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Analysis of molecular mechanisms on the evolution of diploid plant body in land plants.

Research Project

Project/Area Number 19370036
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Biodiversity/Systematics
Research InstitutionNational Institute for Basic Biology

Principal Investigator

HASEBE Mitsuyasu  National Institute for Basic Biology, 生物進化研究部門, 教授 (40237996)

Co-Investigator(Kenkyū-buntansha) MURATA Takashi  基礎生物学研究所, 生物進化研究部門, 准教授 (00242024)
HIWATASHI Yuji  基礎生物学研究所, 生物進化研究部門, 助教 (10373193)
TANAHASHI Takako  基礎生物学研究所, 生物進化研究部門, 助教 (40414015)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2008: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
Fiscal Year 2007: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Keywordsポリコーム遺伝子 / CLF / FIE / 世代交代 / 進化 / 胞子体 / 配偶体 / 幹細胞 / 相転換 / 植物 / 生活史
Research Abstract

ヒメツリガネゴケPpCLF 遺伝子は配偶体世代で胞子体多能性幹細胞(胞子体頂端細胞)形成を抑制する働きを持っていることがわかった。そして、受精後にその発現が消失することによって、受精卵は胞子体幹細胞を形成し、胞子体幹細胞が活性を持つ間、胞子体は伸長を続ける。従って、ヒメツリガネゴケPpCLF 遺伝子はシロイヌナズナCLF 遺伝子と異なり栄養成長を抑制し、生殖成長を促進する働きがあることがわかった。このことから、PpCLF 遺伝子のターゲットの変化によって、陸上植物の2倍体世代延長が引き起こされた可能性が高いことがわかった。

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (17 results)

All 2009 2008

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (13 results)

  • [Journal Article] Class 1 KNOX genes are not involved in shoot development in the moss Physcomitrella patens but do function in sporophyte development.2008

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

      Evol. Dev. 10

      Pages: 555-556

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Convergent evolution of shoots in land plants : lack of auxin polar transport in moss shoots.2008

    • Author(s)
      Fujita, T., et al.
    • Journal Title

      Evol. Dev. 10

      Pages: 176-186

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Convergent evolution of shoots in land plants : lack of auxin polar transport in moss shoots2008

    • Author(s)
      Fujita, T., et al.
    • Journal Title

      Evol. Dev. 10

      Pages: 176-186

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Class 1 KNOX genes are not involved in shoot development in the moss Physcomitrella patens but do function in sporophyte development2008

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

      Evol. Dev. 10

      Pages: 555-556

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] ヒメツリガネゴケの世代交代を制御するポリコーム遺伝子PpCLF2009

    • Author(s)
      岡野陽介, 他
    • Organizer
      第50回日本植物生理学会年会
    • Place of Presentation
      名古屋大学
    • Year and Date
      2009-03-21
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] 基礎生物学のおもしろさ:その意外性2009

    • Author(s)
      長谷部光泰
    • Organizer
      京都産業大学バイオフォーラム2008 秋
    • Place of Presentation
      京都産業大学
    • Year and Date
      2009-03-10
    • Related Report
      2008 Final Research Report
  • [Presentation] 基礎生物学のおもしろさ:その意外性2009

    • Author(s)
      長谷部光泰
    • Organizer
      京都産業大学バイオフォーラム2008秋
    • Place of Presentation
      京都産業大学
    • Year and Date
      2009-03-10
    • Related Report
      2008 Annual Research Report
  • [Presentation] 植物の細胞履歴とクロマチン修飾2009

    • Author(s)
      長谷部光泰
    • Organizer
      国際高等研究所研究会
    • Place of Presentation
      国際高等研究所
    • Year and Date
      2009-03-07
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] 植物の世代交代の分子機構とボディープランの進化2009

    • Author(s)
      長谷部光泰
    • Organizer
      九大COEシンポジウム
    • Place of Presentation
      九州大学
    • Year and Date
      2009-02-07
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] A polycomb repression complex 2 gene manages life cycle by regulating pluripotent stem cell character2009

    • Author(s)
      Mitsuyasu Hasebe
    • Organizer
      25th Symposium in Plant Biology
    • Place of Presentation
      カリフォルニア、米国
    • Year and Date
      2009-01-31
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] PcG gene manages life cycle by regulating pluripotent stem cell character2008

    • Author(s)
      Mitsuyasu Hasebe
    • Organizer
      8th NIBB-EMBL Join Meeting
    • Place of Presentation
      基礎生物学研究所
    • Year and Date
      2008-11-22
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] Genome analyses of the moss Physcomitrella patens and its implication on the evolution of development genes in land plants.2008

    • Author(s)
      Mitsuyasu Hasebe
    • Organizer
      XIth France-Japan Workshop
    • Place of Presentation
      筑波大学
    • Year and Date
      2008-10-21
    • Related Report
      2008 Final Research Report
  • [Presentation] Genome analyses of the moss Physcomitrella patens and its implication on the evolution of development genes in land plants2008

    • Author(s)
      Mitsuyasu Hasebe
    • Organizer
      XIth France-Japan Workshop
    • Place of Presentation
      筑波大学
    • Year and Date
      2008-10-21
    • Related Report
      2008 Annual Research Report
  • [Presentation] 多様性生物学における細胞生物学、発生学、ゲノム生物学との融合と新展開2008

    • Author(s)
      長谷部光泰
    • Organizer
      日本植物学会第72回大会
    • Place of Presentation
      高知大学
    • Year and Date
      2008-09-25
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] The origin and evolution of shoot system in land plants2008

    • Author(s)
      Mitsuyasu Hasebe
    • Organizer
      日本進化学会第10回年会シンポジウム
    • Place of Presentation
      東京大学
    • Year and Date
      2008-08-23
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] Evolution of genome and body plan in land plants2008

    • Author(s)
      Mitsuyasu Hasebe
    • Organizer
      International Congress of Genetics
    • Place of Presentation
      ベルリン、ドイツ
    • Year and Date
      2008-07-15
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] 比較ゲノムから明らかになった動物と植物の発生進化の違い2008

    • Author(s)
      長谷部光泰
    • Organizer
      東大大学院新領域21世紀COEシンポジウム
    • Place of Presentation
      東京大学
    • Year and Date
      2008-04-12
    • Related Report
      2008 Annual Research Report 2008 Final Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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