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2008 Fiscal Year Final Research Report

Plant mating success and gene flow in alpine ecosystems : effects of selfing, hybridization and pollinator behaviors

Research Project

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Project/Area Number 19770009
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Ecology/Environment
Research InstitutionTokyo University of Agriculture (2008)
Hokkaido University (2007)

Principal Investigator

KAMEYAMA Yoshiaki  Tokyo University of Agriculture, 地域環境科学部, 助教 (10447047)

Co-Investigator(Renkei-kenkyūsha) KUDO Gaku  北海道大学, 大学院・地球環境科学研究院, 准教授 (30221930)
Project Period (FY) 2007 – 2008
Keywords高山生態系 / 雪解け傾度 / 交雑帯 / 花粉媒介者 / 受粉成功 / 繁殖成功 / 他殖率 / ツガザクラ属植物
Research Abstract

高山生態系では雪解け時期を反映した連続的な開花現象が認められ、傾度に沿って花粉媒介者や近縁他種との関係が変化する。北海道大雪山系におけるツガザクラ属植物では、雪解け傾度に沿って雑種第一代が優占する広大な交雑帯が形成されており、雑種と親種の間で花粉媒介者を巡る競争が生じていた。親種の受粉成功は開花時期や年によって大きく変動し、繁殖成功(他殖率)に多大な影響を及ぼしていた。

  • Research Products

    (6 results)

All 2009 2008

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (4 results)

  • [Journal Article] Flowering phenology influences seed production and outcrossing rate in populations of an alpine snowbed shrub, Phyllodoce aleutica: effects of pollinators and self-incompatibility2009

    • Author(s)
      Kameyama Y, Kudo G
    • Journal Title

      Annals of Botany (in press)

    • Peer Reviewed
  • [Journal Article] A hybrid zone dominated by fertile F1s of two alpine species, Phyllodoce caerulea and Phyllodoce aleutica, along a snowmelt gradient2008

    • Author(s)
      Kameyama Y, Kasagi T, Kudo G
    • Journal Title

      Journal of Evolutionary Biology 21

      Pages: 588-597

    • Peer Reviewed
  • [Presentation] ツガザクラ属植物における種間雑種の形成と定着2009

    • Author(s)
      亀山慶晃,工藤岳
    • Organizer
      日本生態学会大会(盛岡)
    • Year and Date
      20090300
  • [Presentation] 雪解け傾度を反映したアオノツガザクラの繁殖様式と集団維持2009

    • Author(s)
      亀山慶晃,工藤岳
    • Organizer
      日本生態学会大会(盛岡)
    • Year and Date
      20090300
  • [Presentation] 高山帯のユニークな生態系構造と高山植物群集の気候変動への応答2009

    • Author(s)
      工藤岳,亀山慶晃
    • Organizer
      日本生態学会大会(盛岡)
    • Year and Date
      20090300
  • [Presentation] Flowering phenology and pollination success : Importance of mating system and landscape features2008

    • Author(s)
      Kudo G, Kameyama Y, Hirao AS
    • Organizer
      The Ecology and Evolution of Plant-Pollinator Interactions
    • Place of Presentation
      Milwaukee,Wisconsin, USA
    • Year and Date
      20080800

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Published: 2010-06-10   Modified: 2016-04-21  

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