Oshida T, Masuda R, Yoshida M C
Chromosome Research Unit, Faculty of Science, Hokkaido University, Sapporo, Japan.
Zoolog Sci. 1996 Aug;13(4):615-20. doi: 10.2108/zsj.13.615.
In order to investigate phylogenetic relationships of the family Sciuridae living in Japan, we sequenced partial regions (379 bases) of mitochondrial 12S rRNA genes in six species of Japanese and other Asian squirrels. Phylogenetic trees constructed by sequence data indicated that two genera of flying squirrels (Petaurista and Pteromys) were clustered in a group distinct from non-flying squirrels, suggesting a possible monophyletic relationships of these flying squirrels. The evolutionary distance between the Japanese squirrel (Sciurus lis) from Honshu island and the Eurasian red squirrel (Sciurus vulgaris) from Hokkaido island was comparable to intraspecific distances of the remaining species examined.
为了研究生活在日本的松鼠科动物的系统发育关系，我们对六种日本松鼠和其他亚洲松鼠的线粒体12S rRNA基因的部分区域（379个碱基）进行了测序。根据序列数据构建的系统发育树表明，两个飞鼠属（复齿鼯鼠属和鼯鼠属）聚为一组，与非飞鼠不同，这表明这些飞鼠可能存在单系关系。本州岛的日本松鼠（日本松鼠）和北海道岛的欧亚红松鼠之间的进化距离与所检测的其余物种的种内距离相当。
