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モデル植物を用いたアブラナ科自家不和合性の分子遺伝学的解析

Research Project

Project/Area Number 21880022
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Breeding science
Research InstitutionMie University

Principal Investigator

諏訪部 圭太  三重大学, 大学院・生物資源学研究科, 准教授 (50451612)

Project Period (FY) 2009 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥2,756,000 (Direct Cost: ¥2,120,000、Indirect Cost: ¥636,000)
Fiscal Year 2010: ¥1,313,000 (Direct Cost: ¥1,010,000、Indirect Cost: ¥303,000)
Fiscal Year 2009: ¥1,443,000 (Direct Cost: ¥1,110,000、Indirect Cost: ¥333,000)
Keywords自家不和合性 / アブラナ科 / シロイヌナズナ / 自他認識反応 / シグナル伝達 / 花粉コートタンパク質 / 突然変異 / 国際情報交換 / 花粉-柱頭認識反応 / モデル植物 / 遺伝地図 / 花粉因子 / 柱頭因子
Research Abstract

シロイヌナズナが有する機能喪失型SP11/SCRの変異を人工的に修復し、その正常機能型SP11/SCRをシロイヌナズナに遺伝子導入することで、自家不和合性シロイヌナズナを作出した。これは、シロイヌナズナは自家不和合性を失うことで他殖から自殖へと進化したことを裏付けており、その崩壊のきっかけは自家不和合性雄性認識因子であるSP11/SCRの変異に起因することを明らかにした。上記変異は、解析に用いた大部分(約95%)のヨーロッパ系シロイヌナズナエコタイプが有しており、その分布はヨーロッパ各地に自生するエコタイプの地理的分布パターンに一致していた。またその変異が生じた時期は、現在から約41万年以内であり、交配相手が少なかったと考えられる氷河期と一致することを明らかにした。
この結果は、ダーウィンが「植物の受精(1867年)」で唱えた「交配相手が少ない条件下では自殖が繁殖に有利な性質となる」という説を裏付ける結果である。Brassica属については、昨年度実施したアブラナ科自家不和合性関連因子(SP11,SRK,MLPK,ARC1,THL)の国際共通連鎖地図へのマッピングに加え、保有するB.rapa自家和合性突然変異体の解析を行うことで、新規自家不和合性関連因子の探索を行った。独立2系統(TSC4,TSC28)の解析により、両系統とも上記自家不和合性関連因子はすべて正常に機能しており、自家和合性の原因は新規因子によることを明らかにした。さらにそれら原因遺伝子は、それぞれA1,A3連鎖群に座乗し、上記関連因子とは独立することを遺伝学的に明らかにした。

Report

(2 results)
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (26 results)

All 2010 2009

All Journal Article (6 results) (of which Peer Reviewed: 5 results) Presentation (20 results)

  • [Journal Article] Evolution of self-compatibility in Arabidopsis by a mutation in the male specific gene.2010

    • Author(s)
      Takashi Tsuchimatsu, et al.
    • Journal Title

      Nature

      Volume: 464 Pages: 1342-1346

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] UDP-glucose pyrophosphorylase is rate limiting in vegetative and reproductive phases in Arabidopsis thaliana.2010

    • Author(s)
      Jong-In Park, et al.
    • Journal Title

      Plant & Cell Physiology

      Volume: 51 Pages: 981-996

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Novel self-compatible lines of Brassica rapa L. isolated from the Japanese bulk-populations.2010

    • Author(s)
      Sachiyo Isokawa, et al.
    • Journal Title

      Genes & Genetic Systems

      Volume: 85 Pages: 87-96

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Morphological and gene expression analysis under cool temperature conditions in rice anther development.2010

    • Author(s)
      Susumu Oda, et al.
    • Journal Title

      Genes & Genetic Systems

      Volume: 85 Pages: 107-120

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Novel self-compatible lines of Brassica rapa L. isolated from the Japanese bulk-populations2010

    • Author(s)
      Isokawa, et al.
    • Journal Title

      Genes & Genetic Systems (印刷中)

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article]2009

    • Author(s)
      金子芙美, ら
    • Journal Title

      温度と生命システムの相関学(東海大学出版会)

      Pages: 176-191

    • Related Report
      2009 Annual Research Report
  • [Presentation] The UGPase is essential for plant growth at vegetative and reproductive stages in Arabidopsis thaliana.2010

    • Author(s)
      Keisuke Sudo, et al.
    • Organizer
      21th International Conference on Arabidopsis Research
    • Place of Presentation
      パシフィコ横浜(神奈川県)
    • Related Report
      2010 Annual Research Report
  • [Presentation] Novel self-compatible lines of Brassica rapa isolated from traditional and commercial populations.2010

    • Author(s)
      Masaaki Osaka, et al.
    • Organizer
      21th International Conference on Arabidopsis Research
    • Place of Presentation
      パシフィコ横浜(神奈川県)
    • Related Report
      2010 Annual Research Report
  • [Presentation] Alteration of morphology and gene expression under cool temperature conditions on anther development of rice.2010

    • Author(s)
      Susumu Oda, et al.
    • Organizer
      21th International Conference on Arabidopsis Research
    • Place of Presentation
      パシフィコ横浜(神奈川県)
    • Related Report
      2010 Annual Research Report
  • [Presentation] Evolution of self-compatibility in Arabidopsis by a mutation in the male specificity gene.2010

