Phylogeographic analyses strongly suggest cryptic speciation in the giant spiny frog (Dicroglossidae: Paa spinosa) and interspecies hybridization in Paa.

Species identification is one of the most basic yet crucial issues in biology with potentially far-reaching implications for fields such as conservation, population ecology, and epidemiology. The widely distributed but threatened frog Paa spinosa has been speculated to represent a complex of multipl...

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Autores principales:	Shupei Ye, Hua Huang, Rongquan Zheng, Jiayong Zhang, Guang Yang, Shixia Xu
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/dbd442e2d6eb49cc8303bcfd1c5e42bd
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spelling	oai:doaj.org-article:dbd442e2d6eb49cc8303bcfd1c5e42bd2021-11-18T09:01:47ZPhylogeographic analyses strongly suggest cryptic speciation in the giant spiny frog (Dicroglossidae: Paa spinosa) and interspecies hybridization in Paa.1932-620310.1371/journal.pone.0070403https://doaj.org/article/dbd442e2d6eb49cc8303bcfd1c5e42bd2013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23936199/?tool=EBIhttps://doaj.org/toc/1932-6203Species identification is one of the most basic yet crucial issues in biology with potentially far-reaching implications for fields such as conservation, population ecology, and epidemiology. The widely distributed but threatened frog Paa spinosa has been speculated to represent a complex of multiple species. In this study, 254 individuals representing species of the genus Paa were investigated along the entire range of P. spinosa: 196 specimens of P. spinosa, 8 specimens of P. jiulongensis, 5 specimens of P. boulengeri, 20 specimens of P. exilispinosa, and 25 specimens of P. shini. Approximately 1333 bp of mtDNA sequence data (genes 12S rRNA and 16S rRNA) were used. Phylogenetic analyses were conducted using maximum parsimony, maximum likelihood and Bayesian inference. BEAST was used to estimate divergence dates of major clades. Results suggest that P. spinosa can be divided into three distinct major lineages. Each major lineage totally corresponds to geographical regions, revealing the presence of three candidate cryptic species. Isolation and differentiation among lineages are further supported by the great genetic distances between the lineages. The bifurcating phylogenetic pattern also suggests an east-west dispersal trend during historic cryptic speciation. Dating analysis estimates that P. spinosa from Western China split from the remaining P. spinosa populations in the Miocene and that P. spinosa from Eastern China diverged from Central China in the Pliocene. We also found that P. exilispinosa from Mainland China and Hong Kong might have a complex of multiple species. After identifying cryptic lineages, we then determine the discrepancy between the mtDNA and the morphotypes in several individuals. This discrepancy may have been caused by introgressive hybridization between P. spinosa and P. shini.Shupei YeHua HuangRongquan ZhengJiayong ZhangGuang YangShixia XuPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 7, p e70403 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Shupei Ye Hua Huang Rongquan Zheng Jiayong Zhang Guang Yang Shixia Xu Phylogeographic analyses strongly suggest cryptic speciation in the giant spiny frog (Dicroglossidae: Paa spinosa) and interspecies hybridization in Paa.
description	Species identification is one of the most basic yet crucial issues in biology with potentially far-reaching implications for fields such as conservation, population ecology, and epidemiology. The widely distributed but threatened frog Paa spinosa has been speculated to represent a complex of multiple species. In this study, 254 individuals representing species of the genus Paa were investigated along the entire range of P. spinosa: 196 specimens of P. spinosa, 8 specimens of P. jiulongensis, 5 specimens of P. boulengeri, 20 specimens of P. exilispinosa, and 25 specimens of P. shini. Approximately 1333 bp of mtDNA sequence data (genes 12S rRNA and 16S rRNA) were used. Phylogenetic analyses were conducted using maximum parsimony, maximum likelihood and Bayesian inference. BEAST was used to estimate divergence dates of major clades. Results suggest that P. spinosa can be divided into three distinct major lineages. Each major lineage totally corresponds to geographical regions, revealing the presence of three candidate cryptic species. Isolation and differentiation among lineages are further supported by the great genetic distances between the lineages. The bifurcating phylogenetic pattern also suggests an east-west dispersal trend during historic cryptic speciation. Dating analysis estimates that P. spinosa from Western China split from the remaining P. spinosa populations in the Miocene and that P. spinosa from Eastern China diverged from Central China in the Pliocene. We also found that P. exilispinosa from Mainland China and Hong Kong might have a complex of multiple species. After identifying cryptic lineages, we then determine the discrepancy between the mtDNA and the morphotypes in several individuals. This discrepancy may have been caused by introgressive hybridization between P. spinosa and P. shini.
format	article
author	Shupei Ye Hua Huang Rongquan Zheng Jiayong Zhang Guang Yang Shixia Xu
author_facet	Shupei Ye Hua Huang Rongquan Zheng Jiayong Zhang Guang Yang Shixia Xu
author_sort	Shupei Ye
title	Phylogeographic analyses strongly suggest cryptic speciation in the giant spiny frog (Dicroglossidae: Paa spinosa) and interspecies hybridization in Paa.
title_short	Phylogeographic analyses strongly suggest cryptic speciation in the giant spiny frog (Dicroglossidae: Paa spinosa) and interspecies hybridization in Paa.
title_full	Phylogeographic analyses strongly suggest cryptic speciation in the giant spiny frog (Dicroglossidae: Paa spinosa) and interspecies hybridization in Paa.
title_fullStr	Phylogeographic analyses strongly suggest cryptic speciation in the giant spiny frog (Dicroglossidae: Paa spinosa) and interspecies hybridization in Paa.
title_full_unstemmed	Phylogeographic analyses strongly suggest cryptic speciation in the giant spiny frog (Dicroglossidae: Paa spinosa) and interspecies hybridization in Paa.
title_sort	phylogeographic analyses strongly suggest cryptic speciation in the giant spiny frog (dicroglossidae: paa spinosa) and interspecies hybridization in paa.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/dbd442e2d6eb49cc8303bcfd1c5e42bd
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Phylogeographic analyses strongly suggest cryptic speciation in the giant spiny frog (Dicroglossidae: Paa spinosa) and interspecies hybridization in Paa.

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