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A theoretical study for the kin discrimination of plants: the perspective of plant growth

Research Project

Project/Area Number 20K15876
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 45040:Ecology and environment-related
Research InstitutionTokyo Metropolitan University

Principal Investigator

Tachiki Yuuya  東京都立大学, 理学研究科, 助教 (40741799)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords植物 / ゲーム理論 / 数理モデル / 競争 / 協力 / 進化 / 血縁認識 / 進化ゲーム / 競争応答 / 共有地の悲劇 / 環境認識
Outline of Research at the Start

植物は周囲の生物/非生物環境を認識し、最適から逸脱した環境に晒された際に環境ごとにベストと考えられる反応を示す。この植物の柔軟な応答を数理モデルにより表現し、進化ゲーム理論の枠組みで解析を行い、植物の、(特に生物的)環境に対する応答についての理論予測を行う。数理モデルによる予測を、栽培実験によって検証することで、植物の応答理論を構築する。

Outline of Final Research Achievements

An increasing number of studies have focused on tragedy of the commons in belowground competition in plants. Game theoretic approaches has contributed to understand the condition in which plants exhibit the overproliferation of roots. In this study we incorporated the growth dynamics in the tragedy of the commons game in plants. As a result we demonstrated that the tragedy of the commons commonly occurred but the root overproliferation does not necessarily occur (Kim et al 2021). In addition to this, we consider the situation in which plants know the kinship with their competitor and change their rooting tactic depending on it. We derived the condition in which plants cooperate each other to achieve the highest fitness gain without the overproliferation of roots.

Academic Significance and Societal Importance of the Research Achievements

植物は周囲の物理/化学的な環境だけでなく、生物学的環境にも柔軟に応答することがわかってきました。植物が周囲の他個体と土壌中の資源をめぐって競争しているときには、自身の成長バランスを乱してでも根を大きくさせます。この応答を個体群のすべての個体が行うことで生産性が低下してしまうことから共有地の悲劇に例えられます。本研究では、植物の共有地の悲劇に関連して植物が成長しながら競争を行うプロセスや、植物が競争相手との血縁関係に応じて振る舞いを変える現象について、数理モデルを用いた理論研究を展開しました。この成果は植物の種多様性維持機構についての新たなプロセスの提案や、農作物の生産性向上に寄与します。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (17 results)

All 2022 2021 2020 Other

All Journal Article (9 results) (of which Peer Reviewed: 9 results,  Open Access: 3 results) Presentation (7 results) (of which Invited: 1 results) Remarks (1 results)

  • [Journal Article] Urban-rural gradients: how landscape changes drive adaptive evolution of plant competitive traits2022

    • Author(s)
      Fukano Yuya、Uchida Kei、Tachiki Yuuya
    • Journal Title

      Evolutionary Ecology

      Volume: 37 Issue: 2 Pages: 215-232

    • DOI

      10.1007/s10682-022-10215-3

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Evolution of competitive traits changes species diversity in a natural field2022

    • Author(s)
      Fukano Yuya、Tachiki Yuuya、Kasada Minoru、Uchida Kei
    • Journal Title

      Proceedings of the Royal Society B: Biological Sciences

      Volume: 289 Issue: 1983 Pages: 20221376-20221376

    • DOI

      10.1098/rspb.2022.1376

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Resource allocation in tragedy of the commons game in plants for belowground competition2021

    • Author(s)
      Kim, B. M., Horita, J., Suzuki, J. I., & Tachiki, Y.
    • Journal Title

      Journal of Theoretical Biology

      Volume: 592 Pages: 110858-110858

    • DOI

      10.1016/j.jtbi.2021.110858

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Recurrent speciation rates on islands decline with species number2021

    • Author(s)
      Yamaguchi Ryo、Iwasa Yoh、Tachiki Yuuya
    • Journal Title

      Proceedings of the Royal Society B: Biological Sciences

      Volume: 288 Issue: 1949 Pages: 20210255-20210255

    • DOI

      10.1098/rspb.2021.0255

    • NAID

      120007097381

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The eco‐evolutionary dynamics of prior selfing rates promote coexistence without niche partitioning under conditions of reproductive interference2021

    • Author(s)
      Katsuhara Koki R.、Tachiki Yuuya、Iritani Ryosuke、Ushimaru Atushi
    • Journal Title

      Journal of Ecology

      Volume: 109 Issue: 11 Pages: 3916-3928

    • DOI

      10.1111/1365-2745.13768

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Evolutionary ecology of climacteric and non-climacteric fruits2021

    • Author(s)
      Fukano Yuya、Tachiki Yuuya
    • Journal Title

      Biology Letters

      Volume: 17 Issue: 9 Pages: 20210352-20210352

    • DOI

      10.1098/rsbl.2021.0352

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Eco-evolutionary dynamics may show an irreversible regime shift, illustrated by salmonids facing climate change2021

    • Author(s)
      Horita Junnosuke、Iwasa Yoh、Tachiki Yuuya
    • Journal Title

      Theoretical Ecology

      Volume: ー Issue: 2 Pages: 345-357

    • DOI

      10.1007/s12080-021-00502-0

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Positive Feedback between Behavioral and Hormonal Dynamics Leads to Differentiation of Life-History Tactics2020

    • Author(s)
      Horita Junnosuke、Iwasa Yoh、Tachiki Yuuya
    • Journal Title

      The American Naturalist

      Volume: 196 Issue: 6 Pages: 679-689

    • DOI

      10.1086/711414

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Contemporary adaptive divergence of plant competitive traits in urban and rural populations and its implication for weed management2020

    • Author(s)
      Fukano Yuya、Guo Wei、Uchida Kei、Tachiki Yuuya
    • Journal Title

      Journal of Ecology

      Volume: 108 Issue: 6 Pages: 2521-2530

    • DOI

      10.1111/1365-2745.13472

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] Floral display への資源の利他的投資を促す条件2022

    • Author(s)
      冨塚暖史, 鈴木準一郎, 立木佑弥
    • Organizer
      第32回日本数理生物学会大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 血縁認識による花ディスプレイの利他的ふるまいの進化2022

    • Author(s)
      冨塚暖史, 鈴木準一郎, 立木佑弥
    • Organizer
      第70回日本生態学会大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 植物の血縁認識による共有地の悲劇の回避と自己組織化2021

    • Author(s)
      立木佑弥
    • Organizer
      ゲーム理論ワークショップ2022
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 都市化への適応速度に影響を与えるメタ個体群構造2021

    • Author(s)
      立木佑弥、入江遥、深野祐也
    • Organizer
      2021年度日本数理生物学会年会
    • Related Report
      2021 Research-status Report
  • [Presentation] Cooperative behavior through kin recognition under tragedy of the common games in plants2021

    • Author(s)
      Bo-Moon Kim, Kaoru Muramoto, Jun-Ichirou Suzuki, Akira Yamawo, Yuuya Tachiki
    • Organizer
      2021年度日本数理生物学会年会
    • Related Report
      2021 Research-status Report
  • [Presentation] タケササ類一斉開花枯死と地下 茎構造の進化モデル2021

    • Author(s)
      立木佑弥、早野莉佳子
    • Organizer
      第68回日本生態学会大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 血縁認識による、草本群集の多種共存促進機構2020

    • Author(s)
      立木佑弥
    • Organizer
      2020年度日本数理生物学会年会
    • Related Report
      2020 Research-status Report
  • [Remarks] リサーチマップ

    • URL

      https://researchmap.jp/yuuya_tachiki

    • Related Report
      2022 Annual Research Report 2021 Research-status Report 2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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