ミトコンドリアDNAシトクロムb遺伝子の塩基配列解析によるヤギ族野生原種と家畜種の系統類縁関係

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タイトル別名
  • Phylogenetic Relationship of Caprini Estimated by Cytochrome b Gene Sequence Analysis
  • ミトコンドリア DNA シトクロム b イデンシ ノ エンキ ハイレツ カイセ

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Phylogenetic relationship of three wild species and two livestock species of Caprini was estimated based on nucleotide sequences for cytochrome b gene in mitochondrial DNA. DNA samples were prepared from blood and liver of Pasang (Capra aegagrus), Markhor (Capra falconeri), Mouflon (Ovis musimon), domestic goat (Capra hircus) and domestic sheep (Ovis aries), respectively, and used for amplifying whole cytochrome b gene DNA by the polymerase chain reaction. The base sequences were directly determined by the dideoxy terminator cycle sequence method using the amplified DNA. In the cytochrome b gene (1140bp), maximal homologies, 99.4% and 99.3%, were obtained between Pasang and domestic goat, and between Mouflon and domestic sheep, respectively: The next closest combinations were between Markhor and domestic goat (96.6%) and between Pasang and Markhor (96.0%). Any of the other combinations gave lower homo-logies. The phylogenetic tree constructed by the neighbor-joining method from the present and previous results confirmed that Pasang and Mouflon was closest to domestic goat and domestic sheep, respectively, though Markhor had also closer relationship to domestic goat and Pasang than to Mouflon and domestic sheep. These results strongly support the previous hypothesis from morphological studies that domestic goat and domestic sheep have been established from Pasang and Mouflon, respectively, and Markhor has contributed partially to the establishment of domestic goat.

収録刊行物

  • 日本畜産学会報

    日本畜産学会報 68 (2), 148-155, 1997

    公益社団法人 日本畜産学会

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