Long-wavelength sensitive opsin (LWS) gene variability in Neotropical cichlids (Teleostei: Cichlidae)
ABSTRACT Cichlid fishes are an important group in evolutionary biology due to their fast speciation. This group depends widely of vision for feeding and reproduction. During the evolutionary process it plays a significant role in interspecific and intraspecific recognition and in its ecology. The mo...
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Academia Brasileira de Ciências
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| Series: | Anais da Academia Brasileira de Ciências |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000100213&lng=en&tlng=en |
| _version_ | 1819195429639684096 |
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| author | THOMAZ M.C. FABRIN SONIA MARIA A.P. PRIOLI ALBERTO JOSÉ PRIOLI |
| author_facet | THOMAZ M.C. FABRIN SONIA MARIA A.P. PRIOLI ALBERTO JOSÉ PRIOLI |
| author_sort | THOMAZ M.C. FABRIN |
| collection | DOAJ |
| description | ABSTRACT Cichlid fishes are an important group in evolutionary biology due to their fast speciation. This group depends widely of vision for feeding and reproduction. During the evolutionary process it plays a significant role in interspecific and intraspecific recognition and in its ecology. The molecular basis of vision is formed by the interaction of the protein opsin and retinal chromophore. Long-wavelength sensitive opsin (LWS) gene is the most variable among the opsin genes and it has an ecological significance. Current assay identifies interspecific variation of Neotropical cichlids that would modify the spectral properties of the LWS opsin protein and codons selected. Neotropical species present more variable sites for LWS gene than those of the African lakes species. The LWS opsin gene in Crenicichla britskii has a higher amino acid similarity when compared to that in the African species, but the variable regions do not overlap. Neotropical cichlids accumulate larger amounts of variable sites for LWS opsin gene, probably because they are spread over a wider area and submitted to a wider range of selective pressures by inhabiting mainly lotic environments. Furthermore, the codons under selection are different when compared to those of the African cichlids. |
| first_indexed | 2024-12-23T02:12:37Z |
| format | Article |
| id | doaj.art-9608bfad44b347e99f22e8f34d74a764 |
| institution | Directory Open Access Journal |
| issn | 1678-2690 |
| language | English |
| last_indexed | 2024-12-23T02:12:37Z |
| publisher | Academia Brasileira de Ciências |
| record_format | Article |
| series | Anais da Academia Brasileira de Ciências |
| spelling | doaj.art-9608bfad44b347e99f22e8f34d74a7642022-12-21T18:03:45ZengAcademia Brasileira de CiênciasAnais da Academia Brasileira de Ciências1678-269089121322210.1590/0001-3765201720150692S0001-37652017000100213Long-wavelength sensitive opsin (LWS) gene variability in Neotropical cichlids (Teleostei: Cichlidae)THOMAZ M.C. FABRINSONIA MARIA A.P. PRIOLIALBERTO JOSÉ PRIOLIABSTRACT Cichlid fishes are an important group in evolutionary biology due to their fast speciation. This group depends widely of vision for feeding and reproduction. During the evolutionary process it plays a significant role in interspecific and intraspecific recognition and in its ecology. The molecular basis of vision is formed by the interaction of the protein opsin and retinal chromophore. Long-wavelength sensitive opsin (LWS) gene is the most variable among the opsin genes and it has an ecological significance. Current assay identifies interspecific variation of Neotropical cichlids that would modify the spectral properties of the LWS opsin protein and codons selected. Neotropical species present more variable sites for LWS gene than those of the African lakes species. The LWS opsin gene in Crenicichla britskii has a higher amino acid similarity when compared to that in the African species, but the variable regions do not overlap. Neotropical cichlids accumulate larger amounts of variable sites for LWS opsin gene, probably because they are spread over a wider area and submitted to a wider range of selective pressures by inhabiting mainly lotic environments. Furthermore, the codons under selection are different when compared to those of the African cichlids.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000100213&lng=en&tlng=enconvergenceecologyevolutionvisual system. |
| spellingShingle | THOMAZ M.C. FABRIN SONIA MARIA A.P. PRIOLI ALBERTO JOSÉ PRIOLI Long-wavelength sensitive opsin (LWS) gene variability in Neotropical cichlids (Teleostei: Cichlidae) Anais da Academia Brasileira de Ciências convergence ecology evolution visual system. |
| title | Long-wavelength sensitive opsin (LWS) gene variability in Neotropical cichlids (Teleostei: Cichlidae) |
| title_full | Long-wavelength sensitive opsin (LWS) gene variability in Neotropical cichlids (Teleostei: Cichlidae) |
| title_fullStr | Long-wavelength sensitive opsin (LWS) gene variability in Neotropical cichlids (Teleostei: Cichlidae) |
| title_full_unstemmed | Long-wavelength sensitive opsin (LWS) gene variability in Neotropical cichlids (Teleostei: Cichlidae) |
| title_short | Long-wavelength sensitive opsin (LWS) gene variability in Neotropical cichlids (Teleostei: Cichlidae) |
| title_sort | long wavelength sensitive opsin lws gene variability in neotropical cichlids teleostei cichlidae |
| topic | convergence ecology evolution visual system. |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000100213&lng=en&tlng=en |
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