UPGMA method based dendrograms of Sakazaki serogroup strains.

<p>Whole Genome Mapping data based distance matrix with default parameters was used to generate the dendrograms. The three clusters (epidemic <i>V</i>. <i>cholerae</i> Classical and El Tor, one group of environmental isolates from rat, and <i>V</i>. <i>mimicus</i>) are indicated on the branches. The distribution of VPI and CTX on chromosome I in non-O1/non-O139 strains are indicated as well. The different colors of the highlighted strains indicate the following characteristics: No highlight- Clinical; Gray-environmental; Light green (serogroups O2-O4) source unknown; Yellow: epidemic O1 Classical and El Tor; Green: non-O1 epidemic strains; Pink: <i>V</i>. <i>mimicus</i>; Blue: One <i>V</i>. <i>mimicus</i> isolate (serogroup O115) that has the VPI cluster; Orange: Clinical and carry both VPI and CTX clusters; Light red (O77, O49, O80, O53): Clinical and carry VPI only. Scale: 0.2 = 20% dissimilarity.