• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Elucidation of last common ancestor of land plants based on meristem related genes

Research Project

Project/Area Number 21H02549
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 45030:Biodiversity and systematics-related
Research InstitutionKanazawa University

Principal Investigator

Nishiyama Tomoaki  金沢大学, 疾患モデル総合研究センター, 助教 (50390688)

Co-Investigator(Kenkyū-buntansha) 関本 弘之  日本女子大学, 理学部, 教授 (20281652)
坂山 英俊  神戸大学, 理学研究科, 准教授 (60391108)
榊原 恵子  立教大学, 理学部, 准教授 (90590000)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2023: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2022: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2021: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Keywordsナガサキツノゴケ / シャジクモ / ヒメミカヅキモ / YABBY / LEAFY / 転写因子 / KNOX / BELL / 陸上植物 / LEAFY遺伝子 / ミカヅキモ / ツノゴケ
Outline of Research at the Start

多数の植物ゲノムを解読した結果として、進化の過程で遺伝子喪失が想像以上に多様な系統で独立におきていることがわかって来た。例えば、YABBY遺伝子はツノゴケでは維持されているが少なくとも3回喪失されている。LFYについても多くの場合1遺伝子しか持たないがセン類とタイ類で異なるパラログが残っている可能性がある。本研究では、YABBY遺伝子、LEAFY遺伝子の機能をツノゴケ、ミカヅキモ、シャジクモで解析し、陸上植物の共通祖先がどのようなものであったのかについて推定像を打ち立てたい。

Outline of Final Research Achievements

Closterium yabby knockout candidate strains were obtained. Anthoceros agrestis KNOX2 and BELL ectopic expression strains were obtained and their phenotypes were observed. Chara braunii LEAFY cDNA containing complete coding sequence was cloned and its nucleotide sequence was determined. The cDNA were transformed to A. agrestis for ectopic expression. CRISPR-Cas9 construct with A. agrestis U6 promoter candidate was introduced to A. agrestis, but editing was not confirmed. Confirmation of expression of each component should be performed. A new promoter terminator combination for C. braunii was confirmed to be able to drive an exogeneous reporter gene by particle bombardment.

Academic Significance and Societal Importance of the Research Achievements

コケ植物、シャジクモ藻類のゲノム解読からわかってきた被子植物のメリステム制御に関わる遺伝子の機能解明を進めている。この研究により、陸上植物の共通祖先はどのようなものであったのか、藻類からどのようにして陸上植物が成立し、陸上植物が多様化したかの過程についてより具体的に推定するのにつながる。またこれらの生物での遺伝子機能解析技術の向上は他の遺伝子の機能解析にも寄与する。

Report

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

    (17 results)

All 2024 2023 2022 2021

All Journal Article (8 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 4 results) Presentation (9 results) (of which Int'l Joint Research: 3 results,  Invited: 3 results)

  • [Journal Article] A divergent RWP-RK transcription factor determines mating type in heterothallic Closterium2023

    • Author(s)
      Sekimoto, H., Komiya, A., Tsuyuki, N., Kawai, J., Kanda, N., Ootsuki, R., Suzuki, Y., Toyoda, A., Fujiyama, A., Kasahara, M., Abe, J., Tsuchikane, Y., Nishiyama, T.
    • Journal Title

      New Phytologist

      Volume: 237 Issue: 5 Pages: 1636-1651

    • DOI

      10.1111/nph.18662

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] ツノゴケ─ゲノム解読と形質転換技術が拓く植物進化研究の新機軸2022

    • Author(s)
      西山智明, 嶋村正樹, 榊原恵子
    • Journal Title

      生物の科学 遺伝

      Volume: 76 Pages: 183-189

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Zygnematophycean algae: Possible models for cellular and evolutionary biology2022

    • Author(s)
      Ohtaka Kinuka、Sekimoto Hiroyuki
    • Journal Title

      Seminars in Cell & Developmental Biology

      Volume: - Pages: 59-68

    • DOI

      10.1016/j.semcdb.2022.03.042

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] An Agrobacterium ‐mediated stable transformation technique for the hornwort model Anthoceros agrestis2021

