1999 Fiscal Year Final Research Report Summary
Genetic interaction between Russian and Japanese small mammals.
| Project/Area Number |
09041139
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| Research Category |
Grant-in-Aid for Scientific Research (C).
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
系統・分類
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| Research Institution | HOKKAIDO UNIVERSITY |
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Principal Investigator |
SUZUKI Hitoshi Hokkaido Univ., Grad. School of Environ. Earth Sci., Asso. Pro., 大学院・地球環境科学研究科, 助教授 (40179239)
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| Co-Investigator(Kenkyū-buntansha) |
SAKAZUMI Mitsuru Niigata Univ., Fac. Of Sci., Prof., 理学部, 教授 (40175360)
TSUCHIYA Kimiyuki Miyazaki Med. Coll., Ex. Animal Cent., Asso. Prof., 医学部, 助教授 (30155402)
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| Project Period (FY) |
1997 – 1999
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| Keywords | North Eurasia / Molecular phylogeny / Biogeography / Quaaterrary / Russian small mammals / DNA marker |
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| Research Abstract |
The fauna of Japanese small mammals is thought to be complex because frequent migration events might have occurred during the last several million years from three different routes through Sakhalin, the Korean Peninsula, and Taiwan. Here we examined the Sakhalin route to elucidate the evolutionary history of the fauna of small mammals of Hokkaido, using molecular phylogenetic tools including mitochondrial and nuclear DNAs. We observed considerable extent of difference in the levels of genetic endemism and geographic variation among the species examined. Hokkaido's small rodents possessed relatively low species endemism. The levels were relatively, high in Clethrionomys rex and low in Apodemus peninsulae. The levels of geographic variation were high in Clethrionomys rufocanus and C. rutilus and low in A. peninsulae and C. rex. Our data imply that Hokkaido had played an important role in increasing the levels of the biodiversity in East Asia during the past one or two million years. The patterns of speciation and geographic variation of small mammals in East Asia were considered to be affected by the Quaternary environmental changes, such as expansion of permafrost and emergence of land bridges
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[Publications] Suzuki. H., Minato, S., Sakurai, S., Tsuchiya, K., Fokin, I. M.: "Phylogenetic position and geographic differentiation of the Japanese dormouse, Glirulus japonicus, revealed by variations among rDNA, mtDNA and the Sry gene."Zool. Sci.. 14. 167-173 (1997)
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「研究成果報告書概要(欧文)」より
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[Publications] Chelomina, G.N., Suzuki. H., Tsuchiya, K., Moriwald, K., Lyapunova, E. A., and Verontsov, N.N.: "Sequencing of the mtDNA cytochrome b gene and reconstruction of the matemal relationships of wood and field mice of the genus Apodemus (Muridae Rodentia)."Russian J. Genetics. 34. 529-539 (1998)
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「研究成果報告書概要(欧文)」より
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[Publications] Suzuki, H., Iwasa, M., Harada. M., Wakana, S., Sakaizumi, M., Han. S-H., Kitahara, E., Kimura, Y, Kartavtseva, I., Tsuchiya, K.: "Molecular phylogeny of red-backed voles in Far East Asia based on variation in ribosomal and mitochondrial DNA."J. Mammalogy. 80. 512-521 (1999)
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「研究成果報告書概要(欧文)」より
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[Publications] Hosoda, T., Suzuki, H., Iwasa. M. A., Hayashida, M., Watanabe, S., Tatara, M., and Tsuchiya. K.: "Genetic relationships within and between the Japanese marten Martes melampus and the sable M. zibelliua, based on variation of mitochondrial DNA and nuclear ribosomal DNA."Mabamal Study. 24. 25-33 (1999)
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「研究成果報告書概要(欧文)」より
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[Publications] Tsuchiya, K., Suzuki, H., Shinohara. A., Harada, M., Wakana, S., Sakaizumi, M., Han, S-H., Kryukov, A.P.: "Molecular phylogeny of East Asian moles inferred from the sequence variation of the mitochondrial cytochrome b gene."Gene Genet. Syst.. 72(in press).
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「研究成果報告書概要(欧文)」より
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