• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Effects of sex change in maple trees on forest regeneration

Research Project

Project/Area Number 20580159
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Forest science
Research InstitutionOsaka City University

Principal Investigator

NANAMI Satoshi  大阪市立大学, 理学(系)研究科(研究院), 准教授 (70326247)

Co-Investigator(Kenkyū-buntansha) ITOH Akira  大阪市立大学, 大学院理学研究科, 教授 (40274344)
Project Period (FY) 2008-04-08 – 2013-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2008: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords森林 / 生態 / 個体群 / 繁殖 / 更新動態 / 性表現 / 樹木 / 雌雄異株 / 性転換 / 遺伝子流動 / カエデ属 / マイクロサテライト解析 / 実生 / 成長速度 / 種子散布
Research Abstract

The spatial genetic structure, gene flow through pollination and relatedness between parents of seeds were investigated in an Acer rufinerve population, a dioecious tree. The efficiency of the sex expression, dioecy, was evaluated by estimating selfing rate of bisexual A. rufinerve trees. The A. rufinerve population has a significant spatial genetic structure. The spatially close trees tended to have a similar genotypes. The short-distant gene flows through pollination were dominant, and selfing rate of bisexual trees was high (75%). It means self incompatibility was low in this species. The sex expression, dioecy, would be efficient in A. rufinerve to avoid selfing and inbreeding depression.

Report

(7 results)
  • 2013 Final Research Report ( PDF )
  • 2012 Annual Research Report
  • 2011 Annual Research Report
  • 2010 Annual Research Report   Self-evaluation Report ( PDF )
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (4 results)

All 2011 2010

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (1 results) Book (1 results)

  • [Journal Article] Seasonal patterns of stem diameter growth in woody species with different life forms and geographical distributions at Mt. Mikasa, Nara, Japan.2010

    • Author(s)
      Nanami, S., Kswaguchi, H., Yamakura, T.
    • Journal Title

      Applied Forest Science 19

      Pages: 27-34

    • NAID

      110009420188

    • Related Report
      2010 Self-evaluation Report
    • Peer Reviewed
  • [Journal Article] Seasonal patterns of stem diameter growth in woody species with different life forms and geographical distributions at Mt.Mikasa, Nara, Japan.2010

    • Author(s)
      Nanami, S., Kswaguchi, H., Yamakura, T.
    • Journal Title

      Applied Forest Science

      Volume: 19 Pages: 27-34

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] 木本種の肥大成長の季節パターンと生活形および地理分布との関係2010

    • Author(s)
      名波哲、川口英之、山倉拓夫
    • Organizer
      日本森林学会、第120回日本森林学会大会
    • Place of Presentation
      京都
    • Year and Date
      2010-03-27
    • Related Report
      2010 Self-evaluation Report
  • [Book] 森林生態学2011

    • Author(s)
      名波哲(分担)
    • Total Pages
      293
    • Publisher
      共立出版
    • Related Report
      2011 Annual Research Report

URL: 

Published: 2008-04-01   Modified: 2019-07-29  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi