Prediction model of flowering-time based on nutrient conditions
| Project/Area Number |
18K14364
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 38010:Plant nutrition and soil science-related
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| Research Institution | National Agriculture and Food Research Organization |
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Principal Investigator |
Tanaka Nobuhiro 国立研究開発法人農業・食品産業技術総合研究機構, 次世代作物開発研究センター, 研究員 (60646230)
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| Project Period (FY) |
2018-04-01 – 2021-03-31
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| Project Status |
Discontinued (Fiscal Year 2020)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 栄養開花 / 遺伝子同定 / 窒素 / GWAS / 開花制御 / イネ / 開花 / 栄養欠乏 / RNA-seq |
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| Outline of Final Research Achievements |
Under low nitrogen condition, I cultivated several mutants of flowering genes and investigated their flowering time. Based on their flowering time, I concluded that downstream gene of florigen was related to [nutrient-flowering]. Expression analysis under different nutrient conditions also supported this result.
Next, I tried to isolate novel genes related to nutrient-flowering using GWAS. I identified one gene, which regulates nitrogen metabolism.
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| Academic Significance and Societal Importance of the Research Achievements |
栄養開花の制御機構を明らかにすることで、土壌の栄養状態に開花期が影響を受けにくいrobustな作物の作出を目指している。加えて、野菜類などで多用されているハイブリッド育種とも呼ばれる、F1種子を用いた農業生産では、F1種子の採取のための交配が必須である。その際に用いる母本品種が栄養状態によって開花期が影響を受けにくいことは非常に有用である。本研究で栄養開花の制御機構を明らかにすることで、ハイブリッド育種の効率化も目指している。
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Report
(3 results)
Research Products
(7 results)
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[Journal Article] Whole-genome sequencing of the NARO World Rice Core Collection (WRC) as the basis for diversity and association studies2020
Author(s)
Tanaka N, Shenton M, Kawahara Y, Kumagai M, Sakai H, Kanamori H, Yonemaru J, Fukuoka S, Sugimoto K, Ishimoto M, Wu J, Ebana K
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Journal Title
Plant Cell Physiol.
Volume: Epub ahead of print
Issue: 5
Pages: 922-932
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] A rice PHD-finger protein OsTITANIA, is a growth regulator that functions through elevating expression of transporter genes for multiple metals.2018
Author(s)
Tanaka, N., Uraguchi, S., Kajikawa, M., Saito, A., Ohmori, Y., Fujiwara, T.
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Journal Title
Plant Journal
Volume: 96
Issue: 5
Pages: 997-1006
DOI
Related Report
Peer Reviewed
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