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Evolutionary differentiation and pollination system in distylous tree, Schoepfia jasminodora (Schoepfiaceae)

Research Project

Project/Area Number 19K06825
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 45030:Biodiversity and systematics-related
Research InstitutionNational Museum of Nature and Science, Tokyo (2020-2021)
Tokyo Metropolitan University (2019)

Principal Investigator

Sugawara Takashi  独立行政法人国立科学博物館, 植物研究部, 客員研究員 (10226425)

Co-Investigator(Kenkyū-buntansha) 内貴 章世  琉球大学, 熱帯生物圏研究センター, 准教授 (30393200)
渡邊 謙太  沖縄工業高等専門学校, 技術室, 技術専門職員 (50510111)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsボロボロノキ / 二型花柱性 / 送粉様式 / 花香成分 / 遺伝的分化 / ガ媒花 / ハナバチ媒花 / 系統地理 / 蛾媒花 / Structure解析 / 送粉システム / 東アジア
Outline of Research at the Start

ボロボロノキは、二型花柱性という特異な繁殖様式を示し、その送粉者として奄美大島では夜行性の小型ガ類が、熊本ではガ類に加えてマルハナバチ類が重要であった。また送粉者の違いに対応するように集団間で花香成分が大きく異なり、熊本では奄美大島で検出されない成分が検出された。これらの結果は、分布域拡大において異なる送粉者に対応して、花香を変化させてきた可能性を示唆する。そこで本研究では、本種分布域の主要な集団について花粉媒介者、花香成分の実態解明を進め、集団間の遺伝的分化に根ざした系統地理学的解析から、送粉様式の多様化がどこで、どのように起こってきたのか、そのプロセスを明らかにすることを目的とする。

Outline of Final Research Achievements

To understand the actual condition of pollination and genetics in a distylous species of Schoepfia jasminodora, we investigated flower visitors, composition of floral volatiles and genetic differentiation by using several populations occurring in Japan. 1) It was confirmed that the populations from Nansei Islands were pollinated by small night moths while the populations from kyushu District were pollinated by small night moths and bumblebees. 2)Floral volatiles were mainly composed of phenylpropanoid and did not differ among the populations of Kyushu District and Nansei Islands. 3)STRUCTURE analysis indicated that the populations of Kyushu District were clearly differentiated from the populations of Nansei Islands. 4) The pollination system matched a genetic differentiation, but did not coincided with a composition of floral volatiles.

Academic Significance and Societal Importance of the Research Achievements

本研究は、二型花柱性という特異な繁殖システムをもつボロボロノキの送粉様式、花香成分、遺伝的分化について解析し、その送粉様式や遺伝的特性が地理的分布に対応して変化していることを示した成果である。このような例は二型花柱性植物ではあまり報告がなく、特にガ媒花的植物においては学術的にも興味深い成果である。
そもそも本種の繁殖様式については、雌雄異株と捉えられるなど、その繁殖の実態が正しく理解されていなかった側面がある。送粉様式を含めた繁殖様式の実態解明は、希産地域での本種の保全を進めていく上でも意義のある成果と考える。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (16 results)

All 2022 2021 2020 2019

All Journal Article (10 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 10 results,  Open Access: 2 results) Presentation (4 results) Book (2 results)

  • [Journal Article] Polygamous breeding system identified in the distylous genus Psychotria: P. manillensis in the Ryukyu archipelago, Japan.2021

    • Author(s)
      Kenta Watanabe, Akira Shimizu and Takashi Sugawara
    • Journal Title

      Peer J.

      Volume: - Pages: 1-17

    • DOI

      10.7717/peerj.12318

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Contribution to the Flora of Myanmar VII: Nine new distributional records of flowering plants from Myanmar2021

    • Author(s)
      Nobuyuki Tanaka, Tetsuo Ohi-Toma, Shuichiro TAgane, Kana Watanabe-Toma, Takashi Sugawara, Mu Mu Aung and Jin Murata
    • Journal Title

      Thai Journal of Botany

      Volume: 13 Pages: 47-57

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Aristolochia vestita, a new species of Subgenus Siphisia (Aristolochiaceae) from Zhejiang, China2021

