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ID 47294
本文ファイル
著者
Kawai, Koichiro 大学院生物圏科学研究科
Saitou, Hidetoshi 大学院生物圏科学研究科 広大研究者総覧
キーワード
char
distribution
genetic tree
Nikkoiwana
Salvelinus
NDC
動物学
抄録(英)
Genetic relationships among a subspecies of white-spotted char, Salvelinus leucomaenis pluvius, distributed in the border area of three river basins in the eastern Chugoku region of Japan (the Sendai River, flowing into the Sea of Japan, and the Yoshii and Chigusa rivers, both flowing into the Seto Inland Sea), were investigated based on mitochondrial DNA cytochrome-b gene sequences. A total of 7 haplotypes were recognized and there were 8 polymorphic sites in a 447 bp fragment. Some haplotypes were shared by fish in two adjacent basins across passes, and some were confined to restricted basins. One haplotype estimated to be the oldest could be connected to ‘Gogi’, S. leucomaenis imbrius. Another haplotype, estimated to have derived in the most recent period, was observed in more than half the samples. There was a significant positive correlation between the geographic and genetic distances. These results suggest that genetic distance was more strongly determined by geographic distance than by river-basin location, and may support the possibility of range expansion of char by taking advantage of geologic events.
掲載誌名
広島大学総合博物館研究報告
10号
開始ページ
13
終了ページ
18
出版年月日
2018-12-25
出版者
広島大学総合博物館
ISSN
1884-4243
NCID
言語
英語
NII資源タイプ
紀要論文
広大資料タイプ
学内刊行物(紀要等)
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
権利情報
Copyright (c) 2018 広島大学総合博物館 Hiroshima University Museum
部局名
総合博物館
生物圏科学研究科
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