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AMCoR:Asahikawa Medical University Collection and Research (旭川医科大学学術成果リポジトリ)は、本学で生産された電子的な知的生産物(学術雑誌論文の原稿・教材・学術資料など)を保存し、原則的に無償で発信するためのインターネット上の保管庫です。

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閲覧数:4029
ID 17156584
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タイトル A molecular phylogeny of the genus Echinococcus inferred from complete mitochondrial genomes
著者
中尾, 稔 (Nakao, Minoru)
McManus, DP
Schantz, PM
Craig, PS
Ito, A
上位タイトル
Parasitology Vol.134, No.5  (2007. ) ,p.713- 722
識別番号
ISSN
0031-1820
DOI 10.1017/S0031182006001934
URI http://journals.cambridge.org/action/displayAbstract?aid=988584
抄録 Taxonomic revision by molecular phylogeny is needed to categorize members of the genus Echinococcus (Cestoda: Taeniidae). We have reconstructed the phylogenetic relationships of E. oligarthrus, E. vogeli, E. multilocularis, E. shiquicus, E. equinus, E. ortleppi, E. granulosus sensu stricto and 3 genotypes of E. granulosus sensu lato (G6, G7 and G8) from their complete mitochondrial genomes. Maximum likelihood and partitioned Bayesian analyses using concatenated data sets of nucleotide and amino acid sequences depicted phylogenetic trees with the same topology. The 3 E. granulosus genotypes corresponding to the camel, pig, and cervid strains were monophyletic, and their high level of genetic similarity supported taxonomic species unification of these genotypes into E. canadensis. Sister species relationships were confirmed between E. ortleppi and E. canadensis, and between E. multilocularis and E. shiquicus, regardless of the analytical approach employed. The basal positions of the phylogenetic tree were occupied by the neotropical endemic species, E. oligarthrus and E. vogeli, whose definitive hosts are derived from carnivores that immigrated from North America after the formation of the Panamanian land bridge. Host-parasite co-evolution comparisons suggest that the ancestral homeland of Echinococcus was North America or Asia, depending on whether the ancestral definitive hosts were canids or felids.
注記 Copyright © (2007) Cambridge University Press

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eng
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