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袁智勇, 蒋 柯, 吕顺清, 杨军校, NGUYEN Quang Truong, NGUYEN Thien Tao. 2011: 基于线粒体基因对细痣疣螈种组系统发育关系的探讨及物种修订建议(英文). 动物学研究, 32(6): 577-584. DOI: 10.3724/SP.J.1141.2011.06577
引用本文: 袁智勇, 蒋 柯, 吕顺清, 杨军校, NGUYEN Quang Truong, NGUYEN Thien Tao. 2011: 基于线粒体基因对细痣疣螈种组系统发育关系的探讨及物种修订建议(英文). 动物学研究, 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. 2011: A phylogeny of the Tylototriton asperrimus group (Caudata: Salamandridae) based on a mitochondrial study: suggestions for a taxonomic revision. Zoological Research, 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. 2011: A phylogeny of the Tylototriton asperrimus group (Caudata: Salamandridae) based on a mitochondrial study: suggestions for a taxonomic revision. Zoological Research, 32(6): 577-584. DOI: 10.3724/SP.J.1141.2011.06577

基于线粒体基因对细痣疣螈种组系统发育关系的探讨及物种修订建议(英文)

A phylogeny of the Tylototriton asperrimus group (Caudata: Salamandridae) based on a mitochondrial study: suggestions for a taxonomic revision

  • 摘要: 该文基于两段线粒体基因COI 和ND1-ND2部分序列片段构建了细痣疣螈种组的系统发育关系, 结果显示该单系群内包含了四个明显的进化支系(A、B、C、D)。A支系与B、C支系构成姐妹群关系; A支系包含了细痣疣螈、海南疣螈、老挝疣螈和“越南疣螈”以及另外两个来自越南未被命名的种群; C支系代表了一个新的独立进化支, 可能是一个隐存种。C支系与B支系构成姐妹群关系。此外,来自模式产地的越南疣螈单独构成支系D。该文结果不支持以往细痣疣螈种组部分物种的划分, 建议对该种组进行新的分类修订。该文强调了在分类研究中应该重视使用来自模式产地的样品并进行广泛的地理居群采样。

     

    Abstract: 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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