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Molecular Phylogeny of the Wild Populations of Medaka, Oryzias latipes

Research Project

Project/Area Number 03640637
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 動物形態・分類学
Research InstitutionThe Tokyo Metropolitan Institute of Medical Science

Principal Investigator

SAKAIZUMI Mitsuru  The Tokyo Metropolitan Institute of Medical Science, Department of Laboratory Animal Science, Researcher, 実験動物研究部門, 研究員 (40175360)

Project Period (FY) 1991 – 1992
Project Status Completed (Fiscal Year 1992)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1992: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1991: ¥1,400,000 (Direct Cost: ¥1,400,000)
KeywordsOryzias latipes / medaka / mitochondrial DNA / RFLP / sequence data / 12srDNA / cytochrome b / ND4 / D-1oop / 制限酵素
Research Abstract

Oryzias latipes includes four genetically distinct groups, the Northern population, the Southern population, the East Korean population and the china-West Korean population on the basis of electrophoretic data.
The Northern population and the Southern population were distinguished by RFLP (using eight 6-base enzymes) of mitochondrial DNA. The former included 10 haplotypes that were composed of a few groups closely related to each other. The latter included 89 haplotypes that could be divided into several groups with a lower level of difference. Sequence divergence was estimated to be 10.1% between a "northern" haplotype (haplotype 1) and a "southern" haplotype (haplotype 22).
This value was thought to be very high as those between intraspecific haplotypes.
We made two libraries of wkole mitochondrial DNA from a "northern" haplotype (1) and a "southern" haplotype (32). Three different regions encoding 12srRNA, cyt. b and ND4 were sequenced. The sequence differences between "northern" and " southern" haplotypes were 3.9% (15/586) in 12srDNA, 11.6% (64/554) in cyt. b and 9.9% (22/223) in ND4 region. Although the values differed among different regions, sequence divergence values were close to the estimate (10.1%) from RFLP analyses.
These results indicated that the Northern population and the Southern population are highly differentiated from a view point of molecular phylogeny.

Report

(3 results)
  • 1992 Annual Research Report   Final Research Report Summary
  • 1991 Annual Research Report
  • Research Products

    (20 results)

All Other

All Publications (20 results)

  • [Publications] SAKAIZUMI M.: "Electrophoretic studies of meiotic segregation in inter-and intraspecific hybrids among East Asian species of thi genus Oryzias (Pices:Oryziatidae)." J.Exp.Zool.264. 85-92 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] HAMAGUCHI S: "Sexually differentiated mechanisms of sterility in inter-specifichybrids between Oryzias latipes and O.curvinotus." J.Exp.Zool.263. 323-329 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] KURITA J.: "Production of trigenomic allotriploid medaka Oryzias latipes sinensis-curvinotus-celebensis." Nippon Suisan Gakkaishi. 58. 6851-6855 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] KURITA J.: "Productionof amphidiploid medaka Oryzias 2 latipes sinensis-2 curvinotus by gyno-genesis wirh retention of the second polar body." Nippon Suisan Gakkaishi. 59. 373 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] SAKAIZUMI M.: "Unreduced diploid eggs produced by interspecific hybrids between Oryzias latipes and O.curvinotus." J.Exp.Zool.IN PRESS

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 今井 喜美子: "ミトコンドリアDNAからみたメダカの系統." 千葉大海洋センター年報. 12. 69-74 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Hamaguchi,Satoshi: "Sexually differentiated mechanisms of sterility in interspecific hybrids between Oryzias latipes and O. curvinotus" J.Exp.Zool.263. 323-329 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Sakaizumi,Miotsur: "Electrophoretic studies of meiotic segregation in inter- and intraspecific hybrids among East Asian species of the genus Oryzias (Pisces : Oryziatidae)" J.Exp.Zool.264. 85-92 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Kurita,Jun: "Production of trigenomic allotriploid medaka Oryzias latipes sinensis- curvinotus- celebensis" Nippon Suisan Gakkaishi. 58. 2311-2314 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Imai,Kimiko: "Mitochondrial DNA polymorphisms in wild populations of the medaka, Oryzias latip (In Japanese)" Ann.Rep.Marine Ecosys.Res Center, Chiba Univ.12. 69-74 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Kurita,Jun: "Production of amphidiploid medaka Oryzias 2 latipes sinensis-2 curvinotus by gyno- genesis with retention of the second polar body" Nippon Suisan Gakkaishi. 59. 373 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Sakaizumi,M., Shimizu,Y., Matsuzaki,T., and Hamaguchi,S.: "Unreduced diploid eggs produced by interspecific hybrids between Oryzias latipes and O. curvinotus" J.Exp.Zool.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Sakaizumi M.: "Electrophoretic studies of meiotic segregation in inter-and intraspecific hybrids among East Asian species of the genus Oryzias(Pices:Oryziatidae)." J.Exp.Zool.264. 85-92 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Hamaguchi S.: "Sexually differentiated mechanisms of sterility in inter-specifichybrids between Oryzias latipes and O.curvinotus." J.Exp.Zool.263. 323-329 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Kurita J.: "Production of trigenomic allotriploid medaka Oryzias latipes sinensis-curvinotus-celebensis." Nippon Suisan Gakkaishi. 58. 6851-6855 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Kurita J.: "Productionof amphidiploid medaka Oryzias 2 latipes sinensis-2 curvinotus by gyno-genesis with retention of the second polar body." Nippon Suisan Gakkaishi. 59. 373 (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] Sakaizumi M.: "Unreduced diploid eggs produced by interspecific hybrids between Oryzias latipes and O.curvinotus." J.Exp.Zool.

    • Related Report
      1992 Annual Research Report
  • [Publications] 今井 喜美子: "ミトコンドリアDNAからみたメダカの系統" 千葉大海洋センター年報. 12. 69-74 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Sakaizumi,M.,Shimizu,Y.,Hamaguchi,S.: "Electrophoretic studies of meiotic segregation in inter- and intraspecifec hybrids among East Asian species of the genus Oryzias." J.Exp.Zool.(1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] Hamaguchi,S.,Sakaizumi,M.: "Sexually differentiated mechanisms of sterility in interspecifichybrids between Oryzias latipes and O.curvinotus." J.Exp.Zool.(1992)

    • Related Report
      1991 Annual Research Report

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Published: 1991-04-01   Modified: 2016-04-21  

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