Overview of the two V. vulnificus chromosomes. Schematic representation of the δ* values and GC content of large putative horizontally transferred gene clusters in A) chromosome I and B) chromosome II of V. vulnificus CMCP6 using a window size of 5 kbp (x-axis represents chromosome position). Red depicts the low GC content GIs, while blue depicts the high GC content GIs. In green, a large ribosomal protein gene cluster is depicted (Rib). The horizontal dashed red line represents the average δ* value and GC percentage, respectively.