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Molecular dissection of fruit internal tissue development

Research Project

Project/Area Number 19K23672
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0602:Agricultural and environmental biology and related fields
Research InstitutionTokyo University of Agriculture and Technology (2020)
University of Tsukuba (2019)

Principal Investigator

Shinozaki Yoshihito  東京農工大学, 学内共同利用施設等, 特任助教 (60841971)

Project Period (FY) 2019-08-30 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords果実発達 / トマト / ゲノム編集 / CRISPRスクリーニング / イメージング質量分析 / 果実形成
Outline of Research at the Start

本研究では,果実内部組織の発達を制御するメカニズムの解明を目的とし,トマト果実のゼリー部分など特定の果実内部組織で重要な役割を果たすと考えられる遺伝子および代謝物の解析を行う.遺伝子の機能解析にはゲノム編集技術,代謝物の分布解析にはイメージング質量分析を中心に用いる.得られる成果は,トマトを含む多肉性果実の胎座組織の発達や,ゼリーへの分化メカニズム解明に学術的に貢献するとともに,園芸生産上問題となっているゼリー発達異常の発生メカニズムの解明や,ゼリーの量や成分の遺伝的改良技術の開発につながることが期待される.

Outline of Final Research Achievements

The regulatory mechanisms for the development of fruit internal tissues have not been well understood. To unveil this, we analyzed genes and metabolites potentially associated with internal tissue development of tomato fruit, as a model material. A CRISPR screening for previously identified 20 candidate genes revealed that a TALE family transcription factor gene is involved in the development of fruit internal tissue. A mass spectrometry imaging analysis using a mutant showing deficient growth of fruit internal tissues suggested that malic acid accumulation is associated with the internal tissue development in tomato fruit.

Academic Significance and Societal Importance of the Research Achievements

果実は食生活・食文化において欠かすことのできない作物であり,ヒトの嗜好性や健康に寄与する様々な有用成分の供給源となっている.本研究では,様々な有用成分を多く蓄積することが知られるトマト果実内部のゼリー組織に着目し,その発達に関連した遺伝子や代謝産物を明らかにした.本研究の成果は,様々な用途に応じた果実構造のデザインや,果実成分の蓄積場所として特定組織量の増大を可能とする新たな分子育種技術の開発につながることが期待される.

Report

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

    (3 results)

All 2020 Other

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

  • [Int'l Joint Research] University of Bordeaux/INRAE(フランス)

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Fruit setting rewires central metabolism via gibberellin cascades2020

    • Author(s)
      Shinozaki Yoshihito et al.
    • Journal Title

      Proceedings of the National Academy of Sciences

      Volume: 117 Issue: 38 Pages: 23970-23981

    • DOI

      10.1073/pnas.2011859117

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] マルチオミクス解析を利用したトマト着果における糖代謝制御を担う遺伝子の同定2020

    • Author(s)
      篠崎良仁,江面健太郎,西田敬二,森一樹,久原哲,鈴木穣,榎元廣文,草野都,福島敦史,森哲哉,江面浩,有泉亨
    • Organizer
      日本育種学会
    • Related Report
      2020 Annual Research Report

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Published: 2019-09-03   Modified: 2022-01-27  

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