Characterization of two complete mitochondrial genomes ofPterocryptis anomala(Siluridae) and its phylogeny and cryptic diversity

文献类型： 外文期刊

第一作者： Chen, Weitao

作者： Chen, Weitao;Li, Yuefei;He, Yujie;Li, Xinhui;Li, Jie;He, Yujie

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关键词： Pterocryptis anomala; Mitochondrial genome; Phylogenetic analyses; Cryptic diversity

期刊名称：BIOLOGIA （ 影响因子：1.35； 五年影响因子：1.139 ）

ISSN： 0006-3088

年卷期：

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收录情况： SCI

摘要： Pterocryptis anomala(Siluridae) is an endemic fish species that is distributed in the drainage basins of Southern China. In this study, we reported the complete mitochondrial genomes (mitogenomes) of twoP. anomalaspecimens from different rivers using next-generation sequencing. The gene composition and the structural arrangement of the mitogenomes were similar to those of most other teleosts, although we examined a longer length of control region in these mitogenomes than that in most of published Siluridae mitogenomes. Phylogenetic analyses combining our novel sequences with published mitogenomes and mitochondrial cytochromecoxidase I (COI) sequences indicated the monophyly ofPterocryptisand a sister relationship between speciesP. anomalaandP. cochinchinensis. However, the monophyly ofPterocryptiswas not very robust as a limited number of species were included in our analyses. Additionally, we uncovered that a hidden diversity might occur inP. anomalapopulations. The likely causes for this cryptic diversity might be the geologic movements of intense uplift of the Qinghai-Tibetan Plateau and evolution of Asian monsoons, as well as low vagility ofP. anomala. Our results yielded crucially important insights into the genetic resources, phylogeny and diversity of this endemic species.

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