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竹鼠亚科四个物种的比较谱系地理学研究-唐利洲

日期:2016-10-18|来源:

中国西南部动物的遗传多样性分布与构造运动及水系演替密切相关,是理解该地区古地质环境与生命过程协同演化关系的重要窗口。本项目拟选择竹鼠亚科同域分布的四个竹鼠种为研究对象,采用线粒体和微卫星两种分子标记相结合的分子生物学方法,研究四个物种整个分布区域的遗传多样性和谱系地理结构。通过多物种谱系地理格局形成的耦合分析,检验云贵高原地区地质构造运动和历史气候变化的影响范围和时间,以及同域分布的不同竹鼠物种对此作出的响应模式。取得的研究成果有望为地质学相关假说提供生物学证据,并为我国西南生态脆弱区的生物多样性保护提供重要的参考依据。

The distribution of animal genetic diversity is closely related to geological tectonic movement and drainage system succession in southwest China, which is an important window to understand the coevolution relationship between regional ancient geological environment and life processes. By selecting four sympatric bamboo rat species of subfamily Rhizomyidae as research object, this project intends to adopt a combination of two selected molecular markers of mitochondria DNA and microsatellite to investigate the genetic diversity and phylogeographical structure of these four species in the whole distribution area. In addition, the influenced range and time of geological tectonic movement and historical climate change, and the relative response pattern of the four sympatric species need together to be proved by coupling analyses of multispecies phylogeographical pattern formation. All expected research findings could provide reliable biologic evidence for the related geological hypotheses, and provide important scientific basis for the regional protection of biodiversity in ecological fragile zone of southwest China.


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