Genetic and population structure of the least shrews Sorex minutissimus in Eurasia

欧亚大陆最小的鼩鼱 Sorex minutissimus 的遗传和种群结构

• 批准号: 17570009
• 负责人: OHDACHI Satoshi
• 金额: $ 2.3万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17570009/
• 关键词: Sorex minutissimus; cytochrome b; control region; genetic variation; geographic variation; phylogeography; 生息地分断化; マイクロサテライト遺伝子

In 2005, samples obtained from reserved specimens and those captured by myself is as follows : 15 specimens from Finland, 1 from Norway, 1 from Kamchatka, 4 from Magadan region (Russia), 5 from Primorski, 1 from Khabarovsk region, 2 from Sakhalin, 1 from Kunashiri Island, 11 from Satobetsu (Hokkaido), 5 from Nemuro, 2 from Hamanaka-cho, and 5 from Kenbokki Island. In 2006, 12 shrews from Shiranuka-cho (Hokkaido), 1 from Sarufutsu-mura, and 1 from northern Mongolia were captured by myself. According to the sampling, new knowledge about habitat of Sorex minutissimus was obtained. Sorex minutissimus was captured in sand dune and rocky place, which are rarely used by other shrew species. Thus, it is suggested that S. minutissimus might be pushed to unpreferable habits by other competitively dominant species.Phylogenetic investigation was conducted based on sequences of the mitochondrial cytochrome b and the control region. Populations genetically rather differentiated between the eastern and western parts of Eurasia. In addition, within the eastern Eurasian population, genetic diversification was observed, corresponding to geographic position. There was little genetic variation within Hokkaido population whereas there was much genetic variation within Finnish population although sampling area were almost the same between the two. The low genetic variation in Hokkaido population may be the result of a recent bottleneck event of population. The high variation in Finland may have been related to continental ice sheet development in the last glacial age. In the last glacial age, northern Europe was covered with ice sheet. Thus, Finnish S. minutissimus might have retreated to several refugia and returned to the Finland from several regions after warming, causing a genetic mixture of various haplotypes.

2005年，从保留标本获得的样品和我自己捕获的样本如下：15个标本，来自挪威的1个标本，挪威的1个标本，1个来自Kamchatka的标本，来自Magadan地区（俄罗斯）的4个，来自Pripororski的5个，1个，1个，来自Khabarovsk地区的1个，来自Sakhalin，来自Sakhalin，来自Kunashiri Islands的1个，来自Satobetsu（NEM），NEM，satobetsu（Nem）（kunashiri Island）（kunashiri Island）（kunashiri Island）（kunaShiri Island）。 Hamanaka-Cho，5位来自Kenbokki岛。 2006年，Shiranuka-Cho（北海道）的12个sh，Sarufutsu-Mura的1架，北蒙古的1个sh被我捕获。根据抽样，获得了有关Sorex细菌栖息地的新知识。 Sorex Minutissimus被捕获在沙丘和岩石的地方，这些地方很少被其他Shrew物种使用。因此，有人提出，细节链球菌可能会被其他竞争优势的物种推向不可剥夺的习惯。基于线粒体细胞色素B和对照区域的序列进行了系统发育研究。遗传上的人口在欧亚大陆的东部和西部之间相当区分。此外，在东欧亚人口中，观察到遗传多样化，对应于地理位置。北海道人口中几乎没有遗传变异，而芬兰种群中的遗传变异很大，尽管两者之间的抽样面积几乎相同。北海道人口的遗传变异较低可能是最近发生的瓶颈事件的结果。芬兰的高差异可能与最后冰川时代的大陆冰盖发育有关。在最后一个冰川时代，北欧被冰盖覆盖。因此，芬兰小链球菌可能已经撤退到几个Refugia，并在变暖后从几个地区返回芬兰，从而导致各种单倍型的遗传混合物。

项目成果

Morphological relationships among populations in the Sorex caecutiens/shinto group (Eulipotyphla, Soricidae) in East Asia, with description of a new subspecies from Cheju Island, Korea

东亚 Sorex caecutiens/神道类群（Eulipotyphla、Soricidae）种群之间的形态关系，以及来自韩国济州岛的一个新亚种的描述

• 发表时间: 2005
• 期刊: Mammalian Biology 70
• 作者: Ohdachi;S. D.
• 通讯作者: S. D.

動物地理の自然史. 分布と多様性の進化学

动物地理学的自然史。分布和多样性的演变。

• 发表时间: 2005
• 作者: Dubey;S.;N.Salamin;S.D.Ohdachi;P.Barriere;PVogel.;増田隆一
• 通讯作者: 増田隆一

Records of Sorex species (Soricidae) from Mt.Paektu, North Korea, with the first record of S.daphaenodon.

朝鲜白头山鳀鱼属（Soricidae）的记录，其中首次记录的是鳅鱼属（S.daphaenodon）。

• 发表时间: 2005
• 期刊: Eurasian Journal of Forest Research 8(2)
• 作者: Ohdachi;Satoshi D.
• 通讯作者: Satoshi D.

Population genetic structures of Sorex unguiculatus and S. caecutiens (Soricidae, Mammalia) in Hokkaido, based on microsatellite DNA polymorphism

基于微卫星DNA多态性的北海道Sorex unguiculatus和S. caecutiens（Soricidae，哺乳动物）种群遗传结构

• 发表时间: 2006
• 期刊: Ecological Research 21
• 作者: Naitoh;Y.
• 通讯作者: Y.

Natural history of biogeography. Evolution of distribution and biodiversity(in Japanese)

生物地理学的自然史。

• 发表时间: 2005
• 作者: Masuda R.;H.Abe(edition)
• 通讯作者: H.Abe(edition)