| Co-Investigator(Kenkyū-buntansha) |
遠藤 俊徳 北海道大学, 情報科学研究院, 教授 (00323692)
坂井 寛章 国立研究開発法人農業・食品産業技術総合研究機構, 高度分析研究センター, ユニット長 (20455322)
増田 隆一 北海道大学, 理学研究院, 教授 (80192748)
伊藤 剛 国立研究開発法人農業・食品産業技術総合研究機構, 高度解析センター, チーム長 (80356469)
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| Budget Amount *help |
¥98,280,000 (Direct Cost: ¥75,600,000、Indirect Cost: ¥22,680,000)
Fiscal Year 2022: ¥19,240,000 (Direct Cost: ¥14,800,000、Indirect Cost: ¥4,440,000)
Fiscal Year 2021: ¥19,240,000 (Direct Cost: ¥14,800,000、Indirect Cost: ¥4,440,000)
Fiscal Year 2020: ¥19,240,000 (Direct Cost: ¥14,800,000、Indirect Cost: ¥4,440,000)
Fiscal Year 2019: ¥19,240,000 (Direct Cost: ¥14,800,000、Indirect Cost: ¥4,440,000)
Fiscal Year 2018: ¥21,320,000 (Direct Cost: ¥16,400,000、Indirect Cost: ¥4,920,000)
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| Outline of Final Research Achievements |
Genomic analysis of commensal small mammals, specifically focusing on the Japanese house mouse, has provided valuable insights into the historical expansion of rice and millet cultivation in mainland Asia over the past 10,000 years. Based on extensive genomic data analysis of rice, it was possible to infer the population structure within the Japanese archipelago, genetic relationships in the East Asian region, and even trace the origins of ancient rice. Molecular phylogenetic network analysis using NGS data from gourd samples proposed hypotheses regarding the geographic routes of gourd dispersion in prehistoric times. Analyzing the population structure of Hokkaido brown bears has yielded two significant findings: a distinctive geographic structure that deviates from previously reported mitochondrial DNA patterns, and the potential occurrence of gene flow from polar bears into the populations of Hokkaido and Etorofu Island.
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