Molecular phylogeny of East Asian moles inferred from the sequence variation of the mitochondrial cytochrome b gene
Molecular phylogeny of East Asian moles inferred from the sequence variation of the mitochondrial cytochrome b gene
复制标题
DOI：
10.1266/ggs.75.17
复制
发表时间：
2000-02-01
影响因子：
1.1
通讯作者：
Kryukov, AP
中科院分区：
文献类型：
--
作者：
Tsuchiya, K;Suzuki, H;Kryukov, AP
分类学分析先前已经揭示，居住在日本的鼹鼠物种具有异常丰富的物种多样性和高度的特有性。本研究主要研究了日本四种鼹鼠的进化历史，分析了线粒体细胞色素B（cyt B）基因序列，并将其与中国大陆的Mogera wogura（朝鲜和俄罗斯种群）、Mogera wogura（朝鲜和俄罗斯种群）和Mogera wogura（朝鲜和俄罗斯种群）进行了比较。insularis和Talpa europaea，T.阿尔泰草分别来自欧亚大陆西部和中部。我们的数据支持这样一种观点，即在欧亚大陆的某个辐射中心，一个亲本种群进化成现代的鼹鼠状形态，并在进化过程中间歇性地辐射几次，在辐射的每个阶段将其分支扩展到其他周边地理区域。在此假设下，日本鼹鼠的四个谱系，E。mizura，M. tokudae，M. imaizumii和M.和仓，可以解释为移民到日本在这个顺序。Mogera wogura和M. imaizumii表现出大量的地理变异和cyt B基因类型的复杂分布。这些种内变异可能与更新世冰期日本列岛鼹鼠的扩张过程有关。
Taxonomic analysis has previously revealed that the species of moles that inhabit Japan are characterized by exceptional species richness and a high level of endemism. Here, we focused on the evolutionary history of the four Japanese mole species of the genera Euroscapter and Mogera, examining mitochondrial cytochrome b (cyt b) gene sequences and comparing them with those of continental Mogera wogura (Korean and Russian populations), M. insularis from Taiwan, and Talpa europaea and T. altaica from the western and central Eurasian continent, respectively. Our data support the idea that in a radiation center somewhere on the Eurasian continent, a parental stock evolved to modern mole-like morph and radiated several times intermittently during the course of the evolution, spreading its branches to other peripheral geographic domains at each stage of the radiation. Under this hypothesis, the four lineages of Japanese mole species, E. mizura, M. tokudae, M. imaizumii, and M. wogura, could be explained to have immigrated to Japan in this order. Mogera wogura and M. imaizumii showed substantial amounts of geographic variation and somewhat complicated distributions of the cyt b gene types. These intraspecific variations are likely to be associated with the expansion processes of moles in the Japanese Islands during the Pleistocene glacial ages.