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タイトル: Molecular phylogeny of the rotifers with two Indonesian Brachionus lineages
著者: Yoshinaga, Tatsuki
Minegishi, Yuki
Rumengan, Inneke F. M.
Kaneko, Gen
Furukawa, Satoshi
Yanagawa, Yoshiko
Tsukamoto, Katsumi
Watabe, Shugo
キーワード: Brachionus
cytochrome c oxidase subunit I
mitochondrial DNA
発行日: 2004年4月30日
出版者: International Coastal Research Center, Ocean Research Institute, the University of Tokyo
掲載誌情報: Coastal marine science. Vol.29No.1, 2004.4, pp. 45-56
抄録: The rotifer Brachionus plicatilis is an ecologically and commercially important species, and has been studied in various fields such as population dynamics, ecotoxicology and aging. However, recent studies have revealed that the B. plicatilis lineages involve an unknown number of cryptic species, and the group has been regarded as the Brachionus complex. One cause of this complicated taxonomy is the lack of surveys in the tropical zone, which is characterized by enormous species-richness. Accordingly, in this study we collected two Brachionus rotifers from the Sumatra and Sulawesi Islands, Indonesia, and determined their partial nucleotide sequences of mitochondrial DNA cytochrome c oxidase subunit I gene. Subsequently, we constructed molecular phylogenetic trees with fourteen species/lineages from four genera including the two Indonesian rotifers. The two Indonesian Brachionus rotifers were respectively found to be phylogenetically close to B. ibericus and B. rotundiformis. On the other hand, Japanese B. plicatilis was suggested to be phylogenetically closer to B. Manjavacas, which is proposed to be a new species, than to Spanish B. plicatilis. These results imply that the current taxonomy of the Brachionus is problematic, and a major revision is necessary to establish a reliable taxonomy of this group.
URI: http://hdl.handle.net/2261/5581
ISSN: 13493000
出現カテゴリ:Coastal Marine Science
Coastal Marine Science


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