TABLE 5.
Genetic differences between strains with identical PFGE patterns
| PFGE type (no. of isolates) | Variant locus | Predominant allele | Variant allele (no. of isolates) | No. of different nucleotides | No. of repeats involved | Distance to 3′ end (bp) | Genetic event | Evolution |
|---|---|---|---|---|---|---|---|---|
| A (15) | spa | 1 | 14 (2) | 24 | 1 | 316 | Deletion | Clonal |
| A16 (3) | clfB | 1 | 34 (2) | 18 | 1 | 226 | Deletion | Clonal |
| C (14) | clfA | 3 | 22 (2) | 1 | 1 | 224 | Point mutation | Clonal |
| C (14) | clfB | 3 | 21 (2) | 36 | 2 | 112 | Deletion | Clonal |
| C (14) | spa | 3 | 34 (2) | 24 | 1 | 390 | Deletion | Clonal |
| C10 (5) | spa | 5 | 19 (1) | 24 | 1 | 366 | Deletion | Clonal |
| C1 (18) | clfA | 3 | 16 (2) | 12 | 1 | 147 | Duplication | Clonal |
| C1 (18) | clfA | 3 | 22 (6) | 1 | 1 | 224 | Point mutation | Clonal |
| C1 (18) | spa | 3 | 34 (4) | 24 | 1 | 390 | Deletion | Clonal |