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Development of wheat lines that produce apomictic embryos

Research Project

Project/Area Number 19H02935
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 39010:Science in plant genetics and breeding-related
Research InstitutionKobe University (2020-2023)
Fukui Prefectural University (2019)

Principal Investigator

Matsuoka Yoshihiro  神戸大学, 農学研究科, 教授 (80264688)

Co-Investigator(Kenkyū-buntansha) 岡田 萌子  新潟大学, 農学部, 助教 (20913289)
FAWCETT JEFFREY  国立研究開発法人理化学研究所, 数理創造プログラム, 上級研究員 (50727394)
宅野 将平  総合研究大学院大学, 先導科学研究科, 助教 (20547294)
Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000)
Fiscal Year 2023: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2022: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2021: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Keywordsヘテロシス固定 / 2n配偶子 / 単為生殖 / ヘテロシス / 雑種強勢
Outline of Research at the Start

雑種作物は、生産性や病気・環境ストレスに対する抵抗性/耐性において、両親よりも優れた性質を示すことがあります。この現象は、雑種強勢と呼ばれます。食糧生産を巡る状況が厳しさを増す今日、「いかにして雑種強勢が世代を超えて維持される永久ハイブリッド品種を作るか」は育種科学の核心的課題です。本研究は、遺伝資源を利用して、永久ハイブリッド品種の作出に役立つ「クローン胚を形成するコムギ」を作出し、この現象に関係する遺伝子を同定することを目的として実施します。

Outline of Final Research Achievements

The objectives of this study were to cross wheat lines to produce wheat that acquires the apomixis trait and forms cloned embryos, and to identify the genes involved in this phenomenon. The main findings are as follows: (1) By crossing wheat lines, we produced wheat that has both parthenogenetic genes and unreduced gamete formation QTLs. (2) Through QTL analysis, we detected gene loci related to unreduced gamete formation. (3) Using parthenogenetic wheat lines, we succeeded in observing the morphology of mature embryo sacs before the onset of parthenogenesis. (4) Through comparative RNA-seq analysis, we found that 109 genes fluctuated specifically in parthenogenetic wheat lines before and after flowering.

Academic Significance and Societal Importance of the Research Achievements

食糧生産を巡る状況が厳しさを増す今日、気候変動や人口増加に対応できる生産性の高い作物品種が求められている。ヘテロシスを発現するF1品種は、高い生産性をもつ。アポミクシスは、クローン種子を形成することにより、F1雑種のヘテロシスを固定する。コムギでは、アポミクシスする系統は知られていないが、アポミクスシスの主要構成要素である「非還元配偶子形成」と「単為生殖」を個別に発現する系統は存在する。本研究の成果は、コムギ自身がもつアポミクシス形質を交配で組み合わせることでクローン胚形成を誘導できる可能性を示唆するものとして、学術的・社会的意義を有する。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (18 results)

All 2024 2023 2022 2021 2020 2019 Other

All Int'l Joint Research (6 results) Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (8 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results)

  • [Int'l Joint Research] The University of Adelaide(オーストラリア)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Agricultural Scientific Research Center/Agricultural University of Georgia(ジョージア)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] アデレード大学(オーストラリア)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] ジョージア農業大学(ジョージア)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] アデレード大学(オーストラリア)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] アデレード大学(オーストラリア)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Phylogeographic and quantitative trait locus analysis of the ability of Aegilops tauschii Coss., the D genome progenitor of common wheat, to cause genome doubling in the F1 hybrids with Triticum turgidum L., the AB genome progenitor2022

    • Author(s)
      Matsuoka Yoshihiro
    • Journal Title

      Genetic Resources and Crop Evolution

      Volume: 70 Pages: 763-773

    • DOI

      10.1007/s10722-022-01459-7

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Genetic Analysis of Hexaploid Wheat (Triticum aestivum L.) Using the Complete Sequencing of Chloroplast DNA and Haplotype Analysis of the Wknox1 Gene2021

    • Author(s)
      Gogniashvili Mari、Matsuoka Yoshihiro、Beridze Tengiz
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 22 Issue: 23 Pages: 12723-12723

    • DOI

      10.3390/ijms222312723

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Reproductive and genetic roles of the maternal progenitor in the origin of common wheat ( Triticum aestivum L.)2020

    • Author(s)
      Matsuoka Yoshihiro、Mori Naoki
    • Journal Title

      Ecology and Evolution

      Volume: 10 Issue: 24 Pages: 13926-13937

    • DOI

      10.1002/ece3.6985

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 祖先野生種プレブリーディングによるコムギ遺伝資源の創出と育種展開2020

    • Author(s)
      松岡由浩、石井孝佳、宅見薫雄、辻本壽、岸井正浩
    • Journal Title

      アグリバイオ

      Volume: 42 Pages: 42-44

    • NAID

      40022456623

    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ROLE OF A GEORGIAN LINEAGE IN THE EVOLUTION OF Aegilops tauschii Coss., AN ANCESTOR OF BREAD WHEAT2024

    • Author(s)
      Yoshihiro Matsuoka and Yoshihiro Koyama
    • Organizer
      International Scientific Conference Georgian Wheat Continuous Tradition of Use and Retuals
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] The Peculiarities of Wknox1 Gene of Hexaploidm Wheat (Triticum aestivum L.)2023

    • Author(s)
      Mari Gogniashvili, Yoshihiro Matsuoka, Tengiz Beridze
    • Organizer
      Plant and Animal Genome 30
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 雑種ゲノム倍化を引き起こす能力の種内変異パターンがコムギ・エギロプス属の進化に関して示唆しうること2022

    • Author(s)
      松岡由浩
    • Organizer
      第17回ムギ類研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] コムギ種間雑種の非還元配偶子形成: その遺伝機構とアポミクシス品種作出へ利用2021

    • Author(s)
      松岡由浩、岡田崇、宅野将平
    • Organizer
      日本植物学会第85回大会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 二粒系コムギとのF1雑種でゲノム倍化を引き起こすタルホコムギの系統地理と関連遺伝子のQTL解析2021

    • Author(s)
      松岡由浩
    • Organizer
      第16回ムギ類研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] コムギ倍数性進化における雑種ゲノム倍加の重要性2020

    • Author(s)
      松岡由浩、森直樹
    • Organizer
      日本進化学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] コムギ倍数性進化における雑種ゲノム倍加の重要性:交雑実験とQTL解析の結果から2020

    • Author(s)
      松岡由浩、森直樹
    • Organizer
      第15回ムギ類研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] タルホコムギとの交雑親和性およびタルホコムギとのF1雑種の自殖着粒率からみた二粒系コムギのナチュラルバリエーション2019

    • Author(s)
      松岡由浩、森直樹
    • Organizer
      ムギ類研究会
    • Related Report
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2025-01-30  

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