Molecular phylogeography and ecological niche modelling of a widespread herbaceous climber, Tetrastigma hemsleyanum (Vitaceae): insights into Plio-Pleistocene range dynamics of evergreen forest in subtropical China
Molecular phylogeography and ecological niche modelling of a widespread herbaceous climber, Tetrastigma hemsleyanum (Vitaceae): insights into Plio-Pleistocene range dynamics of evergreen forest in subtropical China
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广泛分布的草本攀缘植物Tetrastigma hemsleyanum（葡萄科）的分子系统发育地理学和生态位模型：对中国亚热带常绿森林上老-更新世范围动态的见解
DOI：
10.1111/nph.13261
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发表时间：
2015-04-01
期刊：
影响因子：
9.4
通讯作者：
Fu, Cheng-Xin
中科院分区：
文献类型：
--
作者：
Wang, Yi-Han;Jiang, Wei-Mei;Fu, Cheng-Xin
暖温带万年青林是中国亚热带典型的植被类型，但其组成物种对过去环境变化的响应仍不清楚。在这里，我们重建的进化历史的三叶青，草本攀缘植物仅限于WTE森林。20个种群的基因型，叶绿体DNA序列和核微卫星位点，以评估人口结构和多样性，辅以系统发育年代，祖先地区重建和生态位建模（ENM）的物种分布在末次盛冰期（LGM）和现在。在上新世早期，中国西南部与中-南-东部的谱系通过气候/构造引起的祖先南部山脉的分离而分化。西南部的长期稳定性与早更新世至中更新世期间中东南部地区的纬度范围变化形成对比。遗传和ENM数据强烈建议避难所的持久性在LGM原位。前第四纪环境的变化似乎有一个持久的影响，这亚热带WTE森林物种的种群遗传结构。我们的研究结果表明，相对稳定的人口在中国这个生物群落在最后一次冰期-间冰期周期，与古生物群落重建表明，这森林生物群落撤退到今天的热带华南地区在末次冰期。
Warm-temperate evergreen (WTE) forest represents the typical vegetation type of subtropical China, but how its component species responded to past environmental change remains largely unknown. Here, we reconstruct the evolutionary history of Tetrastigma hemsleyanum, an herbaceous climber restricted to the WTE forest. Twenty populations were genotyped using chloroplast DNA sequences and nuclear microsatellite loci to assess population structure and diversity, supplemented by phylogenetic dating, ancestral area reconstructions and ecological niche modeling (ENM) of the species distributions during the Last Glacial Maximum (LGM) and at present. Lineages in Southwest vs Central-South-East China diverged through climate/tectonic-induced vicariance of an ancestral southern range during the early Pliocene. Long-term stability in the Southwest contrasts with latitudinal range shifts in the Central-South-East region during the early-to-mid-Pleistocene. Genetic and ENM data strongly suggest refugial persistence in situ at the LGM. Pre-Quaternary environmental changes appear to have had a persistent influence on the population genetic structure of this subtropical WTE forest species. Our findings suggest relative demographic stability of this biome in China over the last glacial-interglacial cycle, in contrast with palaeobiome reconstructions showing that this forest biome retreated to areas of today's tropical South China during the LGM.