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Analysis of effects of repeated clonal propagation on growth and genome in rice

Research Project

Project/Area Number 21K05521
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 39010:Science in plant genetics and breeding-related
Research InstitutionNational Institute of Genetics

Principal Investigator

NOSAKA-TAKAHASHI Misuzu  国立遺伝学研究所, ゲノム・進化研究系, 助教 (20738091)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywordsイネ / 栄養繁殖 / 種子繁殖 / 低温 / 多年生 / 低温ストレス / ゲノム / 茎頂分裂組織
Outline of Research at the Start

植物は長期にわたって成長を続けることができ、地上部の成長は茎頂分裂組織の持続的な器官分化により支えられている。長期間、器官分化を続けた茎頂分裂組織において、茎頂分裂組織の機能はどのように維持されているのか又は変化しているのであろうか。本研究は栄養繁殖により長年維持している植物個体と種子から発芽した1年目の通常個体の茎頂分裂組織の機能を比較することで、茎頂分裂組織の永続性や老化の仕組みを理解することを目指す。本研究ではイネを多年生のモデル植物として利用し、栄養繁殖個体と種子由来の通常個体の成長やゲノムを比較することで、栄養繁殖の長期化が茎頂分裂組織の機能やゲノムに及ぼす影響を明らかにする。

Outline of Final Research Achievements

Using perennial rice as a model, this study aimed to determine the effects of repeated clonal propagation on plant growth and genome. The main results of the study revealed that low temperature is one of the factors that induce growth suppression observed in clonal propagated plants. The results of this study suggest the importance of temperature management during the seedling stage in maintaining the yield of rice using clonal propagated plants.

Academic Significance and Societal Importance of the Research Achievements

本研究成果の学術的意義としては、多年生イネをモデルに、長期栄養繁殖が植物の成長やゲノムに及ぼす影響を明らかにすることを目指し、栄養繁殖個体で見られる成長抑制についての知見を集めたことが挙げられる。社会的意義としては、本研究ではイネの栄養繁殖個体の収量維持には育苗期の温度管理の重要性を示唆する結果が得られ、今後の栄養繁殖を活用した省力型農業の発展に寄与する可能性がある。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (6 results)

All 2023 2022 2021

All Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 6 results)

  • [Journal Article] Post-embryonic function of GLOBULAR EMBRYO 4 (GLE4)/OsMPK6 in rice development2023

    • Author(s)
      Ishimoto Kiyoe、Nosaka-Takahashi Misuzu、Kishi-Kaboshi Mitsuko、Watanabe Tsuneaki、Abe Kiyomi、Shimizu-Sato Sae、Takahashi Hirokazu、Nakazono Mikio、Hirochika Hirohiko、Sato Yutaka
    • Journal Title

      Plant Biotechnology

      Volume: 40 Issue: 1 Pages: 9-13

    • DOI

      10.5511/plantbiotechnology.22.1117a

    • ISSN
      1342-4580, 1347-6114
    • Year and Date
      2023-03-25
    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Control of Plant Cell Growth and Proliferation by MO25A, a Conserved Major Component of the Mammalian Sterile 20-Like Kinase Pathway2023

    • Author(s)
      Ta Kim Nhung、Yoshida Mari W、Tezuka Takumi、Shimizu-Sato Sae、Nosaka-Takahashi Misuzu、Toyoda Atsushi、Suzuki Takamasa、Goshima Gohta、Sato Yutaka
    • Journal Title

      Plant and Cell Physiology

      Volume: 64 Issue: 3 Pages: 336-351

    • DOI

      10.1093/pcp/pcad005

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A leaf‐emanated signal orchestrates grain size and number in response to maternal resources2023

    • Author(s)
      Ta Kim Nhung、Shimizu‐Sato Sae、Agata Ayumi、Yoshida Yuri、Taoka Ken‐ichiro、Tsuji Hiroyuki、Akagi Takashi、Tanizawa Yasuhiro、Sano Ryosuke、Nosaka‐Takahashi Misuzu、Suzuki Toshiya、Demura Taku、Toyoda Atsushi、Nakamura Yasukazu、Sato Yutaka
    • Journal Title

      The Plant Journal

      Volume: - Issue: 1 Pages: 175-189

    • DOI

      10.1111/tpj.16219

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Measurements of the number of specified and unspecified cells in the shoot apical meristem during a plastochron in rice (Oryza sativa) reveal the robustness of cellular specification process in plant development2022

    • Author(s)
      Nosaka-Takahashi Misuzu、Kato Makio、Kumamaru Toshihiro、Sato Yutaka
    • Journal Title

      PLOS ONE

      Volume: 17 Issue: 6 Pages: e0269374-e0269374

    • DOI

      10.1371/journal.pone.0269374

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Measurements of Antibacterial Activity of Seed Crude Extracts in Cultivated Rice and Wild Oryza Species2022

    • Author(s)
      Yoshida Yuri、Nosaka-T Misuzu、Yoshikawa Takanori、Sato Yutaka
    • Journal Title

      Rice

      Volume: 15 Issue: 1 Pages: 63-63

    • DOI

      10.1186/s12284-022-00610-3

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Collection, preservation and distribution of <i>Oryza</i> genetic resources by the National Bioresource Project RICE (NBRP-RICE)2021

    • Author(s)
      Sato Yutaka、Tsuda Katsutoshi、Yamagata Yoshiyuki、Matsusaka Hiroaki、Kajiya-Kanegae Hiromi、Yoshida Yuri、Agata Ayumi、Ta Kim Nhung、Shimizu-Sato Sae、Suzuki Toshiya、Nosaka-Takahashi Misuzu、Kubo Takahiko、Kawamoto Shoko、Nonomura Ken-Ichi、Yasui Hideshi、Kumamaru Toshihiro
    • Journal Title

      Breeding Science

      Volume: 71 Issue: 3 Pages: 291-298

    • DOI

      10.1270/jsbbs.21005

    • NAID

      130008069069

    • ISSN
      1344-7610, 1347-3735
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access

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Published: 2021-04-28   Modified: 2025-01-30  

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