伸長因子EF-TuとEF-Gの比較に基づく複合系統樹と古細菌Methanococcus及びHalobacteriumと真核生物との近縁関係〔英文〕
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概要
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From a comparison of elongation factors Tu(EF-Tu) and G(EF-G) from a variety of species covering all the three urkingdoms (eubacteria, archaebacteria, and eukaryotes), including two archaebacterial species, Methanococcus vanielli, a methanogen, and Halobacterium halobium, an extremely holophilic archaebacterium, a rooted phylogenetic tree was inferred by the neighbor joining method and the maximum likelihood method, and the phylogenetic relationship among the three urkingdoms was determined. Furthermore the branching patterns of the three urkingdoms were examined in detail by the bootstrap resampling analysis. It was shown that both the extremely halophilic archaebacterium and the methanogen are more closely related to eukaryotes than they are to eubacteria with significant reliability. Thus the eocyte tree proposed by Lake et al. is highly unlikely: According to the eoeyte tree, the two archaebacterial groups should be closely related to eubacteria and distantly related to eukaryotes.
- 日本遺伝学会の論文
著者
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HASEGAWA Masami
Institute of Statistical Mathematics
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MIYATA Takashi
Department of Iron and Steel Engineering, Nagoya University
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Mukohata Yasuo
Department of Biology, Faculty of Science, Osaka University
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Mukohata Yasuo
Department Of Biology Faculty Of Science
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IWABE Naoyuko
Department of Biology, Faculty of Science, Kyushu University
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MIYATA Takashi
Department of Applied Physics, Tokai University
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長谷川 政美
Institute of Statistical Mathematics
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