Karyosystematic Analysis of Japanese Talpine Moles in the Genera Euroscaptor and Mogera (Insectivora, Talpidae)
Karyosystematic Analysis of Japanese Talpine Moles in the Genera Euroscaptor and Mogera (Insectivora, Talpidae)
复制标题
Euroscaptor 属和 Mogera 属（食虫目、Talpidae）日本鼹鼠的核系统分析
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
S. Oda
中科院分区：
文献类型：
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作者：
S. Kawada;M. Harada;Y. Obara;Shuji Kobayashi;K. Koyasu;S. Oda
摘要应用G-带技术对欧洲鼹鼠属和摩盖拉属4种鼹鼠的核型进行了详细的分析。正如之前报道的那样，检查的所有四个物种的染色体数均为2n = 36。Eurocaptor mizura和M.来自爱知县的wogura具有几乎相同的染色体组成和G-带型。这些共同的核型被认为是等同于假设的祖先Mogera核型，因为两个不同的属来自一个祖先共享G-带同源性。根据这一假说，M. imaizumii可能是通过一对端着丝粒染色体11的臂间倒位从祖先核型衍生而来的。两个地理隔离的种群M. tokudae的核型不同，越后居群的核型与M. imaizumii，而佐渡人口有一个衍生的核型，这是能够解释的臂间倒位在三对近端着丝粒，其余染色体11为近端着丝粒。来自韩国的Mogera wogura与日本的M.沃古拉然而，我们推断，四对近端着丝粒染色体的臂间和臂旁倒位可以解释日本和韩国人群之间的核型差异。此外，从11号染色体的形态特征可以推断，朝鲜鼹鼠起源于原始的M。wogura通过四个倒置，与M. imaizumii和M.德大。因此，倒位重排似乎在日本高山鼹鼠的染色体进化中发挥了重要作用。
Abstract A detailed analysis was done on the karyotypes of four species of mole in the genera Euroscaptor and Mogera using a G-banding technique. All four species examined had a chromosome number of 2n = 36, as reported previously. Euroscaptor mizura and M. wogura from Aichi Prefecture had almost the same chromosome constitution and G-banding patterns. These common karyotypes were considered to be equivalent to the hypothetical ancestral karyotype of Mogera, since two distinct genera derived from an ancestor share G-banding homologies. According to this hypothesis, the karyotype of M. imaizumii might have been derived from the ancestral karyotype through pericentric inversion in one pair of acrocentrics, chromosome 11. Two geographically isolated populations of M. tokudae had different karyotypes: the Echigo population had the same karyotype as M. imaizumii, whereas the Sado population had a derivative karyotype that was able to be explained by pericentric inversions in three pairs of acrocentrics, remaining chromosome 11 as subtelocentric. Mogera wogura from South Korea differed considerably in terms of chromosome constitution from the Japanese population of M. wogura. However, we deduced that pericentric and paracentric inversions in four pairs of acrocentrics would explain the karyotype differences between the Japanese and Korean populations. Furthermore, from the morphology of chromosome 11, we can conclude that the Korean mole was derived from primitive M. wogura through four inversions, quite separately from the lineage of M. imaizumii and M. tokudae. Thus, inversion rearrangements appear to have played a major role in the chromosomal evolution of Japanese talpine moles.
Talpidae 科的物种形成和进化（哺乳动物：食虫目）。
DOI：
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发表时间：
1990
期刊：
Progress in clinical and biological research
影响因子：
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作者：
Yates,TL;Moore,DW
通讯作者：
Moore,DW