Phylogenetic implications of variations in rDNA and mtDNA in red-backed voles collected in Hokkaido, Japan, and in Korea
Phylogenetic implications of variations in rDNA and mtDNA in red-backed voles collected in Hokkaido, Japan, and in Korea
复制标题
北海道、日本和韩国采集的红背田鼠 rDNA 和 mtDNA 变异的系统发育意义
DOI：
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发表时间：
1996
期刊：
影响因子：
--
通讯作者：
Hitoshi Suzuki
中科院分区：
文献类型：
--
作者：
S. Wakana;M. Sakaizumi;K. Tsuchiya;M. Asakawa;Sang;K. Nakata;Hitoshi Suzuki
对在北海道（日本）和韩国收集的红背田鼠的核核糖体 DNA (rDNA) 间隔区和线粒体 DNA (mtDNA) 中的限制性片段长度多态性 (RFLP) 进行了检查。根据牙齿形态等形态特征，这些田鼠被分为六个物种。 rDNA 的 RFLP 使我们能够将田鼠分为三个不同的组：rCrt（Clethrionomys rutilus）、rCrf（C. rufocanus、C. sikotanensis 和 Eothenomys regulus）和 rCrx（C. rex 和 C. montanus）。 rCrt 和 rCrf 之间以及 rCrf 和 rCrx 之间的估计序列差异分别为 4.8% 和 2.3%。在rCRF组中，北海道大陆、利尻岛和大黑岛的人群之间没有观察到线粒体DNA的重大差异。同样，在rCrx群体中，来自北海道大陆和利尻I.的mtDNA单倍型彼此密切相关，表明物种形成后种群之间存在遗传交换，或者这些单倍型源自最近的共同起源。韩国红背田鼠（有时被称为 E. regulus）的 rDNA 与北海道 rCRF 群的 rDNA 相同。相比之下，韩国田鼠的 mtDNA 单倍型与北海道 C. rufocanus 的 mtDNA 单倍型有很大不同（8% 序列差异）。这些结果表明，朝鲜红背田鼠和北海道的 C. rufocanus 密切相关，并且在不同的地理区域中保持了祖先分化的 mtDNA 单倍型。
Restriction fragment length polymorphisms (RFLPs) in nuclear ribosomal DNA (rDNA) spacers and mitochondrial DNA (mtDNA) were examined in red-backed voles collected in Hokkaido (Japan), and Korea. These voles have been classified into six species on the basis of morphological characteristics, such as dental morphology. The RFLPs of the rDNA allowed us to classify the voles into three distinct groups : rCrt (Clethrionomys rutilus), rCrf (C. rufocanus, C. sikotanensis and Eothenomys regulus) and rCrx (C. rex and C. montanus). The estimated sequence divergence between rCrt and rCrf and that between rCrf and rCrx were 4.8% and 2.3%, respectively. In the rCrf group, no major differences in mtDNA were observed among the populations from the mainland of Hokkaido, Rishiri Island, and Daikoku Islet. Similarly, in the rCrx group, mtDNA haplotypes from the mainland of Hokkaido and Rishiri I. were closely related each other, indicating that there have been genetic exchanges between the populations after speciation, or those haplotypes are derived from recent common origin. The Korean red-backed vole, which is sometimes referred to E. regulus, had rDNA identical to that of the rCrf group from Hokkaido. By contrast, the mtDNA haplotype of the Korean vole was substantially different from that of C. rufocanus in Hokkaido (8% sequence divergence). These results imply that the Korean red-backed vole and C. rufocanus in Hokkaido are very closely related and that ancestrally diverged mtDNA haplotypes have been maintained in the different geographic regions.
小鼠线粒体 DNA 进化。
影响因子：
3.3
作者：
Ferris,SD;Sage,RD;Prager,EM;Ritte,U;Wilson,AC
通讯作者：
Wilson,AC