J Syst Evol ›› 2008, Vol. 46 ›› Issue (3): 258-262.doi: 10.3724/SP.J.1002.2008.08008

• Research Articles • Previous Articles     Next Articles

Prokaryotic branch of the Tree of Life: A composition vector approach

Bai-Lin HAO123,Lei GAO24   

  1. 1(T-Life Research Center, Fudan University, Shanghai 200433, China)

    2(Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080, China)

    3(Santa Fe Institute, Santa Fe, NM 87501, USA)

    4(Present: Department of Botany and Plant Sciences, University of California, Riverside, CA 92521, USA)hao@mail.itp.ac.cn
  • Received:2008-01-23 Online:2008-04-22 Published:2008-05-18

Abstract: The Composition Vector Tree (CVTree) is a parameter-free and alignment-free method to infer pro-karyotic phylogeny from their complete genomes. It is distinct from the traditional 16S rRNA analysis in both the input data and the methodology. The prokaryotic phylogenetic trees constructed by using the CVTree method agree well with the Bergey’s taxonomy in all major groupings and fine branching patterns. Thus, combined use of the CVTree approach and the 16S rRNA analysis may provide an objective and reliable reconstruction of the prokaryotic branch of the Tree of Life.

Key words: Prokaryotic phylogeny, taxonomy, composition vector, CVTree, Bergey's Manual

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