Phylogeography of the Oriental dobsonfly, Neoneuromus ignobilis (Navas), suggests Pleistocene allopatric isolation and glacial dispersal shaping its wide distribution

文献类型： 外文期刊

第一作者： Lin, Aili

作者： Lin, Aili;Liu, Xingyue;Cao, Lijun;Wei, Shujun

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期刊名称：SYSTEMATIC ENTOMOLOGY （ 影响因子：3.844； 五年影响因子：4.171 ）

ISSN： 0307-6970

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收录情况： SCI

摘要： We explored the population structure and demographic history of an endemic but widespread Oriental dobsonfly, Neoneuromus ignobilis (Navas) (Megaloptera: Corydalidae), based on mitochondrial genomic and microsatellite datasets. Our results show that the 20 geographical populations of N. ignobilis presently sampled in East and Southeast Asia belong to five major lineages discriminated as southern Vietnam, Yunnan + Laos + northwestern Vietnam, southwestern Guangxi, central China and eastern China. We propose that early differentiation of populations probably occurred in Indochina and Yunnan due to vicariance events, and that populations from central and eastern China might have originated from southwestern Guangxi by dispersal. The continuous population expansion since the last interglacial, as revealed by demographic history and niche modelling analyses, explains the widespread pattern of N. ignobilis and highlights the relatively weak impact of the Quaternary glaciations on the East Asian biota.

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