Comparative phylogeography of five salmonid fishes in Japan inferred from mitochondrial DNA and nuclear DNA markers
| Project/Area Number |
16K07884
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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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| Research Field |
Aquatic life science
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| Research Institution | Fisheries Research and Education Agency |
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Principal Investigator |
Yamamoto Shoichiro 国立研究開発法人水産研究・教育機構, 水研機構(横浜), 主幹研究員 (20392897)
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| Co-Investigator(Kenkyū-buntansha) |
佐藤 俊平 国立研究開発法人水産研究・教育機構, 水研機構(札幌), グループ長 (70425461)
森田 健太郎 国立研究開発法人水産研究・教育機構, 水研機構(札幌), 主任研究員 (30373468)
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| Project Period (FY) |
2016-04-01 – 2021-03-31
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| Project Status |
Completed (Fiscal Year 2020)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Keywords | サケ科魚類 / 系統地理 / イワナ / オショロコマ / サクラマス / サケ / カラフトマス / 系統地理分析 / ミトコンドリアDNA / 比較系統地理 / マイクロサテライトDNA / 一塩基多型 |
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| Outline of Final Research Achievements |
Genetic characteristics of five salmonid fishes (white-spotted charr, Dolly Varden species-complex, masu salmon, chum salmon, pink salmon) were examined using mitochondrial DNA and nuclear DNA (microsatellite DNA or SNP) markers. Phylogeographic and phylogenetic analyses using the large DNA data set revealed the population genetic structure, hybrid zone structure, genetic diversity, and the evolutionary and demographic history of each species. Our study also have important implications for the genetic management and long-term conservation of Japanese salmonid fishes.
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| Academic Significance and Societal Importance of the Research Achievements |
本研究課題では、分布域を網羅する大規模な遺伝子データセットを通して、各種がもつ集団構造の特徴、系統群の地理的分布や交雑帯の特定、遺伝的多様性などを明らかにし、それらを基にサケ科魚類各種の系統地理パターン、分布域形成プロセスに新しい考察を加えた。本研究で得られた成果は、淡水魚類の進化史の理解に役立つだけでなく、例えば在来・非在来個体の判別や保全上重要な集団・地域の特定など、サケ科魚類集団の遺伝保全や増殖を図る上で重要な貢献をもたらすものと期待される。
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Report
(6 results)
Research Products
(21 results)
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[Journal Article] Introgressive Hybridization between Southern Asian Dolly Varden, Salvelinus curilus, and Northern Dolly Varden, S. malma malma, on Sakhalin Island2021
Author(s)
S Yamamoto, K Morita, G Sahashi, K Maekawa, A Oleinik, E Bondar, V Brykov
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Journal Title
Russian Journal of Genetics
Volume: 57
Issue: 3
Pages: 361-370
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Phylogeography of a salmonid fish, masu salmon Oncorhynchus masou subspecies‐complex, with disjunct distributions across the temperate northern Pacific2020
Author(s)
Yamamoto, S., Morita, K., Kikko, T., Kawamura, K., Sato, S. & Gwo, J.C.
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Journal Title
Freshwater Biology
Volume: 65
Issue: 4
Pages: 698-715
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Presentation] Phylogeography and population genetic structure of masu salmon Oncorhynchus masou subspecies-complex inferred from mitochondrial and microsatellite DNA markers2019
Author(s)
Yamamoto, S., Morita, K., Kikko, T., Kawamura, K., Sato, S. & Gwo, J.C.
Organizer
Advances in the Population Ecology of Stream Salmonids V
Related Report
Int'l Joint Research
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