Evolutionary diversification of alpine ginger reflects the early uplift of the Himalayan-Tibetan Plateau and rapid extrusion of Indochina
Evolutionary diversification of alpine ginger reflects the early uplift of the Himalayan-Tibetan Plateau and rapid extrusion of Indochina
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DOI：
10.1016/j.gr.2015.02.004
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发表时间：
2016-04
影响因子：
6.1
通讯作者：
Jian‐Li Zhao;Yongmei Xia;C. Cannon;W. Kress;Qing‐Jun Li
中科院分区：
文献类型：
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作者：
Jian‐Li Zhao;Yongmei Xia;C. Cannon;W. Kress;Qing‐Jun Li
许多分类群的进化多样化，特别是那些扩散能力有限的分类群，往往是由关键的地质事件驱动的，例如构造漂移、大陆碰撞和山脉隆起。在这里，我们使用全方位地理采样为泛喜马拉雅地区的两个高山生姜属（Cautleya和Roscoea）创建了一个过时的分子系统发育，并测试了该群体的进化多样性与研究区域主要地质事件之间的相关性。我们的研究结果表明，它们共同祖先的起源和两个属之间的进化分裂发生在始新世中期和始新世晚期到渐新世早期，这与所提出的喜马拉雅-青藏高原的两次早期隆起很好地对应。Roscoea种是已知海拔最高的生姜，随后被分为不同的喜马拉雅和印度支那分支，与印度支那的快速挤压同时发生，并伴随着围绕印度支那的第三次喜马拉雅隆起。渐新世/中新世边界。这项研究强调了植物进化多样化作为反映喜马拉雅-印度支那地区构造事件的独立证据的重要性。
The evolutionary diversifications of many taxonomic groups, especially those with limited dispersal ability, are often driven by key geological events, such as tectonic drift, continental collisions, and uplifts of mountains. Here, we use full range geographic sampling to create a dated molecular phylogeny for two genera of alpine gingers (CautleyaandRoscoea) in the Pan-Himalaya, and test the correlations between evolutionary diversification of this group and major geological events in the studied region. Our results revealed that the origination of their common ancestor and evolutionary split between the two genera occurred during the middle Eocene and the late Eocene to the early Oligocene, corresponding well to the proposed two early uplifts of the Himalayan–Tibetan Plateau.Roscoeaspecies, the highest elevation gingers known, were then divided into distinct Himalayan and Indochinese clades, simultaneous with the rapid extrusion of Indochina and accompanied by the third Himalayan uplift around the Oligocene/Miocene boundary. This study highlights the importance of evolutionary diversification of plants as an independent line of evidence to reflect tectonic events in the Himalayan–Indochinese region.