reference genes, we showed that the interpopulation genetic differentiation of two opsin genes was significantly larger than the neutral expectation. Furthermore, this genetic differentiation was significantly related to differences in dissolved oxygen (DO) level, and it was not explained by the spatial distance between populations. The DO levels are correlated with eutrophication that possibly affects the color of aquatic environments. These results suggest that the population diversity of opsin genes is significantly driven by natural selection and that the guppy could adapt to various light environments through color vision changes.
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