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突然変異体と三次元細胞系譜解析とを用いた性分化過程細胞相互作用解析

Research Project

Project/Area Number 19040027
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Biological Sciences
Research InstitutionNational Institute for Basic Biology

Principal Investigator

田中 実  National Institute for Basic Biology, 生殖遺伝学研究室, 准教授 (80202175)

Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥6,700,000 (Direct Cost: ¥6,700,000)
Fiscal Year 2008: ¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2007: ¥3,300,000 (Direct Cost: ¥3,300,000)
Keywords性分化 / 生殖腺 / メダカ / 生殖顆粒 / vasa / nanos / 生殖細胞 / tudor / 性転換 / 突然変異体 / 細胞系譜 / ミュラー管因子受容体
Research Abstract

細胞系譜を解析した結果、前年度にメダカ卵巣のニッチ構造と予期される組織構造を見いだした。メダカで発現するnanos遺伝子ファミリーを体系的に解析したところ、そのうちのひとつがニッチ構造の特定生殖細胞に発現していることが見いだされた。その細胞が生殖幹細胞であるかを特定するために、BrdU取込み実験を行ない、分裂の遅い幹細胞の特徴を持つ細胞であることが判明した(Aoki, et.al., Zool. Sci.2009)。
また、生殖細胞に発現する3種の遺伝子産物(TUDOR, NANOS3, OLVAS)の局在を調べ、その局在様式の違いにより生殖細胞の分化状態を識別可能であることを見いだした。全ての段階において、生殖顆粒に3つの蛋白質は局在していたが、生殖腺に入るまではリング用構造をとり、生殖腺に入ってからは球状構造に変化していた。さらに生殖細胞がシスト分裂を始めると局在位置が核膜に近づき、減数分裂期になると核膜に接する大きな顆粒として存在した(Aoki, et.al. Dev. Dyn. 2008)。

Report

(2 results)
  • 2008 Annual Research Report
  • 2007 Annual Research Report
  • Research Products

    (29 results)

All 2009 2008 2007 Other

All Journal Article (13 results) (of which Peer Reviewed: 13 results) Presentation (14 results) Remarks (2 results)

  • [Journal Article] Expression and syntenic analysis of four nanos genes in medaka2008

    • Author(s)
      Aoki, Y., et.al.
    • Journal Title

      Zool. Sci. 26

      Pages: 112-118

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Distinct contribution of CXCR 4 b and CXCR 7 / RDC1 receptor systems in regulation of PGC migration revealed by medaka mutants, kazura and yanagi2008

    • Author(s)
      Sasado, T., et.al.
    • Journal Title

      Dev. Biol. 320

      Pages: 328-339

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Stress-induced environmental changes in a single cell as revealed by fluorescence lifetime imaging2008

    • Author(s)
      Nakabayashi, T., et.al.
    • Journal Title

      Photonchem. Photobiol. Sci. 7

      Pages: 671-674

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cross talk between germ cells and gonadal somatic cells is critical for sex differentiation of the gonads in the teleost fish, medaka (Oryzias latipes)2008

    • Author(s)
      Tanaka, M., et.al.
    • Journal Title

      Develop. Growth Differ. 50

      Pages: 273-278

    • NAID

      10021096435

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Generation of transgenic medaka using modified bacterial artificial chromosome2008

    • Author(s)
      Nakamura, S., et.al.
    • Journal Title

      Develop. Growth Differ. 50

      Pages: 415-417

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Temporal and spatial localization of three germline-specific proteins in medaka2008

    • Author(s)
      Aoki, Y., et.al.
    • Journal Title

      Dev. Dyn. 278

      Pages: 800-807

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Sox9b/sox9a2-EGFP transgenic medaka reveals the morphological reorganization of the gonads and a common precursor of both the female and male supporting cells.2008

    • Author(s)
      Nakamura, S.
    • Journal Title

      Mol.Reprod.Dev. 75

      Pages: 472-476

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Analysis of the molecular dynamics of medaka nuage proteins by fluorescence correlation spectroscopy and fluorescence recovery after photobleaching2008

    • Author(s)
      Nagao, I.
    • Journal Title

      FEBS J. 275

      Pages: 341-349

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Germ cells are essential for sexual dimorphism in the medaka gonad.2007

    • Author(s)
      Kurokawa, H.
    • Journal Title

      Proc.Acad.Natl.Sci.USA 104

      Pages: 16958-16953

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The hotei mutation of medaka in the anti-Mullerian hormone receptor causes the dysregulation of germ cell and sexual development.2007

    • Author(s)
      Morinaga, C.
    • Journal Title

      Pron.Acad.Natl.Sci.USA 104

      Pages: 9691-9696

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Proliferation of germ cells during gonadal sex differentiation in medaka : insights from germ cell depleted mutant zenzai.2007

    • Author(s)
      Saito, D.
    • Journal Title

      Dev.Biol. 310

      Pages: 280-290

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Duplicated Abd-B class genes in medaka hoxAa and hoxAb clusters exhibit different expression patterns in pectoral fin buds2007

    • Author(s)
      Takamatsu, N
    • Journal Title

      Dev.Genes Evol 217

      Pages: 263-273

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Proliferation of germ cells during gonadal sex differentiation in medaka : insights from germ cell depleted mutant zenzai.2007

