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Group benefit associated with polymorphic trichromacy in a Malagasy primate (Propithecus verreauxi)
In some primate lineages, polymorphisms in the X-linked M/LWS opsin gene have produced intraspecific variation in color vision. In these species, heterozygous females exhibit trichromacy, while males and homozygous females exhibit dichromacy. The evolutionary persistence of these polymorphisms sugge...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5133583/ https://www.ncbi.nlm.nih.gov/pubmed/27910919 http://dx.doi.org/10.1038/srep38418 |
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author | Veilleux, Carrie C. Scarry, Clara J. Di Fiore, Anthony Kirk, E. Christopher Bolnick, Deborah A. Lewis, Rebecca J. |
author_facet | Veilleux, Carrie C. Scarry, Clara J. Di Fiore, Anthony Kirk, E. Christopher Bolnick, Deborah A. Lewis, Rebecca J. |
author_sort | Veilleux, Carrie C. |
collection | PubMed |
description | In some primate lineages, polymorphisms in the X-linked M/LWS opsin gene have produced intraspecific variation in color vision. In these species, heterozygous females exhibit trichromacy, while males and homozygous females exhibit dichromacy. The evolutionary persistence of these polymorphisms suggests that balancing selection maintains color vision variation, possibly through a ‘trichromat advantage’ in detecting yellow/orange/red foods against foliage. We identified genetic evidence of polymorphic trichromacy in a population of Verreaux’s sifaka (Propithecus verreauxi) at Kirindy Mitea National Park in Madagascar, and explored effects of color vision on reproductive success and feeding behavior using nine years of morphological, demographic, and feeding data. We found that trichromats and dichromats residing in social groups with trichromats exhibit higher body mass indices than individuals in dichromat-only groups. Additionally, individuals in a trichromat social group devoted significantly more time to fruit feeding and had longer fruit feeding bouts than individuals in dichromat-only groups. We hypothesize that, due to small, cohesive sifaka social groups, a trichromat advantage in detecting productive fruit patches during the energetically stressful dry season also benefits dichromats in a trichromat’s group. Our results offer the first support for the ‘mutual benefit of association’ hypothesis regarding the maintenance of polymorphic trichromacy in primates. |
format | Online Article Text |
id | pubmed-5133583 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-51335832017-01-27 Group benefit associated with polymorphic trichromacy in a Malagasy primate (Propithecus verreauxi) Veilleux, Carrie C. Scarry, Clara J. Di Fiore, Anthony Kirk, E. Christopher Bolnick, Deborah A. Lewis, Rebecca J. Sci Rep Article In some primate lineages, polymorphisms in the X-linked M/LWS opsin gene have produced intraspecific variation in color vision. In these species, heterozygous females exhibit trichromacy, while males and homozygous females exhibit dichromacy. The evolutionary persistence of these polymorphisms suggests that balancing selection maintains color vision variation, possibly through a ‘trichromat advantage’ in detecting yellow/orange/red foods against foliage. We identified genetic evidence of polymorphic trichromacy in a population of Verreaux’s sifaka (Propithecus verreauxi) at Kirindy Mitea National Park in Madagascar, and explored effects of color vision on reproductive success and feeding behavior using nine years of morphological, demographic, and feeding data. We found that trichromats and dichromats residing in social groups with trichromats exhibit higher body mass indices than individuals in dichromat-only groups. Additionally, individuals in a trichromat social group devoted significantly more time to fruit feeding and had longer fruit feeding bouts than individuals in dichromat-only groups. We hypothesize that, due to small, cohesive sifaka social groups, a trichromat advantage in detecting productive fruit patches during the energetically stressful dry season also benefits dichromats in a trichromat’s group. Our results offer the first support for the ‘mutual benefit of association’ hypothesis regarding the maintenance of polymorphic trichromacy in primates. Nature Publishing Group 2016-12-02 /pmc/articles/PMC5133583/ /pubmed/27910919 http://dx.doi.org/10.1038/srep38418 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Veilleux, Carrie C. Scarry, Clara J. Di Fiore, Anthony Kirk, E. Christopher Bolnick, Deborah A. Lewis, Rebecca J. Group benefit associated with polymorphic trichromacy in a Malagasy primate (Propithecus verreauxi) |
title | Group benefit associated with polymorphic trichromacy in a Malagasy primate (Propithecus verreauxi) |
title_full | Group benefit associated with polymorphic trichromacy in a Malagasy primate (Propithecus verreauxi) |
title_fullStr | Group benefit associated with polymorphic trichromacy in a Malagasy primate (Propithecus verreauxi) |
title_full_unstemmed | Group benefit associated with polymorphic trichromacy in a Malagasy primate (Propithecus verreauxi) |
title_short | Group benefit associated with polymorphic trichromacy in a Malagasy primate (Propithecus verreauxi) |
title_sort | group benefit associated with polymorphic trichromacy in a malagasy primate (propithecus verreauxi) |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5133583/ https://www.ncbi.nlm.nih.gov/pubmed/27910919 http://dx.doi.org/10.1038/srep38418 |
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