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Evolutionary and developmental study on heterophylly of an aquatic plant Callitriche palustris

Research Project

Project/Area Number 16H06733
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Evolutionary biology
Research InstitutionThe University of Tokyo

Principal Investigator

Koga Hiroyuki  東京大学, 大学院理学系研究科(理学部), 助教 (30783865)

Project Period (FY) 2016-08-26 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords異形葉性 / 葉の発生 / ミズハコベ / 水草 / アワゴケ属 / 進化発生学 / トランスクリプトーム / 形態形成 / 葉 / 植物 / 葉発生
Outline of Final Research Achievements

This study aims to reveal how the remarkable heterophylly exhibited when the aquatic plants submerged is controlled and how it evolved, using Callitriche palustris (Plantaginaceae) as a model. As a result of the study, it was confirmed that various phytohormones are involved in the heterophylly of this plant. Also, comprehensive and comparative expression analyses using the closely related plant which does not show heterophylly revealed the gene set important for heterophyllic leaf formation in C. palustris. Through this study, we were able to reveal a part of the mechanism of differential leaf development, which is a fundamental finding in understanding the evolution of heterohpylly in aquatic plants.

Report

(3 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Annual Research Report
  • Research Products

    (4 results)

All 2018 2017

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (3 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Genetic mechanisms of bone digestion and nutrient absorption in the bone-eating worm Osedax japonicus inferred from transcriptome and gene expression analyses.2017

    • Author(s)
      Miyamoto N, Yoshida MA, Koga H, Fujiwara Y
    • Journal Title

      BMC Evolutionary Biology

      Volume: 17 Issue: 1

    • DOI

      10.1186/s12862-016-0844-4

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] An aquatic plant Callitriche palustris: its dimorphic nature of leaf development, and potentials as a modern experimental plant2018

    • Author(s)
      Hiroyuki Koga, Hirokazu Tsukaya
    • Organizer
      第59回日本植物生理学会年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Understanding the molecular mechanisms of dimorphic leaf development in response to submergence using non-model plants Callitriche2017

    • Author(s)
      Hiroyuki Koga, Kei Hashimoto, Kiminori Toyooka, Hirokazu Tsukaya
    • Organizer
      Taiwan-Japan Plant Biology 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 水草ミズハコベにおけるシュート再生系と形質転換法の確立2017

    • Author(s)
      古賀皓之、塚谷裕一
    • Organizer
      日本植物学会第81回大会
    • Related Report
      2017 Annual Research Report

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Published: 2016-09-02   Modified: 2019-03-29  

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