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Prediction model of flowering-time based on nutrient conditions

Research Project

Project/Area Number 18K14364
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 38010:Plant nutrition and soil science-related
Research InstitutionNational Agriculture and Food Research Organization

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)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Discontinued (Fiscal Year 2020)
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)
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
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.

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。

Report

(3 results)
  • 2020 Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Research-status Report
  • Research Products

    (7 results)

All 2020 2019 2018

All Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (3 results)

  • [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
    • Journal Title

      Plant Cell Physiol.

      Volume: Epub ahead of print Issue: 5 Pages: 922-932

    • DOI

      10.1093/pcp/pcaa019

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Evidence for rice Heading date 16 contribution to yield increase under low-nutrient conditions2019

    • Author(s)
      Tanaka Nobuhiro、Yoshida Saki、Takagi Hiroki、Terauchi Ryohei、Shimizu Akifumi、Fujiwara Toru
    • Journal Title

      Soil Science and Plant Nutrition

      Volume: 65 Issue: 6 Pages: 589-597

    • DOI

      10.1080/00380768.2019.1647081

    • NAID

      210000157373

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Boron Toxicity Reduces Water Transport from Root to Shoot in Arabidopsis Plants. Evidence for a Reduced Transpiration Rate and Expression of Major PIP Aquaporin Genes2018

    • Author(s)
      Macho-Rivero MA, Herrera-Rodríguez MB, Brejcha R, Schäffner AR, Tanaka N, Fujiwara T, González-Fontes A, Camacho-Cristóbal JJ
    • Journal Title

      Plant & Cell Physiology

      Volume: 59 Issue: 4 Pages: 836-844

    • DOI

      10.1093/pcp/pcy026

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [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.
    • Journal Title

      Plant Journal

      Volume: 96 Issue: 5 Pages: 997-1006

    • DOI

      10.1111/tpj.14085

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] 新たなイネコアコレクションを用いた ゲノムワイド関連解析2019

    • Author(s)
      田中伸裕、Matthew Shenton, 川原善浩、杉本和彦、石本政男、江花薫子
    • Organizer
      日本育種学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] イネコアコレクションにおけるイオノーム形質の多様性解析2019

    • Author(s)
      田中伸裕、Matthew Shenton, 川原善浩、杉本和彦、石本政男、江花薫子
    • Organizer
      日本土壌肥料学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 窒素欠乏条件はイネの開花期を促進する2018

    • Author(s)
      田中伸裕 藤原徹
    • Organizer
      日本土壌肥料学会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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