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Study for the Conservation of Aquatic Organisms as Genetic Resources

Research Project

Project/Area Number 08406014
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field General fisheries
Research InstitutionTohoku University

Principal Investigator

FUJIO Yoshihisa  Faculty of Agriculture Tohoku University, Professor, 農学部, 教授 (80023422)

Co-Investigator(Kenkyū-buntansha) IKEDA Minoru  Faculty of Agriculture Tohoku University, Instructer, 農学部, 教務職員 (70232204)
NAKAJIMA Masamichi  Faculty of Agriculture Tohoku University, Associate Professor, 農学部, 助教授 (20192221)
KIJIMA Akihiro  Faculty of Agriculture Tohoku University, Professor, 農学部, 教授 (50161451)
Project Period (FY) 1996 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥18,000,000 (Direct Cost: ¥18,000,000)
Fiscal Year 1998: ¥5,600,000 (Direct Cost: ¥5,600,000)
Fiscal Year 1997: ¥5,700,000 (Direct Cost: ¥5,700,000)
Fiscal Year 1996: ¥6,700,000 (Direct Cost: ¥6,700,000)
Keywordsgenetic resource / natural population / cultured population / population genetics / isozyme analysis / DNA analysis / genetic divergence / genetic variability / 野生集団 / アイソザイム分布 / 系統 / 自然集団 / RAPD分析 / 耐性 / 遺伝的組成
Research Abstract

For conservation of aquatic organisms, genetic diversity in natural and cultured populations. The results are summarized as follows :
1) Genetic divergence is dependent on geographical distribution with reproductive isolation.
2) The cultured populations are genetically more diversified than the natural populations.
3) The amount of genetic variation as measured by average heterozygosity shows that (1) different species have significantly different amount of genetic variation, (2) populations within a species have remarkably similar levels of heterozygodity, and (3) management procedure for culture have resulted in the loss or increase of genetic variation in each cultured population.
4) Although, the recessive deleterious alleles in stoch of homozygotes are eliminated by natural selection, they are mostly present in the state of heterozygotes within a population.

Report

(4 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • 1996 Annual Research Report
  • Research Products

    (34 results)

All Other

All Publications (34 results)

