“…They have attracted the attention of the research community due to their ability to acquire antimicrobial resistance traits and to mobilize across geographical and taxonomical borders (Fricke et al, 2009). Recent comparative studies have addressed the evolutionary relationships among the IncA/C plasmids from Salmonella enterica, Escherichia coli, Yersinia pestis, Yersinia ruckeri, Vibrio cholera, Photobacterium damselae and Aeromonas salmonicida (Welch et al, 2007;Kim et al, 2008;McIntosh et al, 2008;Pan et al, 2008;Fricke et al, 2009;Call et al, 2010). The genomic comparison of seven IncA/C plasmids showed that these plasmids share a common backbone, including the origin of replication and a conjugative plasmid transfer system (Welch et al, 2007;Fricke et al, 2009).…”