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Study of Chattonella life cycle by using microsatellite markers

Research Project

Project/Area Number 19580225
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field General fisheries
Research InstitutionNational Institute for Environmental Studies

Principal Investigator

KAWACHI Masanobu  National Institute for Environmental Studies, 生物圏環境研究領域, 主任研究員 (80311322)

Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2008: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2007: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords水産学 / プランクトン / マイクロサテライト / 赤潮 / 生活史 / Chattonella / マイクロサテライトマーカー / 有害植物プランクトン / ヘテロ接合体 / シスト / 水産養殖 / 全ゲノム増幅
Research Abstract

Chattonella3種115株の核相解析を行った結果、すべてがヘテロ接合体であり、栄養細胞は接合(有性生殖)で生じたと考えられた。また小型細胞の細胞レベルの核相解析を行った結果、ヘテロ接合体とその半数体の2タイプの存在が明らかになった。減数分裂で小型細胞が形成され、小型細胞同士の接合の結果としてシストが形成される可能性に加えて、ヘテロ接合体の小型細胞から直接シストが形成される経路が推察された。

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (7 results)

All 2009 2007 Other

All Journal Article (5 results) (of which Peer Reviewed: 3 results) Presentation (1 results) Remarks (1 results)

  • [Journal Article] Taxonomic revision of Chattonella antiqua, C. marina and C. ovata (Raphidophyceae) based on their morphological characteristics and genetic diversity2009

    • Author(s)
      M. Demural, F. Kasai, M. M. Watanabe, M. Kawachi
    • Journal Title

      Phycologia

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mitochondrial group II introns in raphidophycean flagellates Chattonella species suggesting a diatom-to-Chattonella lateral group II intron transfer2009

    • Author(s)
      Kamikawa, I. Masuda, M. Demura, K. Oyama, S. Yoshimatsu, M. Kawachi, Y. Sako
    • Journal Title

      Protist

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of microsatellite markers for the red tide-forming harmful species Chattonella antiqua,C.marina,and C.ovata(Raphidophyceae)2007

    • Author(s)
      Demura, M, Kawachi, M., Kunugi, M., Nishizawa, T., Kasai, F., Watanabe, M.M.
    • Journal Title

      Molecular Ecology Notes 7

      Pages: 315-317

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dynamics of microorganisms in ballast tank and the problems of the transboundarv movement2007

    • Author(s)
      Kawachi, M., Demura, M., Noel, M.-H., Tomaru, T., Omura, T
    • Journal Title

      Aquabiology 29

      Pages: 204-211

    • Related Report
      2007 Annual Research Report
  • [Journal Article] Taxonomic revision of Chattonella antiqua, C. marina and C. ovata (Raphidophyceae) based on their morphological characteristics and genetic diversity.

    • Author(s)
      Demura, M., Noel, M.-H., Kasai, F., Watanabe, M. M. and Kawachi, M.
    • Journal Title

      Phycologia. (in press)

    • Related Report
      2008 Final Research Report
  • [Presentation] マイクロサテライトマーカーを用いたChattonella antiqua(ラフィド藻綱)における有性生殖の検証2007

    • Author(s)
      出村幹英・河地正伸・笠井文絵・渡邉信
    • Organizer
      日本藻類学会第31回大会
    • Place of Presentation
      神戸大学
    • Year and Date
      2007-03-25
    • Related Report
      2008 Final Research Report
  • [Remarks]

    • URL

      http://www.nies.go.jp/biology/lab/microbialeco/kawachi/kawachi.htm

    • Related Report
      2007 Annual Research Report

URL: 

Published: 2007-04-01   Modified: 2016-04-21  

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