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Zoological Research
Kunming Institute of Zoology, Chinese Academy of Sciences
ISSN: 2095-8137
Vol. 32, No. 6, 2011, pp. 577-584
Bioline Code: zr11084
Full paper language: Chinese
Document type: Research Article
Document available free of charge

Zoological Research, Vol. 32, No. 6, 2011, pp. 577-584

 en A phylogeny of the Tylototriton asperrimus check for this species in other resources group (Caudata: Salamandridae) based on a mitochondrial study: suggestions for a taxonomic revision
YUAN, Zhi-Yong; JIANG, Ke; LÜ, Shun-Qing; YANG, Jun-Xiao; NGUYEN, Quang Truong; NGUYEN, Thien Tao; JIN, Jie-Qiong & CHE, Jing

Abstract

A phylogenetic hypothesis for the Asian newts of the Tylototriton asperrimus check for this species in other resources group was generated using data from two mitochondrial fragments including COI and the ND1-ND2 regions. Four distinct clades (A, B, C, D) were resolved with high nodal support within this monophyletic group. Clade A included T. asperrimus, T. hainanensis, T. notialis, "T. vietnamensis", and two unnamed salamander populations from Vietnam. Clade A, constituted the sister group of clades B + C. Newly identified clade C likely represents a new cryptic species. Clade C was the sister group of T. wenxianensis. The true T. vietnamensis exclusively constituted clade D. Our results bring into question some previous taxonomic decisions, and a revision is required. This study illustrates the necessity to include samples from type localities in taxonomic studies, and highlights the importance of fine-grained geographical sampling.

Keywords
Tylototriton notialis, Tylototriton hainanensis, Salamander, Southeast Asia, Tonkin, Cryptic diversity

 
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