Genetic characteristics and possible introduced origin of the paradise fish Macropodus opercularis in the Ryukyu Archipelago, Japan

  title={Genetic characteristics and possible introduced origin of the paradise fish Macropodus opercularis in the Ryukyu Archipelago, Japan},
  author={Yuichi Kano and Ryoichi Tabata and Jun Nakajima and Mikumi Takada-Endo and Chunguang Zhang and Yahui Zhao and Tomomi Yamashita and Katsutoshi Watanabe},
  journal={Ichthyological Research},
It has hitherto been unknown whether the paradise fish Macropodus opercularis that inhabits the Ryukyu Archipelago, Japan, is native to the region or was introduced. This study examined the genetic identity of fish from five islands in the Ryukyu Archipelago (Okinoerabu, Okinawa, Yagaji, Kume, and Minamidaito islands) and compared it with those from Taiwan Island, mainland China, and Hainan Island. Analyses of the mtDNA control (760 bp) and cytb (660 bp) regions showed that haplotypes of… Expand
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