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Analysis of unidirectional hybridization between supra-annual flowering species, Strobilanthes glandulifera, and annual flowering species, S.tashiroi

Research Project

Project/Area Number 20370032
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Biodiversity/Systematics
Research InstitutionThe University of Tokyo

Principal Investigator

MURATA Jin  The University of Tokyo, 大学院・理学系研究科, 教授 (90134452)

Co-Investigator(Kenkyū-buntansha) TOMA Tetsuo  東京大学, 大学院・理学系研究科, 助教 (10376527)
Project Period (FY) 2008 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥18,590,000 (Direct Cost: ¥14,300,000、Indirect Cost: ¥4,290,000)
Fiscal Year 2010: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2009: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2008: ¥11,440,000 (Direct Cost: ¥8,800,000、Indirect Cost: ¥2,640,000)
Keywordsイセハナビ属 / キツネノマゴ科 / 種間交雑 / 一斉開花 / 生活史 / 花粉形態 / 植物 / 進化 / 分類 / 交雑 / スズムシソウ属 / 花粉 / 沖縄 / 植物相 / ヒマラヤ / 分子系統 / 日華植物区系 / フィールド調査 / 日華植物区糸
Research Abstract

In the Motobu Peninsula of Okinawa Island, the present situation of Strobilanthes tashiroi, S.flexicaulis and their putative hybrids are observed and examined ecologically, morphologically and genetically. Ecologically, S.tashiroi and S.flexicaulis in the Motobu Peninsula are confirmed to be polycarpic perennial and monocarpic and periodical mass-flowering species, respectively. The putative hybrids, including F1, F2…and following back-cross generations are also confirmed to derive from hybridization between S.tashiroi and S.flexicaulis with the latter species as major pollen donor. As the pollinators were scarcely found in non-mass-flowering years, it is deduced that hybridization occurs only in the mass-flowering years when the flowers of S. flexicaulis are overwhelming so that the S.flexicaulis acts as major pollen donor in any level of hybridization. Isolation has not been established at least between the hybrids and S.flexicaulis.

Report

(4 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (5 results)

All 2011 2010

All Presentation (5 results)

  • [Presentation] Asymmetrical hybridization between monocarpic mass-flowering shrub and polycarpic perennial herb in Strobilanthes.2011

    • Author(s)
      柿嶋聡, 邑田仁
    • Organizer
      East Asian Botany : International Symposium 2011
    • Place of Presentation
      Tsukuba, Japan.
    • Year and Date
      2011-03-19
    • Related Report
      2010 Final Research Report
  • [Presentation] 一斉開花一回繁殖型植物コダチスズムシソウと多回繁殖型植物オキナワスズムシソウの交雑現象の解析2010

    • Author(s)
      柿嶋聡, 東馬哲雄, 邑田仁
    • Organizer
      日本植物学会
    • Place of Presentation
      春日井
    • Year and Date
      2010-09-19
    • Related Report
      2010 Final Research Report
  • [Presentation] 一斉開花一回繁殖型植物コダチスズムシソウと多回繁殖型植物オキナワスズムシソウの交雑現象の解析2010

    • Author(s)
      柿嶋聡・東馬哲雄・邑田仁
    • Organizer
      日本植物学会
    • Place of Presentation
      中部大学(名古屋)
    • Year and Date
      2010-09-11
    • Related Report
      2010 Annual Research Report
  • [Presentation] 生活史の異なる植物種間における非対称な交雑2010

    • Author(s)
      柿嶋聡, 東馬哲雄, 邑田仁
    • Organizer
      日本進化学会
    • Place of Presentation
      東京
    • Year and Date
      2010-08-03
    • Related Report
      2010 Final Research Report
  • [Presentation] 生活史の異なる植物種間における非対称な交雑2010

    • Author(s)
      柿嶋聡、東馬哲雄、邑田仁
    • Organizer
      日本進化学会
    • Place of Presentation
      東京工業大学(東京)
    • Year and Date
      2010-08-03
    • Related Report
      2010 Annual Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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