Turnover of Sex Chromosomes in Celebensis Group Medaka Fishes

  title={Turnover of Sex Chromosomes in Celebensis Group Medaka Fishes},
  author={Taijun Myosho and Yusuke Takehana and Satoshi Hamaguchi and Mitsuru Sakaizumi},
Sex chromosomes and the sex-determining (SD) gene are variable in vertebrates. In particular, medaka fishes in the genus Oryzias show an extremely large diversity in sex chromosomes and the SD gene, providing a good model to study the evolutionary process by which they turnover. Here, we investigated the sex determination system and sex chromosomes in six celebensis group species. Our sex-linkage analysis demonstrated that all species had an XX-XY sex determination system, and that the Oryzias… CONTINUE READING
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