FIG. 1.

Genetic relationships among KNP B. anthracis isolates. Eight VNTR marker loci (9) were used to estimate genetic relationships among the 98 B. anthracis isolates in the study. UPGMA cluster analysis generated a dendrogram to graphically represent dissimilarity among the unique types observed. On average, the A and B isolates have different alleles at two-thirds of the eight loci. The allele size at each VNTR locus is shown along with the number of isolates (N) in each genotypic group (G). Genotype number and VNTR marker alleles are consistent with a previous report (9). The major diversity group (9) represented in each of the branches is shown in parentheses beside the branch designation. The D calculated for each of the eight markers is listed below the dendrogram.