How many birds are there which originated from Japan but widespread to the continent?
| Project/Area Number |
18K06399
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 45030:Biodiversity and systematics-related
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| Research Institution | National Museum of Nature and Science, Tokyo |
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Principal Investigator |
Nishiumi Isao 独立行政法人国立科学博物館, 動物研究部, 研究主幹 (90290866)
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| Project Period (FY) |
2018-04-01 – 2021-03-31
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| Project Status |
Completed (Fiscal Year 2020)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 生物多様性 / 種多様性 / 種分化 / 種の起源地 / DNAバーコード / 鳥類 / 大陸島 / 日本列島 / 起源地 / ソース集団 / 遺伝的多様性 / 分子系統 / 系統地理 / ＤＮＡバーコード |
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| Outline of Final Research Achievements |
We have sequenced the DNA barcode regions of 1,778 samples from 245 Japanese breeding species of birds and registered them in database of the BOLD Systems. We analyzed the latest data and re-estimated the species of Japanese origin by comparing the phylogeny among closely related species or the intraspecific genetic diversity between the continent and Japan. As a result, the number of species suggested to be of Japanese origin increased by 8 to 48. Conversely, the number of species suggested to be of continental origin increased to 52, and the number of species with no difference in phylogenetic relationships or genetic diversity between the Japanese and continental populations increased to 48. Therefore, although we increased the number of species analyzed, it did not change our assessment that one-third to half of the Japanese species co-distributed in continent may have originated in Japan.
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| Academic Significance and Societal Importance of the Research Achievements |
「ガラパゴス化」という言葉が象徴するように、島での生物進化はその島以外では生きていけないような特殊な種を生み出すと一般には理解されている。ガラパゴス諸島のような海洋島では、それは確かにあてはまるが、日本列島のように地史的に大陸ともつながったことのある大陸島では必ずしもあてはまらない。現在では広く分布している鳥類種の中には日本列島で種分化し、日本列島を起源として大陸にまで分布を拡大した種も少なからずいることがDNAバーコードの分析の結果として示された。日本列島はアジア大陸の鳥の種多様性の起源地として重要な役割を果たしてきたことが示唆された。生物多様性の進化学的理解を進めたといえる。
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Report
(4 results)
Research Products
(25 results)
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[Journal Article] Great journey of Great Tits (Parus major group): Origin, diversification and historical demographics of a broadly distributed bird lineage2020
Author(s)
Song, G., R. Zhang, F. Machado-Stredel, P. Alstrom, U. S. Johansson, M. Irestedt, H. L. Mays JR., B. D. McKay, I. Nishiumi, Y. Cheng & Y. Qu
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Journal Title
Journal of Biogeography
Volume: 47
Issue: 7
Pages: 1585-1598
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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