  • [Publications] Takahito Shikano: "Difference in osmoregulatory function in sea water among strains of the guppy Poecilia reticulate." Fisheries Science. 63. 69-72 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Yoshihisa Fujio: "Selection and inbreeding depression in maintenance of a stock population of the apple snail Pomacea canaliculata." Fisheries Science. 63. 368-371 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Masatsugu Takano: "Biochemical and morphological evidence of two sympatric forms, interpreted as sibling species in the estuarine grapsid crab Hemigrapsus penicillatus (De Haan)." Benthos Research. 52. 111-117 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Takashi Chiyokubo: "Genetic features of salinity tolerance in wild and domestic guppies (P.reticulate)." Aquaculture. 167. 339-348 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Anna Alexandrovna Barinova: "Genetic variability and differentiation of both cultured strains and natural populations in the guppy Poecilia reticulate." Fisheries Science. 64. 898-902 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Minoru Ikeda: "Genetic variability and differentiation in goldfish breeds based on isozyme variations." Fisheries Science. 65. (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 藤尾芳久: "水温適応性, 水産育種に関わる形質の発現と評価, 水産学シリーズ117, 恒星社厚生閣" 藤尾芳久・谷口順彦 編, 67-75 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 木島明博: "形態形質. 水産育種に関わる形質の発現と評価, 水産学シリーズ117, 恒星社厚生閣" 藤尾芳久・谷口順彦 編, 29-38 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Takahito Shikano: "Difference in osmoregulatory function in sea water among strains of the guppy Poecilia reticulata" Fisheries Science. 63. 69-72 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Yoshihisa Fujio: "Selection and inbreeding depression in maintenance of a stock population of the apple snail Pomacea canaliculata" Fishries Science. 63. 368-371 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Masatsugu Takano: "Biochemical and morphological evidence of two sympatric forms, interpreted as sibling species in the estuarine grapsid crab Hemigrapsus penicillatus (De Haan)" Benthos Research. 52. 111-117 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Takashi Chiyokubo: "Genetic features of salinity tolerance in wild and domestic guppies (Poecilia reticulata)" Aquaculture. 167. 339-348 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Anna Alexandrovna Barinova: "Genetic variability and differentiation of both cultured strains and natural population in the guppy Poecilia reticulata" Fisheries Science. 64. 898-902 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Minoru Ikeda: "Genetic variability and differentiation in goldfish breeds based on isozyme variations" Fisheries Science. 65(in Press). (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Takeharu Takase: "Detection of heat stability variations in GPI isozymes of goldfish and crucian carp." Fisheries Science. 64・1. 31-34 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Takahito Shikano: "Relationships of salinity tolerance to immunolocalization of Na+,K+-ATPase in the gill epithelium during seawater and freshwater adaptation of the guppy P.reticulata." Zoological Science. 15・1. 35-41 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 中嶋正道: "グッピーにおけるコブラ斑の遺伝支配と発現." 水産育種. 26. 17-25 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Takashi Chiyokubo: "Genetic features of salinity tolerance in wild and domestic guppies (P.reticulata)." Aquaculture. 167. 339-348 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Anna Alexandrovna Barinova: "Genetic variability and differentiation of both cultured strains and natural populations in the guppy Poecilia reticulata." Fisheries Science. 64・6. 898-902 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Minoru Ikeda: "Genetic variability and differentiation in goldfish breeds based on isozyme variations." Fisheries Science. 65・2. (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] 藤尾芳久: "水温適応性,「水産育種に関わる形質の発現と評価」,水産学シリーズ117,恒星社厚生閣" 藤尾芳久・谷口順彦, 67-75 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 木島明博: "形態形質,「水産育種に関わる形質の発現と評価」,水産学シリーズ117,恒星社厚生閣" 藤尾芳久・谷口順彦, 29-38 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Yoshihisa Fujio: "Selection and inbreeding depression in maintenance of a stock population of apple snail Pomecea canaliculate." Fishries Science. 63・3. 368-371 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 菊地美保: "アイソザイムおよびRAPD分析によるイワナ集団の遺伝的変異性と遺伝的分化." 水産育種. 25. 27-36 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 劉 思陽: "アイソザイム分析によるヒラメ人工種苗の遺伝的特徴。" 水産育種. 25. 49-55 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Ana Maria Vergara Mellad: "Genetic structure of the Japanese scallop population in Mutsu Bay." Fish Genetics and Breeding Science. 25. 65-72 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Takahito Shikano: "Heterosis and maternal effect in salinity tolerance of guppy Poecilia reticulata." Fisheries Science. 63・6. 893-896 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Masatsugu Takano: "Biochemical and morphological evidence of two sympatric forms,interpreted as sibling species,in the estuarine grapsid crab Hemigrapsus penicillatus(De Haan)." Benthos Research. 52・2. 111-117 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Minoru IKEDA: "Genetic and morphological analysis of geographic differentiation in Japanese common freshwater shrimp, Paratya compressa (Decapoda : Atyidae)" Tohoku Journal of Agricultural Research. 47・1-2. 37-45 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 安藤大成: "グッピ-の脊椎骨数の系統差について" 水産育種. 23. 59-66 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Takahito SHIKANO: "Difference in osmoregulatory function in sea water among strains of the guppy Poecilia reticulata" Fisheries Science. 63・1. 69-72 (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] Siyang LIU: "Genetic features of natural and cultured population in plaice (Paralichthys olivaceus)" Tohoku Journal of Agricultural Research. 47・3-4. 19-30 (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] 藤尾芳久: "水産生物集団内の個体の多様性とヘテロシス効果" 水産育種. 24. (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] 木島明博: "魚介類の種内分化と集団の育種管理について" 水産育種. 24. (1997)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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