Hu Yu-Ling, Wu Xiao-Bing, Jiang Zhi-Gang, Yan Peng, Su Xia, Cao Sen-Yang
College of Life Sciences, Anhui Normal University, and Key Laboratory for Conservation and Exploitation of Biological Resource in Anhui Province, Wuhu, 241000, P.R. China.
Biochem Genet. 2007 Oct;45(9-10):697-711. doi: 10.1007/s10528-007-9107-9. Epub 2007 Sep 19.
The Chinese toad Bufo gargarizans has an extensive range, covering nearly all of China. This study addresses the population genetic structure of this toad and the relation to geographic location. Partial sequences of the mtDNA control region were obtained from 14 populations, 29 haplotypes were defined, and 73 variable sites were found, including 66 parsimony informative sites. All population genetic analyses indicated no clear geographic pattern in the distribution of haplotypes. The genetic divergence between the populations was significant. Phylogeographic analyses suggested that past fragmentation and/or long-distance colonization seemed to have shaped the present-day distribution of the haplotypes of B. gargarizans.
中华蟾蜍广泛分布于中国境内几乎所有地区。本研究探讨了该蟾蜍的种群遗传结构及其与地理位置的关系。从14个种群中获取了线粒体DNA控制区的部分序列，定义了29个单倍型，发现73个可变位点，其中包括66个简约信息位点。所有种群遗传分析均表明，单倍型分布不存在明显的地理格局。种群间的遗传分化显著。系统发育地理学分析表明，过去的种群片段化和/或远距离定殖似乎塑造了中华蟾蜍单倍型的当前分布。