    • Author(s)
      Frangedakis Eftychios、Waller Manuel、Nishiyama Tomoaki、Tsukaya Hirokazu、Xu Xia、Yue Yuling、Tjahjadi Michelle、Gunadi Andika、Van Eck Joyce、Li Fay‐Wei、Sz?v?nyi P?ter、Sakakibara Keiko
    • Journal Title

      New Phytologist

      Volume: 232 Issue: 3 Pages: 1488-1505

    • DOI

      10.1111/nph.17524

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Highly efficient transformation of the model zygnematophycean alga <i>Closterium peracerosum‐strigosum‐littorale</i> complex by square‐pulse electroporation2021

    • Author(s)
      Kawai Junko、Kanazawa Manaki、Suzuki Rie、Kikuchi Nanako、Hayakawa Yasuhiko、Sekimoto Hiroyuki
    • Journal Title

      New Phytologist

      Volume: 233 Issue: 1 Pages: 569-578

    • DOI

      10.1111/nph.17763

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] ゲノム解析から見たツノゴケの二酸化炭素濃縮機構とシアノバクテリア,菌類との共生: 植物の陸上進出を可能にした生存戦略2021

    • Author(s)
      西山智明,榊原恵子,嶋村正樹
    • Journal Title

      化学と生物

      Volume: 59 Pages: 484-487

    • Related Report
      2021 Annual Research Report
  • [Journal Article] 陸上植物起源研究の最後のフロンティア、ツノゴケの生物学2021

    • Author(s)
      嶋村 正樹、西山 智明、榊原 恵子
    • Journal Title

      BSJ-Review

      Volume: 12 Issue: D Pages: 183-185

    • DOI

      10.24480/bsj-review.12d1.00214

    • ISSN
      2432-9819
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] ツノゴケゲノムと陸上植物の発生進化2021

    • Author(s)
      西山 智明、嶋村 正樹、榊原 恵子
    • Journal Title

      BSJ-Review

      Volume: 12 Issue: D Pages: 186-195

    • DOI

      10.24480/bsj-review.12d2.00215

    • ISSN
      2432-9819
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] ヒメミカヅキモBELL1遺伝子の有性生殖過程における機能2024

    • Author(s)
      專田梨瑛子,加来卓也, 川井 絢子,西山 智明,関本 弘之,榊原 恵子
    • Organizer
      日本藻類学会第48回大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ストレプト植物10億年の進化:多様性とゲノム2023

    • Author(s)
      西山 智明
    • Organizer
      日本植物学会第87回大会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] ストレプト藻類研究の魅力:シャジクモ,アオミドロを中心に2023

    • Author(s)
      坂山 英俊、池谷 仁里、西山 智明
    • Organizer
      日本植物学会第87回大会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] ヒメミカヅキモBELL1遺伝子の有性生殖過程における発現解析と接合型における役割2023

    • Author(s)
      專田 梨瑛子、川井 絢子、西山 智明、関本 弘之、榊原 恵子
    • Organizer
      日本植物学会第87回大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ツノゴケ特異性のゲノム基盤と新たな謎2023

    • Author(s)
      榊原恵子
    • Organizer
      日本植物学会第87回大会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Hornwort model system Anthoceros agrestis2023

    • Author(s)
      Kazune Ezaki, Tomoaki Nishiyama, Keiko Sakakibara
    • Organizer
      Taiwan-Japan Plant Biology
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Approach to elucidate the molecular mechanism regulating the basal meristem of hornwort sporophytes2023

    • Author(s)
      Kazune Ezaki, Keiko Sakakibara
    • Organizer
      the 33rd International Conference on Arabidopsis Research
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Transformation, whole genome, mating-type determination, and RWP-RK genes in the heterothallic Closterium peracerosum-strigosum-littorale complex, a new model streptophyte alga2023

    • Author(s)
      Sekimoto, H.
    • Organizer
      Workshop in Streptophyte Algae
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ツノゴケAnthoceros agrestisのアグロバクテリウムを介した形質転換系の確立2021

    • Author(s)
      Eftychios Frangedakis、Manuel Waller、西山智明、塚谷裕一、Peter Szovenyi、榊原恵子
    • Organizer
      日本植物学会第85回大会
    • Related Report
      2021 Annual Research Report

URL: 

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

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi