Evolution of rhodopsin in flatfishes (Pleuronectiformes) is associated with depth and migratory behavior
Abstract Visual signals are involved in many fitness‐related tasks and are therefore essential for survival in many species. Aquatic organisms are ideal systems to study visual evolution, as the high diversity of spectral properties in aquatic environments generates great potential for adaptation to...
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Online Access: | http://dx.doi.org/10.1111/jfb.15828 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfb.15828 |
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crwiley:10.1111/jfb.15828 2024-06-23T07:57:20+00:00 Evolution of rhodopsin in flatfishes (Pleuronectiformes) is associated with depth and migratory behavior Macpherson, Esme S. B. Hauser, Frances E. Van Nynatten, Alexander Chang, Belinda S. W. Lovejoy, Nathan R. Classical Association 2024 http://dx.doi.org/10.1111/jfb.15828 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfb.15828 en eng Wiley http://creativecommons.org/licenses/by-nc-nd/4.0/ Journal of Fish Biology ISSN 0022-1112 1095-8649 journal-article 2024 crwiley https://doi.org/10.1111/jfb.15828 2024-06-13T04:22:52Z Abstract Visual signals are involved in many fitness‐related tasks and are therefore essential for survival in many species. Aquatic organisms are ideal systems to study visual evolution, as the high diversity of spectral properties in aquatic environments generates great potential for adaptation to different light conditions. Flatfishes are an economically important group, with over 800 described species distributed globally, including halibut, flounder, sole, and turbot. The diversity of flatfish species and wide array of environments they occupy provides an excellent opportunity to understand how this variation translates to molecular adaptation of vision genes. Using models of molecular evolution, we investigated how the light environments inhabited by different flatfish lineages have shaped evolution in the rhodopsin gene, which is responsible for mediating dim‐light visual transduction. We found strong evidence for positive selection in rhodopsin, and this was correlated with both migratory behavior and several fundamental aspects of habitat, including depth and freshwater/marine evolutionary transitions. We also identified several mutations that likely affect the wavelength of peak absorbance of rhodopsin, and outline how these shifts in absorbance correlate with the response to the light spectrum present in different habitats. This is the first study of rhodopsin evolution in flatfishes that considers their extensive diversity, and our results highlight how ecologically‐driven molecular adaptation has occurred across this group in response to transitions to novel light environments. Article in Journal/Newspaper Turbot Wiley Online Library Journal of Fish Biology |
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Wiley Online Library |
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Abstract Visual signals are involved in many fitness‐related tasks and are therefore essential for survival in many species. Aquatic organisms are ideal systems to study visual evolution, as the high diversity of spectral properties in aquatic environments generates great potential for adaptation to different light conditions. Flatfishes are an economically important group, with over 800 described species distributed globally, including halibut, flounder, sole, and turbot. The diversity of flatfish species and wide array of environments they occupy provides an excellent opportunity to understand how this variation translates to molecular adaptation of vision genes. Using models of molecular evolution, we investigated how the light environments inhabited by different flatfish lineages have shaped evolution in the rhodopsin gene, which is responsible for mediating dim‐light visual transduction. We found strong evidence for positive selection in rhodopsin, and this was correlated with both migratory behavior and several fundamental aspects of habitat, including depth and freshwater/marine evolutionary transitions. We also identified several mutations that likely affect the wavelength of peak absorbance of rhodopsin, and outline how these shifts in absorbance correlate with the response to the light spectrum present in different habitats. This is the first study of rhodopsin evolution in flatfishes that considers their extensive diversity, and our results highlight how ecologically‐driven molecular adaptation has occurred across this group in response to transitions to novel light environments. |
author2 |
Classical Association |
format |
Article in Journal/Newspaper |
author |
Macpherson, Esme S. B. Hauser, Frances E. Van Nynatten, Alexander Chang, Belinda S. W. Lovejoy, Nathan R. |
spellingShingle |
Macpherson, Esme S. B. Hauser, Frances E. Van Nynatten, Alexander Chang, Belinda S. W. Lovejoy, Nathan R. Evolution of rhodopsin in flatfishes (Pleuronectiformes) is associated with depth and migratory behavior |
author_facet |
Macpherson, Esme S. B. Hauser, Frances E. Van Nynatten, Alexander Chang, Belinda S. W. Lovejoy, Nathan R. |
author_sort |
Macpherson, Esme S. B. |
title |
Evolution of rhodopsin in flatfishes (Pleuronectiformes) is associated with depth and migratory behavior |
title_short |
Evolution of rhodopsin in flatfishes (Pleuronectiformes) is associated with depth and migratory behavior |
title_full |
Evolution of rhodopsin in flatfishes (Pleuronectiformes) is associated with depth and migratory behavior |
title_fullStr |
Evolution of rhodopsin in flatfishes (Pleuronectiformes) is associated with depth and migratory behavior |
title_full_unstemmed |
Evolution of rhodopsin in flatfishes (Pleuronectiformes) is associated with depth and migratory behavior |
title_sort |
evolution of rhodopsin in flatfishes (pleuronectiformes) is associated with depth and migratory behavior |
publisher |
Wiley |
publishDate |
2024 |
url |
http://dx.doi.org/10.1111/jfb.15828 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfb.15828 |
genre |
Turbot |
genre_facet |
Turbot |
op_source |
Journal of Fish Biology ISSN 0022-1112 1095-8649 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/10.1111/jfb.15828 |
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Journal of Fish Biology |
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1802650924024332288 |