Molecular phylogeny of Japanese Leporidae, the Amami rabbit Pentalagus furnessi, the Japanese hare Lepus brachyurus, and the mountain hare Lepus timidus, inferred from mitochondrial DNA sequences.
Molecular phylogeny of Japanese Leporidae, the Amami rabbit Pentalagus furnessi, the Japanese hare Lepus brachyurus, and the mountain hare Lepus timidus, inferred from mitochondrial DNA sequences.
复制标题
从线粒体 DNA 序列推断日本兔科动物、奄美兔 Pentalagus Furnessi、日本野兔 Lepus brachyurus 和山兔 Lepus timidus 的分子系统发育。
DOI：
10.1266/ggs.77.107
复制
发表时间：
2002
影响因子：
1.1
通讯作者：
Hitoshi Suzuki
中科院分区：
文献类型：
--
作者：
F. Yamada;Mika Takaki;Hitoshi Suzuki
我们确定了线粒体12 S核糖体RNA（rRNA）和细胞色素B（cyt B）的基因序列在日本的三个兔科物种，奄美兔Pentalagus pentalessi从琉球群岛，日本野兔Lepus brachyurus从本州，和日本形式的山野兔Lepus timidus阿伊努从北海道。我们比较了序列与其他类群的兔类动物在数据库中。12 S rRNA基因序列的系统发育树表明，P. p. lessi的谱系在古代的属辐射期间发生了多样性，估计是在中新世中期。Cyt-b基因树分析表明，L. brachyurus在兔属物种形成的早期阶段就分支出来了，可能是在上新世的开始。L.的cyt B序列。t.阿伊努人有些不同于大陆同种人群，这种谱系分歧可能发生在更新世中期或晚期。结果表明，日本列岛的三个地区，琉球，本州-四国-九州和北海道，现在保存了自己的兔类分类群，每个都有不同程度的遗传地方性。日本兔类动物地理特征可能是东亚兔类动物进化动力学的结果，因为兔类动物的辐射中心可能已经从热带，通过温带，到北极地区。
We determined mitochondrial 12S ribosomal RNA (rRNA) and cytochrome b (cyt b) gene sequences in three leporid species of Japan, the Amami rabbit Pentalagus furnessi from the Ryukyu Islands, the Japanese hare Lepus brachyurus from Honshu, and a Japanese form of the mountain hare Lepus timidus ainu from Hokkaido. We compared the sequences with those of other taxa of leporids available in databases. Phylogenetic trees of the 12S rRNA gene sequences indicated that the lineage of P. furnessi diversified during the generic radiation of the leporids at an ancient time, which was estimated to have been the middle Miocene. Cyt-b gene trees revealed that the lineage of L. brachyurus branched off at an early stage in the speciation of Lepus, probably at the beginning of the Pliocene. The cyt b sequences of L. t. ainu were somewhat distinct from those of continental conspecific populations; this lineage divergence is likely to have occurred during the middle or late Pleistocene. The results show that the three regions of the Japanese archipelago, Ryukyu, Honshu-Shikoku-Kyushu, and Hokkaido, now preserve their own leporid taxa, each with a different extent of genetic endemicity. It is possible that the zoogeographic traits of the Japanese leporids are a consequence of the evolutionary dynamics of leporids in East Asia, in that the radiation centers of leporids are likely to have shifted from tropical, through temperate, to arctic zones.