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

2011 Fiscal Year Final Research Report

Systemic search for genes that confer tolerance to chronic cold exposure in Drosophila

Research Project

  • PDF
Project/Area Number 22659048
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeSingle-year Grants
Research Field Environmental physiology (including Physical medicine and Nutritional physiology)
Research InstitutionKyoto University

Principal Investigator

UMEDA Masato  京都大学, 大学院・工学研究科, 教授 (10185069)

Co-Investigator(Kenkyū-buntansha) JUNI Naoto  京都大学, 大学院・工学研究科, 研究員 (90572199)
Project Period (FY) 2010 – 2011
Keywords低温耐性 / 遺伝子 / ショウジョウバエ / エネルギー代謝 / ミトコンドリア / 酸化的リン酸化 / カロリー制限
Research Abstract

Earth has experienced cooling and warming cycles, and organisms exposed to these climate changes either were exterminated or adapted to survive. The genetic variants that confer heat-or cold-resistance to organisms must be selected during the period of extreme climate change, with these mutant populations then spreading over geographic regions that the ancestral population would never have been able to inhabit. The present divergence of wildlife may in part result from such adaptive changes in the genome.
Drosophila melanogaster, a useful model organism in genetics, has its origin in tropical Africa, and has established its status as a cosmopolitan by acquisition of cold resistance in evolution. In this study we searched for the genes that confer tolerance to chronic cold exposure, and found that the suppression of energy metabolism, especially of mitochondrial oxidative phosphorylation, conferred a significant increase in cold tolerance. Caloric restriction also significantly enhanced the cold tolerance. We discuss possible mechanisms underlying the effect of energy metabolism on cold tolerance.

  • Research Products

    (11 results)

All 2012 2011 2010

All Journal Article (3 results) Presentation (5 results) Book (3 results)

  • [Journal Article] Lipidpolarity is maintained in absence of tightjunctions2012

    • Author(s)
      Ikenouchi, J., Suzuki, M., Umeda, K., Ikeda, K., Taguchi, R., Kobayashi, T., Sato SB, Kobayashi. T, Stolz DB., Umeda, M.
    • Journal Title

      J Biol Chem

      Volume: 287(12) Pages: 9525-33

  • [Journal Article] FRMD4Aregulates epithelial polarity by connectingArf6 activation with the PAR complex2010

    • Author(s)
      Ikenouchi, J., Umeda, M.
    • Journal Title

      Proc. Natl. Acad. Sci. USA

      Volume: 107 Pages: 748-753

  • [Journal Article] リン脂質フリッパーゼによる「脂質場」の形成と細胞膜ダイナミクス2010

    • Author(s)
      山本真寿、加藤詩子、梅田真郷
    • Journal Title

      実験医学

      Volume: 28(20) Pages: 3292-3299

  • [Presentation] Membrane lipid control ofbehavioral thermoregulation and energymetabolism in Drosophila melanogaster2012

    • Author(s)
      Masato Umeda
    • Organizer
      Gordon Research Conferences in 2012
    • Place of Presentation
      New Hampshire
    • Year and Date
      20120717-22
  • [Presentation] リン脂質フリッパーゼによる膜脂質ドメインの形成とその生物学的意義2011

    • Author(s)
      梅田真郷、加藤詩子
    • Organizer
      第88回日本生理学会大会・第116回日本解剖学会総会・全国学術集会合同大会
    • Place of Presentation
      横浜
    • Year and Date
      2011-03-29
  • [Presentation] An approachfor Lipid biology using Drosophilamelanogaster2010

    • Author(s)
      Utako Kato, Masato Umeda
    • Organizer
      第33回分子生物学会年会
    • Place of Presentation
      神戸
    • Year and Date
      2010-12-07
  • [Presentation] 膜リン脂質のダイナミズムとその生物機能2010

    • Author(s)
      梅田真郷
    • Organizer
      第23回植物脂質シンポジウム
    • Place of Presentation
      京都
    • Year and Date
      2010-11-26
  • [Presentation] Molecular mechanisms linkingenergy homeostasis to behavioralthermoregulation in Drosophila2010

    • Author(s)
      梅田真郷
    • Organizer
      第87回日本生理学会大会シンポジウム
    • Place of Presentation
      盛岡
    • Year and Date
      2010-05-19
  • [Book] 生体膜における脂質環境・ラフト、トランスポートソームの世界-膜輸送研究の源流から未来へ2011

    • Author(s)
      梅田真郷
    • Total Pages
      359
    • Publisher
      京都廣川書店
  • [Book] 生きた膜を支える脂質の分子運動、生命誌年刊号めぐる2010

    • Author(s)
      梅田真郷
    • Total Pages
      134-141
    • Publisher
      新曜社
  • [Book] 生体膜における脂質分子の局在および動態のイメージング、化学フロンティア生命現象を理解する分子ツール2010

    • Author(s)
      池ノ内順一、梅田真郷
    • Total Pages
      25-40
    • Publisher
      化学同人

URL: 

Published: 2013-07-31  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi