FIG. 1.

Dendrogram of the C. jejuni MLST profiles identified in this study. The MLST STs were determined as outlined in Materials and Methods. For each isolate, the allelic sequences were concatenated in the order aspA-uncA-glnA-gltA-glyA-pgm-tkt and aligned in ClustalX. The dendrogram was constructed in Mega 4 using the aligned concatenated sequences, the neighbor-joining algorithm, and the Kimura two-parameter distance estimation method. Bootstrap values of >75%, generated from 500 replicates, are shown at the nodes. The scale bar represents substitutions per site. The filled circles (•) indicate those C. jejuni strains in which the capA gene is absent. Labels in parentheses indicate isolate source: H, human; P, poultry; S, porcine (swine); B, bovine; O, ovine; and C, canine.