Genetic relationship in the 'Bacillus cereus group' by rep-PCR fingerprinting and sequencing of a Bacillus anthracis-specific rep-PCR fragment

A. Cherif, L. Brusetti, S. Borin, A. Rizzi, A. Boudabous, H. Khyami-Horani, Daniele Daffonchio*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

64 Scopus citations

Abstract

Aims: To evaluate the genetic relationship in the Bacillus cereus group by rep-PCR fingerprinting. Methods and Results: A collection of 112 strains of the six species of the B. cereus group was analysed by rep-PCR fingerprinting using the BOX-AIR primer. A relative genetic distinctness was found among the species. Cluster analysis of the rep-PCR patterns showed clusters of B. thuringiensis strains quite separate from those of B. cereus strains. The B. anthracis strains represented an independent lineage in a B. cereus cluster. The B. mycoides, B. pseudomycoides and B. weihenstephanensis strains were clustered into three groups at some distance from the other species. Comparison of sequences of AC-390, a typical B. anthracis rep-PCR fragment, from 27 strains of B. anthracis, B. cereus, B. thuringiensis and B. weihenstephanensis, representative of different clusters identified by rep-PCR fingerprinting, confirmed that B. anthracis diverges from its related species. Conclusions: The genetic relationship deduced from the rep-PCR patterns indicates a relatively clear separation of the six species, suggesting that they can indeed be considered as separate units. Significance and Impact of the Study: rep-PCR fingerprinting can make a contribution in the clarification of the genetic relationships between the species of the B. cereus group.

Original languageEnglish (US)
Pages (from-to)1108-1119
Number of pages12
JournalJournal of Applied Microbiology
Volume94
Issue number6
DOIs
StatePublished - Jun 12 2003

Keywords

  • BOX-A1R
  • Bacillus anthracis
  • Bacillus cereus group
  • Genetic relationship
  • rep-PCR
  • ywfK

ASJC Scopus subject areas

  • Biotechnology
  • Applied Microbiology and Biotechnology

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