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2009 Fiscal Year Final Research Report

Genetic adaptation of tree populations to natural selection

Research Project

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Project/Area Number 19380081
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 林学・森林工学
Research InstitutionThe University of Tokyo

Principal Investigator

GOTO Susumu  The University of Tokyo, 大学院・農学生命科学研究科, 准教授 (60323474)

Co-Investigator(Kenkyū-buntansha) KITAMURA Keiko  独立行政法人森林総合研究所, 北海道支所森林育成研究グループ, 研究員 (00343814)
Project Period (FY) 2007 – 2009
Keywords森林生態 / 保護 / 保全 / 適応的遺伝子
Research Abstract

Natural populations of Picea glehnii distributes in various altitudes from lowland nemoral (300m asl.) to alpine zone (1400m asl.) in central Hokkaido. We investigated morphological and physiological traits of needles from these natural populations ranging from 300m to 1400m asl.Clines along the altitude were detected in both morphological (needle density and thickness) and physiological traits (the ratio of chlorophyll a+b / nitrogen). Since the similar clines were observed in altitudinal transplant replications (530, 730, 930, and 1100m asl.), phenotypic plasticity might be one of the causes of this altitudinal differences. We found that Abies sachalinensis showed strong local adaptation to the original altitudinal zones in the same mountainous slope through the reciprocal transplant experiments. Therefore, we concluded that the extent of genetic adaptation to altitude of P. glehnii was lower than that of A. sachalinensis. Subsequently, we used microsatellite and allozyme markers, in order to evaluate genetic differentiation among populations of P. glehnii and to detect non-neutral loci against natural selection along the altitude. The extent of genetic differentiation obtained by microsatellite markers was lower than that by allozyme markers. None of microsatellite loci were related to the environment. In contrast, certain allozyme variation was detected only in alpine population. Previous studies had revealed that seedling growth from dwarf populations in alpine zones was significantly lower than that from middle-altitude populations. These findings indicated that dwarf populations in alpine zones might be different ecotype from other populations of P. glehnii in central Hokkaido.

  • Research Products

    (8 results)

All 2010 2009 2008

All Journal Article (2 results) Presentation (3 results) Book (3 results)

  • [Journal Article] Outbreeding depression caused by intraspecific hybridization between local and non-local genotypes in Abies sachalinensis.2009

    • Author(s)
      Goto S, Iijima H, Ogawa H, Ohya K.
    • Journal Title

      Restoration Ecology.

    • URL

      doi:10.1111/j.1526-100X.2009.00568.x

  • [Journal Article] Effects of landscape and demographic history on genetic variation in Picea glehnii at the regional scale.2009

    • Author(s)
      Goto S, Tsuda Y, Koike Y, Lian C, Ide Y.
    • Journal Title

      Ecological Research 24(6)

      Pages: 1267-1277

  • [Presentation] 種子産地の環境がアカエゾマツ次世代苗の生存と成長に及ぼす影響~湿地産vs高標高産の産地試験から~.2010

    • Author(s)
      後藤晋・小川瞳・石塚航・木村徳志・松井理生・岡村行治・大屋一美・道上昭夫
    • Organizer
      日本森林学会
    • Place of Presentation
      筑波大学
    • Year and Date
      20100300
  • [Presentation] 標高の違いがアカエゾマツの針葉形態・生理・遺伝構造に与える影響.2009

    • Author(s)
      飯島勇人・北村系子・石塚航・後藤晋
    • Organizer
      日本生態学会
    • Place of Presentation
      岩手大学
    • Year and Date
      20090300
  • [Presentation] 高山・湿地・火山礫上に生育するアカエゾマツ針葉の形態および生理特性変異.2008

    • Author(s)
      飯島勇人・北村系子・後藤晋
    • Organizer
      日本森林学会
    • Place of Presentation
      東京農工大学
    • Year and Date
      20080300
  • [Book] ジーンフロー研究の成果をどのように森林管理に活かすか?北の森づくりQ&A北方林業会そう率60周年記念誌、、201ページ(北方林業会編)2009

    • Author(s)
      後藤晋
    • Total Pages
      82-85
  • [Book] ウダイカンバ・シラカンバ・ダケカンバ. 北海道における林木育種と森林遺伝資源(北海道林木育種協会編)2008

    • Author(s)
      後藤晋
    • Total Pages
      149-158
  • [Book] ヤチダモ・アオダモ. 北海道における林木育種と森林遺伝資源(北海道林木育種協会編)2008

    • Author(s)
      後藤晋
    • Total Pages
      181-188

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Published: 2011-06-18   Modified: 2016-04-21  

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