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Prokaryote phylogeny based on ribosomal proteins and aminoacyl tRNA synthetases by using the compositional distance approach

机译:成分距离法基于核糖体蛋白和氨酰基tRNA合成的原核生物系统发育

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摘要

In order to show that the newly developed K-string composition distance method, based on counting oligopeptide frequencies, for inferring phylogenetic relations of prokaryotes works equally well without requiring the whole proteome data, we used all ribosomal proteins and the set of aminoacyl tRNA synthetases for each species. The latter group has been known to yield inconsistent trees if used individually. Our trees are obtained without making any sequence alignment. Altogether 16 Archaea, 105 Bacteria and 2 Eucarya are represented on the tree. Most of the lower branchings agree well with the latest, 2003, of the second edition of the and the trees also suggest some relationships among higher taxa.
机译:为了证明基于计数寡肽频率的新开发的K弦组成距离法在不要求整个蛋白质组数据的情况下同样能很好地推断原核生物的亲缘关系,我们使用了所有核糖体蛋白和一组氨酰基tRNA合成酶每个物种。如果单独使用后一组,则会产生不一致的树木。我们的树是在不进行任何序列比对的情况下获得的。树上共有16个古细菌,105个细菌和2个Eucarya。大部分较低的分支与第二版的2003年最新版本非常吻合,树木也暗示了较高分类单元之间的某些关系。

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