RAPD-PCR法によるアマゴ×イワナ二倍体および三倍体雑種の確認

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タイトル別名
  • Verification of Hybrid Nature of Diploid and Triploid Progeny between Amago Salmon and Japanese Char by RAPD-PCR Analysis.
  • ＲＡＰＤ‐ＰＣＲ法によるアマゴ×イワナ二倍体および三倍体雑種の確認
  • RAPD-PCRホウ ニ ヨル アマゴ イワナ 2バイタイ オヨビ 3バイタイ ザッシュ ノ カクニン

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Artificial hybridizations were made between female amago salmon, Oncorhynchus masou ishikawae, and male Japanese char, Salvelinus leucomaenis. Triploid hybrids were then produced by exposing the fertilized eggs to heat shock (27°C, for 23 min, 8 min after fertilization) . Hybrid nature and ploidy status of the resultant progeny were examined by karyotyping. The genetic constitution of the hybrids was also examined by RAPD (random amplified polymorphic DNA) -PCR (polymerase chain reaction) . Using either amago salmon or Japanese char DNA as template of 12 primers examined, five resulted in a pattern which is distinguishable between the two species. Using the hybrid DNA as template three of the five primers yielded DNA fragments from both species, suggesting their hybrid nature. These results suggest that RAPD-PCR analysis is a useful method for identification of hybrids.

収録刊行物

  • 水産増殖

    水産増殖 47 (1), 35-41, 1999

    日本水産増殖学会

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