| Project/Area Number |
15K07280
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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 |
Crop production science
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| Research Institution | National Agriculture and Food Research Organization |
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Principal Investigator |
TERAO Tomio 国立研究開発法人農業・食品産業技術総合研究機構, 中央農業研究センター, グループ長 (80355578)
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| Co-Investigator(Renkei-kenkyūsha) |
HIROSE Tatsuro 国立研究開発法人農業・食品産業技術総合研究機構, 中央農業研究センター, 上級研究員 (90355579)
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| Project Period (FY) |
2015-10-21 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 高温登熟 / QTL / 白未熟粒 / イネ(Oryza sativa L.) / 高温耐性 / イネ（Oryza sativa L.) |
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| Outline of Final Research Achievements |
Identification of the causing gene for the QTL on chromosome 3, qTW3-2, that is responsible for reducing the occurrence of white immature grains under high-temperature ripening conditions in the Habataki allele was performed. Complementation experiments were also performed using RNAi constructs of candidate genes, which were not completed until now. However, there is a new gene that is inserted only in Habataki within the candidate region. The expression of this gene at the immature stage of grains occurred only under high temperature ripening, but not under normal temperature ripening, only in the Habataki allele segregant. Therefore, it is highly possible that the expression of this new gene is working to suppress the occurrence of white immature grains under high-temperature ripening.
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