Phylogeography of the Japanese Giant Flying Squirrel, Petaurista leucogenys, Based on Mitochondrial DNA Control Region Sequences
Phylogeography of the Japanese Giant Flying Squirrel, Petaurista leucogenys, Based on Mitochondrial DNA Control Region Sequences
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基于线粒体 DNA 控制区序列的日本巨鼯鼠 Petaurista leucogenys 的系统发育地理学
DOI：
10.2108/zsj.18.107
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发表时间：
2001
影响因子：
1
通讯作者：
R. Masuda
中科院分区：
文献类型：
--
作者：
T. Oshida;K. Ikeda;Kazuhiko Yamada;R. Masuda
为了研究日本巨型飞鼠Petaurista leucgenys种群的遗传多样性，对来自日本本州、四国岛和九州群岛17个地区的37个标本的线粒体DNA控制区序列(1052-1054个碱基)进行了测定。在检测的37只动物中，鉴定出24种单倍型。来自九州的所有单倍型由1,052个碱基组成，而来自本州和四国的单倍型由1,054个碱基组成，其中包括两个插入，除了3个单倍型(有1,052或1,053个碱基)。用邻接法和最大简约法重建的系统发育关系表明，白杨的系统发育基本上分为三个主要谱系：A组由来自九州的单倍型组成，B组由来自九州的一些单倍型和一个来自本州的单倍型组成，C组主要由来自本州和四国岛的单倍型组成。具有九州单倍型的动物被分成两个谱系(A组和B组)，这表明A组在较早的时候与其他组分开。C组的遗传距离与采样点之间的地理距离无关，这表明该组的祖先种群最近在很短的时间内扩大了分布，可能是在最后一次冰期之后。
Abstract To investigate genetic diversity among populations of the Japanese giant flying squirrel Petaurista leucogenys, the mitochondrial DNA control region sequences (1,052–1,054 bases) were determined in 37 specimens from 17 localities on the Honshu, Shikoku, and Kyushu Islands of Japan. Of the 37 animals examined, 24 haplotypes were identified. All haplotypes from Kyushu consisted of 1,052 bases, whereas those from Honshu and Shikoku consisted of 1,054 bases including two insertions, except for three haplotypes (which had 1,052 or 1,053 bases). Phylogenetic relationships reconstructed using neighbor-joining and maximum parsimony methods indicated that P. leucogenys is essentially separated into three major lineages: Group A consisting of a single haplotype from Kyushu, Group B consisting of some haplotypes from Kyushu and one haplotype from Honshu, and Group C consisting mostly of haplotypes from Honshu and Shikoku. Animals with the Kyushu haplotypes were split into two lineages (Groups A and B), suggesting that Group A diverged at an earlier point from the other groups. Genetic distances in Group C were not related to geographic distances between sampling localities, indicating that ancestral populations of this group recently expanded their distribution in a short time, possibly after the last glacial stage.