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A study on major genes controlling pungency in Capsicum bio-resource and its application for pepper breeding

Research Project

Project/Area Number 25892020
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Horticultural science
Research InstitutionOkayama University

Principal Investigator

TANAKA Yoshiyuki  岡山大学, その他の研究科, 助教 (20704480)

Co-Investigator(Renkei-kenkyūsha) YOSHIDA Yuichi  岡山大学, 環境生命科学研究科, 教授 (00141474)
GOTO Tanjuro  岡山大学, 環境生命科学研究科, 教授 (40195938)
YASUBA Kenichiro  岡山大学, 環境生命科学研究科, 准教授 (60343977)
Project Period (FY) 2013-08-30 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsトウガラシ / カプサイシン / 遺伝資源 / カプサイシノイド
Outline of Final Research Achievements

The pungent component in Capsicum fruits is capsaicinoid. The understanding of the controlling capsaicinoid biosynthesis is important to allow the breeding and improvement of peppers. The aim of this study was to identify major genes controlling pungency in Capsicum. In this study, we identified non-functional alleles of putative aminotransferase (pAMT) as the main and most frequent gene controlling low pungency in C. chinense. pAMT catalyzes the formation of precursor in the capsaicinoid biosynthetic pathway. In addition, we found a non-pungent C. baccatum accession. It will be useful for future breeding of sweet peppers.

Report

(3 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Annual Research Report
  • Research Products

    (5 results)

All 2015 2014 Other

All Presentation (5 results)

  • [Presentation] トウガラシCapsicum baccatum遺伝資源における低辛味素材の探索とその特性評価2015

    • Author(s)
      原一仁・田中義行・後藤丹十郎・吉田裕一・安場健一郎
    • Organizer
      平成27年度園芸学会春季大会
    • Place of Presentation
      千葉大学
    • Year and Date
      2015-03-28 – 2015-03-29
    • Related Report
      2014 Annual Research Report
  • [Presentation] 低辛味トウガラシ(Capsicum chinense)におけるp-amt機能欠損アリルの系統解析2015

    • Author(s)
      田中義行・園山知美・村賀湧次・小枝壮太・後藤丹十郎・吉田裕一・安場健一郎
    • Organizer
      平成27年度園芸学会春季大会
    • Place of Presentation
      千葉大学
    • Year and Date
      2015-03-28 – 2015-03-29
    • Related Report
      2014 Annual Research Report
  • [Presentation] 低辛味トウガラシ(Capsicum chinense)におけるp-amt機能欠損アリルの分類2014

    • Author(s)
      田中義行・園山知美・小枝壮太・安場健一郎・後藤丹十郎・吉田裕一
    • Organizer
      平成26年度園芸学会秋季大会
    • Place of Presentation
      佐賀大学
    • Year and Date
      2014-09-27 – 2014-09-29
    • Related Report
      2014 Annual Research Report
  • [Presentation] 南米原産のトウガラシ Capsicum baccatumにおける果実形態および辛味性の評価2014

    • Author(s)
      原一仁・田中義行・安場健一郎・後藤丹十郎・ 吉田裕一
    • Organizer
      平成26年度園芸学会春季大会
    • Place of Presentation
      筑波大学
    • Related Report
      2013 Annual Research Report
  • [Presentation] Characterization of pepper varieties in Capsicum baccatum.

    • Author(s)
      Yoshiyuki Tanaka
    • Organizer
      Symposium on Plant Genetic Resources in East Asia
    • Place of Presentation
      岡山大学
    • Related Report
      2013 Annual Research Report

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Published: 2013-09-12   Modified: 2019-07-29  

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