Published online May 27, 2014. doi: 10.5496/wjmg.v4.i2.27
Revised: April 10, 2014
Accepted: May 13, 2014
Published online: May 27, 2014
Core tip: Integrative mobile genetic element (IMGE) like prophage, plasmid, transposon or genomic island plays crucial roles in the evolution of bacterial pathogens. The Vibrio cholerae (V. cholerae) genome harbors several such IMGEs, which provides virulence, antibiotic resistance and other fitness traits to cholera pathogen and directly contributes in its evolution. Cholera toxin encoding phage (CTXΦ) is a well characterized IMGE, found integrated in the dimer resolution sites of all epidemic V. cholerae strains and exploits host encoded XerC and XerD recombinases for its lysogenic conversion. In this review we discussed about integration and dissemination of CTXΦ and related IMGEs of V. cholerae.