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Macroevolutionary diversification of glands for chemical communication in squamate reptiles

Chemical communication plays a central role in social, sexual and ecological interactions among animals. However, the macroevolutionary diversification of traits responsible for chemical signaling remains fundamentally unknown. Most research investigating evolutionary diversification of glands respo...

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Autores principales: García-Roa, Roberto, Jara, Manuel, Baeckens, Simon, López, Pilar, Van Damme, Raoul, Martín, José, Pincheira-Donoso, Daniel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5570929/
https://www.ncbi.nlm.nih.gov/pubmed/28839252
http://dx.doi.org/10.1038/s41598-017-09083-7
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author García-Roa, Roberto
Jara, Manuel
Baeckens, Simon
López, Pilar
Van Damme, Raoul
Martín, José
Pincheira-Donoso, Daniel
author_facet García-Roa, Roberto
Jara, Manuel
Baeckens, Simon
López, Pilar
Van Damme, Raoul
Martín, José
Pincheira-Donoso, Daniel
author_sort García-Roa, Roberto
collection PubMed
description Chemical communication plays a central role in social, sexual and ecological interactions among animals. However, the macroevolutionary diversification of traits responsible for chemical signaling remains fundamentally unknown. Most research investigating evolutionary diversification of glands responsible for the production of chemical signals has focused on arthropods, while its study among vertebrates remains neglected. Using a global-scale dataset covering > 80% (7,904 species) of the living diversity of lizards and snakes (squamates), we investigate rates, trajectories and phylogenetic patterns of diversification of their follicular glands for chemical communication. We observed these glands in 13.66% of species, that their expression has varying phylogenetic signal among lineages, and that the crown squamate ancestor lacked follicular glands, which therefore originated and diversified subsequently during their evolutionary history. Additionally, our findings challenge the longstanding view that within squamates the Iguania are visually oriented while Scleroglossa are chemically-oriented, given that Iguania doubles Scleroglossa in the frequency of glands. Our phylogenetic analyses identified stabilizing selection as the best model describing follicular gland diversification, and revealed high rates of disparity. We provide the first global-scale analysis investigating the diversification of one of the main forms of communication among reptiles, presenting a macroevolutionary angle to questions traditionally explored at microevolutionary scale.
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spelling pubmed-55709292017-09-01 Macroevolutionary diversification of glands for chemical communication in squamate reptiles García-Roa, Roberto Jara, Manuel Baeckens, Simon López, Pilar Van Damme, Raoul Martín, José Pincheira-Donoso, Daniel Sci Rep Article Chemical communication plays a central role in social, sexual and ecological interactions among animals. However, the macroevolutionary diversification of traits responsible for chemical signaling remains fundamentally unknown. Most research investigating evolutionary diversification of glands responsible for the production of chemical signals has focused on arthropods, while its study among vertebrates remains neglected. Using a global-scale dataset covering > 80% (7,904 species) of the living diversity of lizards and snakes (squamates), we investigate rates, trajectories and phylogenetic patterns of diversification of their follicular glands for chemical communication. We observed these glands in 13.66% of species, that their expression has varying phylogenetic signal among lineages, and that the crown squamate ancestor lacked follicular glands, which therefore originated and diversified subsequently during their evolutionary history. Additionally, our findings challenge the longstanding view that within squamates the Iguania are visually oriented while Scleroglossa are chemically-oriented, given that Iguania doubles Scleroglossa in the frequency of glands. Our phylogenetic analyses identified stabilizing selection as the best model describing follicular gland diversification, and revealed high rates of disparity. We provide the first global-scale analysis investigating the diversification of one of the main forms of communication among reptiles, presenting a macroevolutionary angle to questions traditionally explored at microevolutionary scale. Nature Publishing Group UK 2017-08-24 /pmc/articles/PMC5570929/ /pubmed/28839252 http://dx.doi.org/10.1038/s41598-017-09083-7 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
García-Roa, Roberto
Jara, Manuel
Baeckens, Simon
López, Pilar
Van Damme, Raoul
Martín, José
Pincheira-Donoso, Daniel
Macroevolutionary diversification of glands for chemical communication in squamate reptiles
title Macroevolutionary diversification of glands for chemical communication in squamate reptiles
title_full Macroevolutionary diversification of glands for chemical communication in squamate reptiles
title_fullStr Macroevolutionary diversification of glands for chemical communication in squamate reptiles
title_full_unstemmed Macroevolutionary diversification of glands for chemical communication in squamate reptiles
title_short Macroevolutionary diversification of glands for chemical communication in squamate reptiles
title_sort macroevolutionary diversification of glands for chemical communication in squamate reptiles
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5570929/
https://www.ncbi.nlm.nih.gov/pubmed/28839252
http://dx.doi.org/10.1038/s41598-017-09083-7
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