Figure 2

Comparison of Cjd and Cjj strains by cluster analysis of CGI results. The numbers at the bottom of the figure correspond to the Cjd strains in Table 1. Details of the diverse collection of Cjj strains have been described previously [23]. The genes are represented in the order of their positions from the RM1221 and are followed by the NCTC 11168 genes that include RM1221 pseudogenes. The four CJIEs from RM1221 and the capsular polysaccharide biosynthesis regions (HV 13) from RM1221 and NCTC 11168 are indicated. The gene status is color-coded: blue, present; yellow, divergent/unknown; red, absent and gray, no data. For cutoffs of absence and presence predictions, refer to Materials and Methods. An average linkage hierarchical clustering of the C. jejuni strains was compiled in GeneSpring version 7.3 from the CGI data for each element with the standard correlation and bootstrapping. Cjd strains are labeled in yellow and Cjj strains are labeled in white. The scale for distance score is also shown.