ミトコンドリアをもたない原生生物Entamoeba histolyticaの系統的位置--ペプチド鎖伸長因子EF-2に基づく解析〔英文〕

概要

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Partial DNA regions encoding a major part of translation elongation factor 2 (EF-2) from a mitochondria-lacking protozoan, Entamoeba histolytica, were amplified by polymerase chain reaction and their primary structures were analyzed. The deduced amino acid sequence was aligned with other eukaryotic and archaebacterial EF-2s, and the phylogenetic relationships among eukaryotes were inferred by the maximum likelihood (ML) method. The ML analyses using four different stochastic models of amino acid substitutions consistently suggest that among eukaryotic species being analyzed, E. histolytica is likely to have diverged from other higher eukaryotes on the early phase of eukaryotic evolution.
日本遺伝学会の論文
1994-04-25