Hidden diversity within a polytypic species: The enigmatic Sceloporus torquatus Wiegmann, 1828 (Reptilia, Squamata, Phrynosomatidae

The spiny lizard genus Sceloporus was described by Wiegmann in 1828, with S. torquatus posteriorly designated as the type species. The taxonomic history of S. torquatus is complicated, as it has been confused with other taxa by numerous authors. Many modern systematics works have been published on S...

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Autores principales:	Gustavo Campillo-García, Oscar Flores-Villela, Brett Oliver Butler, Julián Andrés Velasco Vinasco, Fabiola Ramírez Corona
Formato:	article
Lenguaje:	EN
Publicado:	Pensoft 2021
Materias:	Zoology QL1-991
Acceso en línea:	https://doaj.org/article/0022c60544ec41ec85c0a491a570b2af
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spelling	oai:doaj.org-article:0022c60544ec41ec85c0a491a570b2af2021-12-05T04:30:48ZHidden diversity within a polytypic species: The enigmatic Sceloporus torquatus Wiegmann, 1828 (Reptilia, Squamata, Phrynosomatidae10.3897/vz.71.e719952625-8498https://doaj.org/article/0022c60544ec41ec85c0a491a570b2af2021-12-01T00:00:00Zhttps://vertebrate-zoology.arphahub.com/article/71995/download/pdf/https://vertebrate-zoology.arphahub.com/article/71995/download/xml/https://vertebrate-zoology.arphahub.com/article/71995/https://doaj.org/toc/2625-8498The spiny lizard genus Sceloporus was described by Wiegmann in 1828, with S. torquatus posteriorly designated as the type species. The taxonomic history of S. torquatus is complicated, as it has been confused with other taxa by numerous authors. Many modern systematics works have been published on Sceloporus, but none have included all five recognized S. torquatus subspecies: S. t. torquatus, S. t. melanogaster, S. t. binocularis, S. t. mikeprestoni, and S. t. madrensis. Additionally, there is previous evidence for at least one unnamed taxon. The present study is the first taxonomic revision of the enigmatic S. torquatus based on molecular phylogenies using combined molecular data from 12S, ND4 and RAG1 genes, and Maximum Likelihood and Bayesian inference phylogenetic methods. This work includes the most extensive sampling across the entire distribution, as well as divergence time estimates and environmental niche modelling, which combined offer a spatio-temporal framework for understanding the evolution of the species. Additionally, a series of morphological characters are analyzed to identify significant differences between lineages consistently recovered in the molecular phylogenies. Using this integrative approach, evidence is presented for eight lineages within the S. torquatus complex, five of which correspond to previously recognized subspecies and three represent unnamed taxa masked by morphological conservatism. Finally, to maintain taxonomic stability a lectotype and paralectoype are designated for S. torquatus, and certain taxonomic changes are suggested in order to reflect the phylogenetic relationships within the S. torquatus complex.Gustavo Campillo-GarcíaOscar Flores-VillelaBrett Oliver ButlerJulián Andrés Velasco VinascoFabiola Ramírez CoronaPensoftarticleZoologyQL1-991ENVertebrate Zoology, Vol 71, Iss , Pp 781-798 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Zoology QL1-991
spellingShingle	Zoology QL1-991 Gustavo Campillo-García Oscar Flores-Villela Brett Oliver Butler Julián Andrés Velasco Vinasco Fabiola Ramírez Corona Hidden diversity within a polytypic species: The enigmatic Sceloporus torquatus Wiegmann, 1828 (Reptilia, Squamata, Phrynosomatidae
description	The spiny lizard genus Sceloporus was described by Wiegmann in 1828, with S. torquatus posteriorly designated as the type species. The taxonomic history of S. torquatus is complicated, as it has been confused with other taxa by numerous authors. Many modern systematics works have been published on Sceloporus, but none have included all five recognized S. torquatus subspecies: S. t. torquatus, S. t. melanogaster, S. t. binocularis, S. t. mikeprestoni, and S. t. madrensis. Additionally, there is previous evidence for at least one unnamed taxon. The present study is the first taxonomic revision of the enigmatic S. torquatus based on molecular phylogenies using combined molecular data from 12S, ND4 and RAG1 genes, and Maximum Likelihood and Bayesian inference phylogenetic methods. This work includes the most extensive sampling across the entire distribution, as well as divergence time estimates and environmental niche modelling, which combined offer a spatio-temporal framework for understanding the evolution of the species. Additionally, a series of morphological characters are analyzed to identify significant differences between lineages consistently recovered in the molecular phylogenies. Using this integrative approach, evidence is presented for eight lineages within the S. torquatus complex, five of which correspond to previously recognized subspecies and three represent unnamed taxa masked by morphological conservatism. Finally, to maintain taxonomic stability a lectotype and paralectoype are designated for S. torquatus, and certain taxonomic changes are suggested in order to reflect the phylogenetic relationships within the S. torquatus complex.
format	article
author	Gustavo Campillo-García Oscar Flores-Villela Brett Oliver Butler Julián Andrés Velasco Vinasco Fabiola Ramírez Corona
author_facet	Gustavo Campillo-García Oscar Flores-Villela Brett Oliver Butler Julián Andrés Velasco Vinasco Fabiola Ramírez Corona
author_sort	Gustavo Campillo-García
title	Hidden diversity within a polytypic species: The enigmatic Sceloporus torquatus Wiegmann, 1828 (Reptilia, Squamata, Phrynosomatidae
title_short	Hidden diversity within a polytypic species: The enigmatic Sceloporus torquatus Wiegmann, 1828 (Reptilia, Squamata, Phrynosomatidae
title_full	Hidden diversity within a polytypic species: The enigmatic Sceloporus torquatus Wiegmann, 1828 (Reptilia, Squamata, Phrynosomatidae
title_fullStr	Hidden diversity within a polytypic species: The enigmatic Sceloporus torquatus Wiegmann, 1828 (Reptilia, Squamata, Phrynosomatidae
title_full_unstemmed	Hidden diversity within a polytypic species: The enigmatic Sceloporus torquatus Wiegmann, 1828 (Reptilia, Squamata, Phrynosomatidae
title_sort	hidden diversity within a polytypic species: the enigmatic sceloporus torquatus wiegmann, 1828 (reptilia, squamata, phrynosomatidae
publisher	Pensoft
publishDate	2021
url	https://doaj.org/article/0022c60544ec41ec85c0a491a570b2af
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Hidden diversity within a polytypic species: The enigmatic Sceloporus torquatus Wiegmann, 1828 (Reptilia, Squamata, Phrynosomatidae

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