Phylogeography of the Russian flying squirrel (Pteromys volans): implication of refugia theory in arboreal small mammal of Eurasia
Phylogeography of the Russian flying squirrel (Pteromys volans): implication of refugia theory in arboreal small mammal of Eurasia
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DOI：
10.1111/j.1365-294x.2005.02475.x
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发表时间：
2005-03
影响因子：
4.9
通讯作者：
T. Oshida;A. Abramov;H. Yanagawa;R. Masuda
中科院分区：
文献类型：
--
作者：
T. Oshida;A. Abramov;H. Yanagawa;R. Masuda
使用完整的线粒体（mt）细胞色素b基因序列对俄罗斯（西伯利亚）鼯鼠（Pteromys volans）进行了系统发育地理学研究，特别参考了该物种树栖特征的避难所理论。我们检查了来自 24 个地点的 31 个样本，产生了 28 个单倍型。来自日本北海道的一个具有独特单倍型的繁殖标本被纳入系统发育分析。线粒体DNA谱系分为三个：北海道、远东和欧亚大陆北部。谱系之间的分歧数据表明，北海道族群在荷尔斯泰因间冰期期间与其他族群分离。 P. volans 的系统发育地理学模式与之前报道的与无树栖息地相关的陆生啮齿动物不同。与草原不同的是，由于寒冷和干旱的环境条件，冰川时期森林减少并向南移动。飞鱼的冰川栖息地可能与更新世的森林动态有关。
A phylogeographical study of the Russian (Siberian) flying squirrel (Pteromys volans) was carried out using the complete mitochondrial (mt) cytochrome b gene sequences with special reference to the refugia theory for the arboreal traits of this species. We examined 31 specimens from 24 localities, resulting in 28 haplotypes. One breeding specimen with a unique haplotype from Hokkaido, Japan was included in the phylogenetic analysis. There were three mtDNA lineages: Hokkaido, Far Eastern, and northern Eurasia. Divergence data among lineages demonstrated that the Hokkaido group separated from the other groups during the Holsteinian interglacial. The phylogeographical pattern of P. volans is different from that previously reported for terrestrial rodents associated with treeless habitats. Unlike grasslands, forests decreased during glaciation and moved southward because of the cold and arid environmental conditions. The glacial refugia of P. volans would have been associated with forest dynamics in the Pleistocene.