Genetic classification of 'Rickettsia heilongjiangii' and 'Rickettsia hulinii,' two chinese spotted fever group rickettsiae

J. Z. Zhang, M. Y. Fan, Y. M. Wu, P. Fournier, V. Roux, D. Raoult

    Research output: Contribution to journalArticle

    42 Scopus citations

    Abstract

    To determine the phylogenetic position of two new rickettsial strains isolated from ticks in China, 16S ribosomal DNA, gltA, and ompA (apart from the tandem repeat units) genes were amplified by PCR and sequenced. The phylogenetic relationships between these strains and other rickettsiae were inferred from the comparison of sequences of the three genes by the parsimony, neighbor-joining, and maximum-likelihood methods. The results demonstrated that the 054 strain, a rickettsia pathogenic in humans, and the HL-93 strain were related and clustered together with Rickettsia japonica. Significant statistical bootstrap values (100 and 92%) supported the nodes in this cluster. Based on previous genotypic and antigenic data and the phylogenetic analysis presented here, the 054 and HL-93 strains should be considered as new species, and we formally propose that they be named 'Rickettsia heilongjiangii' and 'Rickettsia hulinii,' respectively.

    Original languageEnglish (US)
    Pages (from-to)3498-3501
    Number of pages4
    JournalJournal of Clinical Microbiology
    Volume38
    Issue number9
    StatePublished - Sep 26 2000

    ASJC Scopus subject areas

    • Microbiology (medical)

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    Zhang, J. Z., Fan, M. Y., Wu, Y. M., Fournier, P., Roux, V., & Raoult, D. (2000). Genetic classification of 'Rickettsia heilongjiangii' and 'Rickettsia hulinii,' two chinese spotted fever group rickettsiae. Journal of Clinical Microbiology, 38(9), 3498-3501.