Study on changes of diversity of brown bears in central and southern Eurasia and origin of three lineages of brown bears in Hokkaido
| Project/Area Number |
15H04410
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Biodiversity/Systematics
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| Research Institution | Hokkaido University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
大舘 智志 北海道大学, 低温科学研究所, 助教 (60292041)
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| Project Period (FY) |
2015-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2018: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2016: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2015: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
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| Keywords | ヒグマ / ユーラシア / 多様性 / 起源 / 系統地理学 / 系統地理 |
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| Outline of Final Research Achievements |
The analysis of Y chromosomal DNA showed the genetic differentiation between the Hokkaido population and the continental populations of brown bears. But, the paternal genetic difference among local populations within Hokkaido was small. This could have resulted from wider range of males than females, and was in contrast to the triple structure formed by maternally inherited mitochondrial DNA. In addition, analysis of ancient bear bones clarified mitochondrial DNA haplogroups of of brown bears in Bulgaria and Sakhalin, and discussed the zoogeographical history
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| Academic Significance and Societal Importance of the Research Achievements |
ヒグマは森林生態系の頂点に立つ食肉類であり，その遺伝的多様性，分子系統ならびに進化的起源を明らかにすることは，生物多様性や生態系の保全を考える上で，重要な生物学的情報をもたらす。さらに，本研究はロシアおよびブルガリアとの国際共同研究であり，大陸レベルでのヒグマの動物地理学的歴史および北海道ヒグマの三重構造の形成過程を解明することに貢献するものである。従来の母系遺伝子ミトコンドリアDNAのデータに加え，父系遺伝子Y染色体DNAのデータを新しく加え，北海道ヒグマの独自性をさらに示した。
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Report
(5 results)
Research Products
(21 results)
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[Journal Article] Paternal phylogeographic structure of the brown bear (Ursus arctos) in northeastern Asia and the effect of male-mediated gene flow to insular populations2017
Author(s)
Hirata, D., Mano, T., Abramov, A.V., Baryshnikov, G.F., Kosintsev, P.A., Murata, K., and Masuda, R.
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Journal Title
Zoological Letters
Volume: 3
Issue: 1
Pages: 21-21
DOI
NAID
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Book] 日本の食肉類2018
Author(s)
増田 隆一
Total Pages
320
Publisher
東京大学出版会
ISBN
9784130602372
Related Report
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