We studied genetic variations at the mitochondrial cytochrome b (cyt b) gene in wild populations of the Medaka fish (Oryzias latipes) from 58 sites of Yamagata prefecture by the polymerase chain reaction-restriction fragment length polymorphisms (PCR-RFLPs). In addition, we determined the nucleotide sequences of cyt b from 13 specimens and reconstructed a phylogenetic tree. Our results showed that, in Yamagata prefecture, the wild populations of the Medaka fish were mainly divided into two groups: One group distributed in the northern coastal area and another distributed in the inland area. The boundary between those areas was detected in Mamurogawa-machi, Sakekawa-mura and Tozawa-mura. Key words: Geographic variation, Oryzias latipes, mitochondrial DNA,Yamagata prefecture.//佐々木,隆行/ササキ, タカユキ/Sasaki, Takayuki/渡辺, 明彦/ワタナベ, アキヒコ/Watanabe, Akihiko/鬼武, 一夫/オニタケ, カズオ/Onitake, Kazuo
雑誌名
山形大学紀要. 自然科学 = Bulletin of Yamagata University. Natural Science
巻
16
号
2
ページ
55 - 69
発行年
2006-02-15
書誌レコードID
AN0024300X
その他の言語のタイトル
Genetic Variation in Wild Populations of the Medaka, Oryzias latipes, in Yamagata Prefecture