YUAN Zhi-Yong, JIANG Ke, Lü Shun-Qing, YANG Jun-Xiao, NGUYEN Quang Truong, NGUYEN Th. A phylogeny of the Tylototriton asperrimus group (Caudata: Salamandridae) based on a mitochondrial study: suggestions for a taxonomic revision. Zoological Research, 2011, 32(6): 577-584. doi: 10.3724/SP.J.1141.2011.06577
Citation:
YUAN Zhi-Yong, JIANG Ke, Lü Shun-Qing, YANG Jun-Xiao, NGUYEN Quang Truong, NGUYEN Th. A phylogeny of the Tylototriton asperrimus group (Caudata: Salamandridae) based on a mitochondrial study: suggestions for a taxonomic revision. Zoological Research, 2011, 32(6): 577-584. doi: 10.3724/SP.J.1141.2011.06577
YUAN Zhi-Yong, JIANG Ke, Lü Shun-Qing, YANG Jun-Xiao, NGUYEN Quang Truong, NGUYEN Th. A phylogeny of the Tylototriton asperrimus group (Caudata: Salamandridae) based on a mitochondrial study: suggestions for a taxonomic revision. Zoological Research, 2011, 32(6): 577-584. doi: 10.3724/SP.J.1141.2011.06577
Citation:
YUAN Zhi-Yong, JIANG Ke, Lü Shun-Qing, YANG Jun-Xiao, NGUYEN Quang Truong, NGUYEN Th. A phylogeny of the Tylototriton asperrimus group (Caudata: Salamandridae) based on a mitochondrial study: suggestions for a taxonomic revision. Zoological Research, 2011, 32(6): 577-584. doi: 10.3724/SP.J.1141.2011.06577
State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, the Chinese Academy of Sciences, Kunming Yunnan 650223, China; 2. College of Life and Environment Sciences, Huangshan University, Huangshan Anhui 245021, China; 3. Institute of Ecology and Biological Resources, 18 Hoang Quoc Viet St., Hanoi, Vietnam; 4. Vietnam National Museum of Nature, 18 Hoang Quoc Viet St., Hanoi, Vietnam
Funds:
This work was supported by grants from the Ministry of Science and Technology of China (MOST Grant 2011FY120200), the National Natural Science Foundation of China (31090100, 30870281), the Chinese Academy of Sciences (KSCX2-YW-Z-0807, KSCX2-EW-Z-2), and the Bureau of Science and Technology of Yunnan province.
A phylogenetic hypothesis for the Asian newts of the Tylototriton asperrimus 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.
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