Elucidation of genetic diversity of Echinotriton andersoni and its conservation

通过野外观察和线粒体DNA基因变异，分别研究了安德氏鳄蝾螈（Echinotriton andersoni）的种群内和种群间遗传多样性。结果表明，天美类群与冲绳类群之间存在较大的遗传分化，冲绳岛北部、中部和半岛类群之间存在非单系关系，冲绳岛南部类群与Tokashikijima类群的亲缘关系较其他类群密切。我们的研究结果也表明冲绳南部人群的遗传一致性。

Distribution and intra- and inter-populational geneticdiversities of the Anderson's crocodile newt, Echinotriton andersoni, were investigated by field observations and by variation of mitochondrial DNA genes, respectively. Results indicated a relatively large genetic differentiation between populations of Amami and Okinawa Groups, non-monophylies of northern, central and peninsular populations of Okinawajima, and a closer relationship of southern Okinawajima population with Tokashikijima population than with other Okinawajima populations. Our results also suggested a genetic uniformity of sotlthern Okinawajima population.