    • Author(s)
      Tetsuo Ohi-Toma, Pan Li, Takashi Sugawara and Jin Murata
    • Journal Title

      The jouurnal of Japanese Botany

      Volume: 96 Pages: 253-263

    • NAID

      40022735680

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Radiation history of Asian Asarum (sect. Heterotropa, Aristolochiaceae) resolved using a phylogenomic approach based on double-digested RAD-seq data2020

    • Author(s)
      Okuyama Yudai、Goto Nana、Nagano Atsushi J、Yasugi Masaki、Kokubugata Goro、Kudoh Hiroshi、Qi Zhechen、Ito Takuro、Kakishima Satoshi、Sugawara Takashi
    • Journal Title

      Annals of Botany

      Volume: - Issue: 2 Pages: 245-260

    • DOI

      10.1093/aob/mcaa072

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A New Form of Boschniakia rossica (Orobancaceae) from the Southern Alps, Japan2020

    • Author(s)
      Sugawara Takashi and Takeshige Satoshi
    • Journal Title

      The Journal of Japanese Botany

      Volume: 95 Pages: 158-161

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] 小笠原の植物の進化を垣間見る~性表現の多様性をめぐって2020

    • Author(s)
      菅原 敬
    • Journal Title

      東京都立大学小笠原研究年報

      Volume: 43 Pages: 103-111

    • NAID

      40022317635

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] A New Form of Boschniakia rossica (Cham. & Schltdl.) B. Fedtsch. (Orobancaceae) from the Southern Alps, Japan2020

    • Author(s)
      Sugawara, T. and Takeshige, T.
    • Journal Title

      The Journal of Japanese Botany

      Volume: 95

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Radiation history of Asian Asarum (sect. Heterotropa, Aristolochiaceae) resolved by phylogenomic approach based on double-digested RAD-seq data2020

    • Author(s)
      Okuyama, Y., Goto, N., Nagano, A., Yasugi, M., Kokubugata, G., Kudo, H., Qi, Z.-C, Kakishima, S., Ito, T., Kakishima, S. and Sugawara, T.
    • Journal Title

      Annals of Botany

      Volume: 125

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] 小笠原の植物の進化を垣間見るー性表現の多様性をめぐってー2020

    • Author(s)
      菅原 敬
    • Journal Title

      小笠原研究年報

      Volume: 43

    • NAID

      40022317635

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Distyly and reproductive nature of Guettarda speciosa L. (Rubiaceae) occurring in Taiwan and Japan2019

    • Author(s)
      Hoshino, Y., Watanabe, K., Chen, C. -F., Takaso, T. and Sugawara, T.
    • Journal Title

      The Journal of Japanese Botany

      Volume: 94 Pages: 342-353

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 二型花柱性ボロボロノキの送粉様式と花香成分・遺伝的変異との関連2022

    • Author(s)
      菅原敬,内貴章世,渡邊謙太,柿嶋聡,藏屋英介,荻原弘貴
    • Organizer
      日本植物分類学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] スイカズラの昼夜間の送粉者及び種子生産に対する都市化の影響2021

    • Author(s)
      橋本和真,星野佑介,菅原敬,堂園いくみ
    • Organizer
      種生物学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 南アルプスのオニク属植物2020

    • Author(s)
      菅原敬&竹重聡
    • Organizer
      日本植物分類学会第19回大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 小笠原固有種オオシラタマカズラの二型花柱性とその繁殖に関する研究2020

    • Author(s)
      宮川彩花&菅原敬
    • Organizer
      日本植物分類学会第19回大会
    • Related Report
      2019 Research-status Report
  • [Book] 世界自然遺産小笠原諸島ー自然と歴史文化ー2021

    • Author(s)
      東京都立大学小笠原研究委員会
    • Total Pages
      184
    • Publisher
      朝倉書店
    • ISBN
      9784254180589
    • Related Report
      2021 Annual Research Report
  • [Book] 世界自然遺産 小笠原諸島2021

    • Author(s)
      東京都立大学小笠原研究委員会
    • Total Pages
      196
    • Publisher
      朝倉書店
    • ISBN
      9784254180589
    • Related Report
      2020 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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