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Elucidation of genes involved in blue discoloration of Japanese radish root

Research Project

Project/Area Number 18K05632
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 39030:Horticultural science-related
Research InstitutionNational Agriculture and Food Research Organization

Principal Investigator

Nagata Masayasu  国立研究開発法人農業・食品産業技術総合研究機構, 食品研究部門, ユニット長 (60370574)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
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)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsダイコン青変症 / 網羅的遺伝子発現解析 / RNA-seq / インドールグルコシノレート代謝 / Raphanus sativus / グルコシノレート代謝 / 遺伝子
Outline of Final Research Achievements

Radish blue discoloration, in which the inside of radish turns blue within a few days after harvest. It has occurred nationwide, which has become a problem for producers and market participants. So far, we have identified the substance responsible for radish blue discoloration as 4-hydroxyglucobrassicin. In this study, we analyzed in detail the expression of metabolism-related genes of indole glucosinolate from tryptophan to 4-hydroxyglucobrassicin by RNA-seq method. As a result, there was a significant difference in the expression level of the CYP81F-type genes in the part where glucobrassicin branches into 4-hydroxyglucobrassicin and 1-hydroxyglucobrassicin between varieties that are prone to blue discoloration and those that are not.

Academic Significance and Societal Importance of the Research Achievements

ダイコン青変症は、流通中に発生する生理障害である。申請者らは、ダイコン青変症の原因物質が、4-ヒドロキシグルコブラシシン(4-OHGB)であることを世界に先駆けて明らかにした。本研究では、次世代シーケンサーによるRNA-seqの手法を用いて、トリプトファンから4-OHGBに至るインドールグルコシノレート代謝経路の遺伝子発現を検討することにより、グルコブラシシンから4-OHGBと1-ヒドロキシグルコブラシシンに分岐するステップがその主要因であることを明らかにした。これらの基礎的知見は、今後、青変症になりにくい新品種育成に利用できる。また、食品ロスの削減を通じて、SDGsの推進に貢献できる。

Report

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

    (5 results)

All 2021 2020 2019 2018

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (2 results) (of which Invited: 1 results) Book (2 results)

  • [Journal Article] Prediction and suppression of internal blue discoloration in roots of daikon, the Japanese radish (Raphanus sativus L.)2018

    • Author(s)
      Teranishi Katsunori、Nagata Masayasu
    • Journal Title

      Food Science & Nutrition

      Volume: 6 Issue: 8 Pages: 2134-2140

    • DOI

      10.1002/fsn3.774

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 収穫後の青果物における品質変化ならびにその制御に関する生化学的・分子生物学的研究2020

    • Author(s)
      永田雅靖
    • Organizer
      日本食品保蔵科学会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 次世代シーケンサーを用いたダイコン青変症原因遺伝子 の推定2019

    • Author(s)
      ○永田雅靖・寺西克倫
    • Organizer
      園芸学研究,18(別2),297(2019.9.15)
    • Related Report
      2019 Research-status Report
  • [Book] 園芸利用学(山内 直樹、今堀 義洋編)2021

    • Author(s)
      永田雅靖、泉秀実、立石亮、加藤雅也、濱渦康範、馬場正、鈴木康生ほか
    • Total Pages
      312
    • Publisher
      文永堂出版
    • ISBN
      9784830041426
    • Related Report
      2020 Annual Research Report
  • [Book] 青果物の鮮度評価・保持技術2019

    • Author(s)
      永田雅靖
    • Total Pages
      372
    • Publisher
      エヌ・ティー・エス,東京
    • ISBN
      9784860436216
    • Related Report
      2019 Research-status Report

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

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