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Study on inbreeding degeneration in Japanese pear by using S2 progeny originated from Osa Nijisseiki having self-compatibility

Research Project

Project/Area Number 23658023
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Horticulture/Landscape architecture
Research InstitutionIbaraki University

Principal Investigator

INOUE Eiichi  茨城大学, 農学部, 准教授 (90292482)

Research Collaborator KASUMI Masakazu  茨城県農業総合センター, 生物工学研究所, 室長(協力時)
GONAI Takeru  茨城県農業総合センター, 生物工学研究所, 主任研究員(協力時)
Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsニホンナシ / 自家和合性 / SSRマーカー / 近交弱勢 / ホモ化 / 劣性形質 / 自殖系統 / ゲノム / 自殖弱勢 / 相転換 / 自殖 / なし中間母本農1号 / S2世代 / おさ二十世紀
Research Abstract

Almost all fruits trees including Japanese pear have self-incompatibility. In this research, to study inbreeding degeneration, we produced self-pollinated progeny of Japanese pear by using self-compatible cultivar Osa Nijisseiki. The negative correlation observed between the homo-zygosity and plant height in S2 individuals reflected a negative effect of the homogeneity on their growth. This S2 progeny may become valuable material for the genomic research about the inbreeding degeneration in Japanese pear.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (10 results)

All 2013 2011 Other

All Presentation (9 results) Remarks (1 results)

  • [Presentation] ニホンナシ果実のみつ症発生過程における組織学的観察2013

    • Author(s)
      小川達也,井上栄一, 他
    • Organizer
      園芸学会平成24年度春季大会
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2013-03-29
    • Related Report
      2013 Final Research Report
  • [Presentation] QTL controlling dots development of fruit skin in Japanese pear2013

    • Author(s)
      Eiichi Inoue
    • Organizer
      Fruits and Roots: : a celebration and forward look
    • Place of Presentation
      イーストモーリング,(連合王国)
    • Related Report
      2013 Final Research Report
  • [Presentation] S_2 progeny of Japanese pear (Pyrus pyrifolia Nakai)'Osa Nijisseiki' having self-compatibility and their homozygosity estimated by SSR analysis2013

    • Author(s)
      Eiichi Inoue
    • Organizer
      2013 American Society for Horticultural Science
    • Place of Presentation
      パームデザート(アメリカ)
    • Related Report
      2013 Final Research Report
  • [Presentation] QTL controlling dots development of fruit skin in Japanese pear2013

    • Author(s)
      Eiichi Inoue
    • Organizer
      Fruits and Roots: a celebration and forward look
    • Place of Presentation
      East Malling Research, Kent, UK
    • Related Report
      2013 Annual Research Report
  • [Presentation] S2 progeny of Japanese pear (Pyrus pyrifolia Nakai) ‘Osa Nijisseiki’ having self-compatibility and their homozygosity estimated by SSR analysis2013

    • Author(s)
      Eiichi Inoue
    • Organizer
      ASHS Annual Conference, 2013
    • Place of Presentation
      Palm Desert, California, USA
    • Related Report
      2013 Annual Research Report
  • [Presentation] S2 progeny of Japanese pear (Pyrus pyrifolia Nakai) ‘Osa Nijisseiki’ having self-compatibility and their homozygosity estimated by SSR analysis2013

    • Author(s)
      Eiichi Inoue
    • Organizer
      American Society for Horticultural Science
    • Place of Presentation
      Palm Desert, California, USA
    • Related Report
      2012 Research-status Report
  • [Presentation] ニホンナシにおける果皮色形質を制御するQTL の検出2011

    • Author(s)
      井上栄一, 他
    • Organizer
      園芸学会平成23年度秋季大会
    • Place of Presentation
      岡山大学
    • Year and Date
      2011-09-24
    • Related Report
      2013 Final Research Report
  • [Presentation] ニホンナシにおける果皮色形質を制御するQTLの検出

    • Author(s)
      井上栄一・西井瑞穂・山本俊哉・寺上伸吾
    • Organizer
      園芸学会平成23年度秋季大会
    • Place of Presentation
      岡山大学
    • Related Report
      2011 Research-status Report
  • [Presentation] ニホンナシ果実のみつ症発生過程における組織学的観察

    • Author(s)
      小川達也・大森裕樹・本間貴司・喜多晃一・高津康正・東尾久雄・井上栄一
    • Organizer
      園芸学会平成24年度春季大会
    • Place of Presentation
      大阪府立大学
    • Related Report
      2011 Research-status Report
  • [Remarks] シンポジウム開催『次世代シークエンサーとDNA 塩基配列情報の農業研究への展開-果樹ゲノム研究から品種識別まで-』,茨城大学農学部研究推進委員会,2010年2月26日,茨城大学農学部

    • Related Report
      2013 Final Research Report

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Published: 2011-08-05   Modified: 2019-07-29  

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