西太平洋域で発見されたタカサゴとニセタカサゴの雑種

資料種別:
論文(リポジトリ)
責任表示:
賀数, 大吾 ; 佐久本, 孟寿 ; 立原, 一憲 ; 今井, 秀行 ; Kakazu, Daigo ; Sakumoto, Takehisa ; Tachihara, Katsunori ; Imai, Hideyuki
言語:
日本語
出版情報:
日本生物地理学会 — The Biogeographical Society of Japan, 2015-12-20
著者名:
賀数, 大吾
佐久本, 孟寿
立原, 一憲
今井, 秀行
Kakazu, Daigo
Sakumoto, Takehisa
Tachihara, Katsunori
Imai, Hideyuki
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掲載情報:
日本生物地理学会会報 = Bulletin of the Bio-geographical Society of Japan
ISSN:
0067-8716  CiNii Articles  Webcat Plus  JAIRO
巻:
70
開始ページ:
55
終了ページ:
63
バージョン:
publisher
概要:
In May 2015, a presumed hybrid fusilier fish of the genus Pterocaesio was collected from Ie-jima Island, Ryukyu Archipelago, Japan. It was morphologically similar to both Pterocaesio digramma and P. marri, but the species could not be clear ly identified. To determine if it was a hybrid, we developed a PCR-RFLP marker that could distinguish these two species. After amplifying ITS-1 region with PCR, the PCR product was digested by restriction enzyme Taq Ⅰ. The result showed that the specific bands to each species resulting in heterozygosity, which suggested this individual was a hybrid. This is the first detailed record of natural hybridization among Caesionidae species in Ryukyu Archipelago. Furthermore, we investigated 626 specimens, including adults and juveniles of these two species using the genetic marker we developed in this study. Eighteen hybrid individuals were detected in several localities (Amami-oshima Island, Ie-jima Island, Yaeyama Islands (Ishigaki-jima Island and Iriomote-jima Island), Philippines and Indonesia). Combining nuclear DNA and mtDNA data, two individuals derived from backcross were also detected. 続きを見る
URL:
http://hdl.handle.net/20.500.12000/37567
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