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论文题目: Complex Longitudinal Diversification across South China and Vietnam in Stejneger's pit viper, Viridovipera stejnegeri (Schmidt, 1925) (Reptilia: Serpentes: Viperidae)
作者: Guo P, Liu Q, Zhu F, Zhong GH, Chen X, Myers EA, Che J, Zhang L, Ziegler T, Nguyen TQ, Burbrink FT
联系作者: ybguop@163.com
发表年度: 2016
DOI:
摘要:

  Viridovipera stejnegeri is one of the most common pitvipers in Asia, with a wide distribution in southern China and Vietnam. We investigated historical demography and explored how the environment and climatic factors have shaped genetic diversity and the evolutionary history of this venomous snake. A total of 171 samples from 47 localities were sequenced and analyzed for two mitochondrial gene fragments and three nuclear genes. Gene trees reveal the existence of two well-supported clades (Southwest China and Southeast China) with seven distinct and strongly supported, geographically structured subclades within V. stejnegeri. Estimation of divergence time and ancestral area suggests that V. stejnegeri originated at ~6.0 Ma in the late Miocene on the Yunnan-Guizhou Plateau. The estimated date of origin and divergence of the island populations of Taiwan and Hainan closely matches the geological origin of the both islands. The mtDNA gene tree reveals the presence of west-east diversification in V. stejnegeri populations. Complex orogenesis, heterogeneous habitats, as well as climate-mediated habitat differentiation including glacial cycles, all have influenced population structure and the distribution of this taxon. The validity of V. stejnegeri chenbihuii is questionable, and this subspecies most probably represents an invalid taxon.  

刊物名称: Molecular Ecology
论文出处: http://onlinelibrary.wiley.com/doi/10.1111/mec.13658/epdf
影响因子: 6.494 (2014年)