    • Author(s)
      Hano, T.
    • Journal Title

      Environ.Sci.Tech. 310

      Pages: 280-290

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] Roles of Germ Cells on Sexual Dimorphism of Gonads2009

    • Author(s)
      Tanaka, M.
    • Organizer
      INSERM Seminar
    • Place of Presentation
      INSERM. Clamart, France
    • Year and Date
      2009-03-23
    • Related Report
      2008 Annual Research Report
  • [Presentation] Relations between Germ Cells and Somatic Cells during the process of Sex Differentiation of Gonads2009

    • Author(s)
      Tanaka, M.
    • Organizer
      Graduiertenlolleg
    • Place of Presentation
      Wurzburg Univ. Germany(invited)
    • Year and Date
      2009-02-18
    • Related Report
      2008 Annual Research Report
  • [Presentation] Medaka Model Reveals Sexual Bipotentiality of Gonads2008

    • Author(s)
      Tanaka, M.
    • Organizer
      The 2008 General Seminar, The united Graduate School of Agricultural Sciences, Kagoshima Univ.
    • Place of Presentation
      Naha, OKINAWA(invited)
    • Year and Date
      2008-11-05
    • Related Report
      2008 Annual Research Report
  • [Presentation] Modes, location and function of germ cells in the ovary of teleost fish, medaka2008

    • Author(s)
      Tanaka, M.
    • Organizer
      Cold Spring Habour Meeting "Germ Cells"
    • Place of Presentation
      New York(Talk)
    • Year and Date
      2008-10-03
    • Related Report
      2008 Annual Research Report
  • [Presentation] Importance of Germ Cells in Sex Differentiation2008

    • Author(s)
      Tanaka, M.
    • Organizer
      International Symposium for Gonad and Brain Sex Differentiation
    • Place of Presentation
      Fukuoka(invited)
    • Year and Date
      2008-09-15
    • Related Report
      2008 Annual Research Report
  • [Presentation] 性はだれでも変わりうる?〜性分化に影響を与える生殖細胞(招待)2008

    • Author(s)
      田中実
    • Organizer
      日本進化学会
    • Place of Presentation
      東京大学駒場キャンパス
    • Year and Date
      2008-08-23
    • Related Report
      2007 Annual Research Report
  • [Presentation] Importance of Germ Cells for Sex Differentiation2008

    • Author(s)
      Tanaka, M.
    • Organizer
      International Symposium Sex Determination and Gametogenesis in Fish
    • Place of Presentation
      Honolulu, Hawaii(invited)
    • Year and Date
      2008-05-30
    • Related Report
      2008 Annual Research Report
  • [Presentation] Importance of Germ Cells on Sexual Differentiation of Medaka2008

    • Author(s)
      Tanaka, M.
    • Organizer
      The 54 th NIBB Conference `New Frontiers for the Medaka Model-Genome, Bioresources and Biology'
    • Place of Presentation
      Okazaki Conference Center
    • Year and Date
      2008-02-28
    • Related Report
      2007 Annual Research Report
  • [Presentation] 性はどうやってできていくの〜光るメダカの観察から〜(招待)2008

    • Author(s)
      田中実
    • Organizer
      研究者と会おう(日本科学未来館)
    • Place of Presentation
      日本科学未来館
    • Year and Date
      2008-02-17
    • Related Report
      2007 Annual Research Report
  • [Presentation] 生殖細胞は性的二型形成に重要である2007

    • Author(s)
      田中実
    • Organizer
      日本発生生物学会秋季シンポジウム
    • Place of Presentation
      岡崎コンファレンスセンター
    • Year and Date
      2007-11-06
    • Related Report
      2007 Annual Research Report
  • [Presentation] バイオイメージングの最前線(招待)2007

    • Author(s)
      田中実
    • Organizer
      日本動物学会第78回大会シンポジウム
    • Place of Presentation
      弘前大学
    • Year and Date
      2007-09-21
    • Related Report
      2007 Annual Research Report
  • [Presentation] 生殖腺形成・性転換を引き起こす突然変異体メダカhoteiについて(招待)2007

    • Author(s)
      田中実
    • Organizer
      国立遺伝学研究所研究会
    • Place of Presentation
      国立遺伝学研究所
    • Year and Date
      2007-07-24
    • Related Report
      2007 Annual Research Report
  • [Presentation] 生殖腺性分化における生殖細胞・体細胞間のシグナルネットワーク(招待)2007

    • Author(s)
      田中実
    • Organizer
      第40回日本発生生物学会・第59回細胞生物学会合同大会
    • Place of Presentation
      福岡国際会議場
    • Year and Date
      2007-05-29
    • Related Report
      2007 Annual Research Report
  • [Presentation] Amh receptor gene regulating germ cell proliferation and sex differentiation2007

    • Author(s)
      Tanaka, M.
    • Organizer
      The 5th EMBL/NIBB meeting
    • Place of Presentation
      Okazaki Conference Center
    • Year and Date
      2007-05-24
    • Related Report
      2007 Annual Research Report
  • [Remarks]

    • URL

      http://www.nibb.ac.jp/reprogenetics/

    • Related Report
      2008 Annual Research Report
  • [Remarks]

    • URL

      http://www.nibb.ac.jp/reprogenetics/

    • Related Report
      2007 Annual Research Report

URL: 

Published: 2007-04-01   Modified: 2018-03-28  

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