    • Author(s)
      Kentaro Shimizu, et al.
    • Organizer
      XXI International Congress on Sexual Plant Reproduction
    • Place of Presentation
      University of Bristol (UK)
    • Related Report
      2010 Annual Research Report
  • [Presentation] Identification and mapping of novel self-incompatibility genes in Brassica rapa L.2010

    • Author(s)
      Masaaki Osaka, et al.
    • Organizer
      XXI International Congress on Sexual Plant Reproduction
    • Place of Presentation
      University of Bristol (UK)
    • Related Report
      2010 Annual Research Report
  • [Presentation] UDP-glucose pyrophosphorylase is rate limiting in vegetative and reproductive phases in Arabidopsis thaliana.2010

    • Author(s)
      Keisuke Sudo, et al.
    • Organizer
      XXI International Congress on Sexual Plant Reproduction
    • Place of Presentation
      University of Bristol (UK)
    • Related Report
      2010 Annual Research Report
  • [Presentation] アブラナ科自家和合変異系統の分子遺伝学的解析と連鎖地図へのマッピング2010

    • Author(s)
      大坂正明, ら
    • Organizer
      日本育種学会第118回講演会
    • Place of Presentation
      秋田県立大学(秋田県)
    • Related Report
      2010 Annual Research Report
  • [Presentation] イネの遺伝子発現ネットワーク解析とデータベース構築2010

    • Author(s)
      濱田和輝, ら
    • Organizer
      日本育種学会第118回講演会
    • Place of Presentation
      秋田県立大学(秋田県)
    • Related Report
      2010 Annual Research Report
  • [Presentation] ハクサイ根こぶ病抵抗性遺伝子Crr1のマップベースクローニング2010

    • Author(s)
      畠山勝徳, ら
    • Organizer
      日本育種学会第118回講演会
    • Place of Presentation
      秋田県立大学(秋田県)
    • Related Report
      2010 Annual Research Report
  • [Presentation] Gene expression network construction in rice2010

    • Author(s)
      浜田, et al.
    • Organizer
      Plant and Animal Genome Conference XVIII
    • Place of Presentation
      San Diego, USA
    • Related Report
      2009 Annual Research Report
  • [Presentation] Evolution of breeding systems in Arabidopsis relatives2010

    • Author(s)
      Tsuchimatsu, et al.
    • Organizer
      International Symposium of Cell-Cell Communication in Plant Reproduction
    • Place of Presentation
      Nara, Japan
    • Related Report
      2009 Annual Research Report
  • [Presentation] A comprehensive analysis of small RNAs in rice male reproductive organs2010

    • Author(s)
      Fujioka, et al.
    • Organizer
      International Symposium of Cell-Cell Communication in Plant Reproduction
    • Place of Presentation
      Nara, Japan
    • Related Report
      2009 Annual Research Report
  • [Presentation] The UGPases are important players in Arabidopsis thaliana2010

    • Author(s)
      須藤, et al.
    • Organizer
      International Symposium of Cell-Cell Communication in Plant Reproduction
    • Place of Presentation
      Nara, Japan
    • Related Report
      2009 Annual Research Report
  • [Presentation] Morphological and molecular basis of low temperature tolerance in rice anther development2010

    • Author(s)
      小田, et al.
    • Organizer
      International Symposium of Cell-Cell Communication in Plant Reproduction
    • Place of Presentation
      Nara, Japan
    • Related Report
      2009 Annual Research Report
  • [Presentation] Novel self-compatible lines of Brassica rapa L isolated from the Japanese bulk-populations2010

    • Author(s)
      Osaka, et al.
    • Organizer
      International Symposium of Cell-Cell Communication in Plant Reproduction
    • Place of Presentation
      Nara, Japan
    • Related Report
      2009 Annual Research Report
  • [Presentation] Database construction of gene expression networks in rice2010

    • Author(s)
      浜田, et al.
    • Organizer
      International Symposium of Cell-Cell Communication in Plant Reproduction
    • Place of Presentation
      Nara, Japan
    • Related Report
      2009 Annual Research Report
  • [Presentation] イネの遺伝子発現ネットワーク構築2010

    • Author(s)
      浜田, ら
    • Organizer
      日本育種学会第117会講演会
    • Place of Presentation
      京都大学 (京都府)
    • Related Report
      2009 Annual Research Report
  • [Presentation] シロイヌナズナの糖代謝における UGPase の役割2010

    • Author(s)
      須藤, ら
    • Organizer
      日本植物生理学会第51回年会
    • Place of Presentation
      熊本大学 (熊本県)
    • Related Report
      2009 Annual Research Report
  • [Presentation] Genetic characterization of self-compatible mutants in Brassica rapa2009

    • Author(s)
      Suwabe, et al.
    • Organizer
      Plant Biology 2009
    • Place of Presentation
      Hawaii, USA
    • Related Report
      2009 Annual Research Report
  • [Presentation] イネの低温ストレス耐性に関わる遺伝子群の網羅的解析2009

    • Author(s)
      小田, ら
    • Organizer
      日本分子生物学会第32回年会
    • Place of Presentation
      パシフィコ横浜 (神奈川県)
    • Related Report
      2009 Annual Research Report

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Published: 2009-04-01   Modified: 2016-04-21  

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