Extensive 16S rRNA gene sequence diversity in Campylobacter hyointestinalis strains: taxonomic and applied implications

C.S. Harrington, Stephen L.W. On

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    Phylogenetic relationships of Campylobacter hyointestinalis subspecies were examined by means of 16S rRNA gene sequencing. Sequence similarities among C. hyointestinalis subsp. lawsonii strains exceeded 99.0 %, but values among C. hyointestinalis subsp. hyointestinalis strains ranged from 96.4 to 100 %. Sequence similarites between strains representing the two different subspecies ranged from 95.7 to 99.0 %. An intervening sequence was identified in certain of the C. hyointestinalis subsp. lawsonii strains. C. hyointestinalis strains occupied two distinct branches in a phylogenetic analysis of the genus Campylobacter, emphasizing the need for multiple strain analysis when using 16S rRNA gene sequence comparisons for taxonomic investigations.
    Original languageEnglish
    JournalInternational Journal of Systematic Bacteriology
    Volume49
    Issue number3
    Pages (from-to)1171-1175
    ISSN0020-7713
    Publication statusPublished - 1999

    Keywords

    • phylogeny
    • taxonomy
    • 16S rRNA
    • Campylobacter hyointestinalis
    • sequence diversity

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