A phylogeographic, demographic and historical analysis of the short-tailed pit viper (Gloydius brevicaudus): evidence for early divergence and late expansion during the Pleistocene
A phylogeographic, demographic and historical analysis of the short-tailed pit viper (Gloydius brevicaudus): evidence for early divergence and late expansion during the Pleistocene
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DOI：
10.1111/j.1365-294x.2011.05060.x
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发表时间：
2011-05-01
影响因子：
4.9
通讯作者：
Zhao, Er-Mi
中科院分区：
文献类型：
--
作者：
Ding, Li;Gan, Xiao-Ni;Zhao, Er-Mi
中国东部第四纪冰川作用对当地发那亚和植物区系的影响一直是人们感兴趣的话题。我们使用线粒体DNA序列数据和合并模拟来检验两个普遍的生物地理学假说，这些假说与更新世气候波动对中国东部和朝鲜半岛广泛分布的蛇形目动物(Gloydius Brevicaudus)的影响有关。系统发育分析显示了东南沿海、扬子和北方三个主要谱系。后两者关系密切，共同构成一个大陆谱系。分歧测年和拼接模拟表明，东南沿海和大陆内陆的谱系之间存在着晚上新世至早更新世的分化，而来自北部和长江流域中下游的谱系之间则存在着跨越中国东部的中晚更新世的分化，这表明所有这些谱系都发生在最后一次冰川盛期之前。在大陆谱系内的两个谱系之间也观察到重叠的范围，并观察到与中国平原北部边缘的生态过渡带有关的次级接触。这些结果表明，在短尾棉的历史上，变异模式占主导地位。尽管更新世的气候事件对中国爬行动物的历史分布和种内分化产生了显著的影响，但合并和非合并的人口统计学分析表明，在晚更新世，短尾龙的所有谱系似乎并没有受到冰川旋回的不利影响，这可能是由于自中更新世以来海拔下降和季风发展导致东亚气候温和栖息地的数量增加。
The impact of quaternary glaciation in eastern China on local fanua and flora has been a topic of considerable interest. We used mitochondrial DNA (mtDNA) sequence data and coalescent simulations to test two general biogeographic hypothesis related to the effects of Pleistocene climatic fluctuations for a widespread ophidian species (Gloydius brevicaudus) in eastern China and Korean Peninsula. The phylogenetic analysis revealed three major lineages, the southeast Coastal, Yangtze and North Lineages. The latter two are closely related and jointly form a continental lineage. Divergence dating and coalescent simulations indicate a Late Pliocene to Early Pleistocene divergence between lineages from the southeast coast and continental interior, followed by a mid-to-late Pleistocene divergence between lineages from the north and the middle-lower Yangtze Valley across East China, suggesting that all these lineages predated the last glacial maximum. An overlapping range between the two lineages within the continental lineage and a secondary contact associated with ecological transition zones on the margins of the North China Plain were also observed. These results show that vicariance patterns dominated the history of G. brevicaudus. Though the climatic events of the Pleistocene have had a marked effect on the historical distribution and intra-specific divergence of reptiles in China, coalescent and non-coalescent demographic analyses indicate that all lineages of G. brevicaudus seem not to have been adversely affected by glacial cycles during the Late Pleistocene, presumably because of an increase in the amount of climatically mild habitat in East Asia due to a decline in elevation and the development of monsoons since the Mid-End Pleistocene.