Phylogeographic Patterns of mtDNA Variation Revealed Multiple Glacial Refugia for the Frog Species Feirana taihangnica Endemic to the Qinling Mountains
Phylogeographic Patterns of mtDNA Variation Revealed Multiple Glacial Refugia for the Frog Species Feirana taihangnica Endemic to the Qinling Mountains
复制标题
mtDNA变异的谱系地理格局揭示了秦岭特有蛙种Feirana taihangnica的多重冰川庇护所
DOI：
10.1007/s00239-013-9544-5
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发表时间：
2013-03-01
影响因子：
3.9
通讯作者：
Li, Cheng
中科院分区：
文献类型：
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作者：
Wang, Bin;Jiang, Jianping;Li, Cheng
山地物种的多样性格局和人口统计受到更新世气候波动的影响。作为东亚主要生物地理分界线的秦岭地区的经验案例很少。我们利用线粒体ND2基因的DNA序列数据来检测更新世冰川对QM特有的青蛙种Feirana taiang nica系统地理分布的影响。揭示了由7个亚系组成的4个不同的谱系。按这7个亚系划分种群时，生物地理结构的信号最强(F(Ct)=0.971，P<；0.01)。在中QM与东QM的谱系之间发现了一条狭窄的次级接触带。联合模拟表明，该物种以踏脚石模型在QM区定居。中新世晚期至更新世晚期青藏高原的隆升，以及更新世的气候旋回，可能影响了不同谱系之间的分化。联合模拟还表明，在更新世冰期，台湾华山虎种群在QM地区的多个避难所中持续存在。人口统计分析表明，除伏牛山的世系外，所有世系都经历了冰期后种群规模和分布范围的扩大。综上所述，晚中新世-晚更新世的气候波动和构造变化深刻地影响了大黄鱼的系统地理和历史人口学。
Diversification patterns and demography of montane species are affected by Pleistocene climate fluctuations. Empirical cases from the Qinling Mountains (QM) region, which is a major biogeographic divider of East Asia, are few. We used DNA sequence data of the complete mitochondrial ND2 gene to detect effects of the Pleistocene glaciations on phylogeographic profiles of a frog species, Feirana taihangnica, which is endemic to the QM. Four distinct lineages consisting of seven sublineages were revealed. The strongest signal of biogeographical structure (F(ct) = 0.971, P < 0.01) was found when populations were grouped according to these seven sublineages. One narrow secondary contact zone was detected in the middle QM between the lineage from middle QM and the lineage from eastern QM. Coalescent simulations indicated that this species colonized the QM region by a stepping-stone model. Divergences among lineages had likely been influenced by the uplift of the Tibetan Plateau during the late Miocene-to-late Pleistocene, as well as by the Pleistocene climatic cycles. Coalescent simulations also suggested that F. taihangnica populations have persisted through the Pleistocene glacial periods in multiple refugia across the QM region. Demographic analyses indicated that all lineages, except the lineage in the Funiu Mountains, have been experienced postglacial expansion of population size and distribution range. In conclusion, Pleistocene climate fluctuations and tectonic changes during the late Miocene-late Pleistocene have profoundly influenced the phylogeography and historical demography of F. taihangnica.