TABLE 3.
Mean percent sequence divergence within and between the sequence clusters and k parameters (given as ratio of between-group divergence to the mean of within-group divergence)a
| Gene | Cluster | Data for cluster |
||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| I | II | III | IV | V | VI | VII | VIII | IX | X | XI | XII | xiii | ||
| hsp60 | I | 3.8 ± 2.3 | 2.5 | 2.9 | 1.7 | 3.7 | 3.4 | 3.1 | 3.2 | 1.9 | 3.0 | 2.8 | 4.3 | 1.2 |
| II | 4.8 ± 0.5 | 0 ± 0 | 31.0 | 3.4 | 47.0 | >99 | >99 | 18.0 | 8.6 | 8.7 | 17.7 | >99 | 1.8 | |
| III | 6.0 ± 0.4 | 4.6 ± 0.2 | 0.3 ± 0.2 | 3.7 | 25.1 | 36.2 | 39.5 | 13.4 | 6.8 | 10 | 14.7 | 54.6 | 1.8 | |
| IV | 5.2 ± 1.8 | 4.5 ± 0.3 | 5.4 ± 0.3 | 1.0 ± 0.6 | 4.1 | 3.8 | 4.0 | 3.4 | 2.4 | 6.4 | 3.5 | 5.6 | 1.3 | |
| V | 7.5 ± 0.7 | 7.1 ± 0.2 | 7.5 ± 0.3 | 6.1 ± 0.3 | 0.3 ± 0.2 | 38.3 | 38.0 | 12.7 | 10.9 | 11.6 | 19.2 | 60.3 | 2.2 | |
| VI | 6.4 ± 0.5 | 4.9 ± 0.0 | 5.4 ± 0.2 | 5.0 ± 0.3 | 5.8 ± 0.2 | 0 ± 0 | >99 | 6.4 | 6.0 | 15.4 | 21.7 | >99 | 1.9 | |
| VII | 6.0 ± 0.5 | 5.3 ± 0.0 | 5.9 ± 0.2 | 5.2 ± 0.3 | 5.7 ± 0.2 | 1.9 ± 0.0 | 0 ± 0 | 2.9 | 6.8 | 13.1 | 20.3 | >99 | 1.9 | |
| VIII | 7.0 ± 0.5 | 5.4 ± 0.3 | 6.0 ± 0.3 | 5.5 ± 0.4 | 5.7 ± 0.3 | 1.9 ± 0.3 | 0.9 ± 0.3 | 0.6 ± 0.4 | 4.3 | 8.3 | 10.4 | 23.6 | 1.9 | |
| IX | 4.6 ± 0.7 | 3.9 ± 0.6 | 4.1 ± 0.4 | 4.3 ± 0.5 | 6.5 ± 0.6 | 2.7 ± 0.5 | 3.1 ± 0.5 | 3.2 ± 0.5 | 0.9 ± 0.4 | 6.3 | 7.0 | 15.0 | 1.4 | |
| X | 6.6 ± 0.3 | 6.1 ± 0.4 | 5.0 ± 0.2 | 5.4 ± 0.6 | 5.8 ± 0.3 | 5.4 ± 0.4 | 4.6 ± 0.4 | 5.4 ± 1 | 5.0 ± 0.3 | 0.7 ± 0 | 12 | 20.3 | 1.5 | |
| XI | 6.1 ± 1.2 | 5.3 ± 0.0 | 6.6 ± 0.2 | 5.6 ± 0.5 | 8.6 ± 0.2 | 6.5 ± 0.0 | 6.1 ± 0.0 | 6.3 ± 0.3 | 5.2 ± 0.6 | 7.8 ± 0.1 | 0.6 ± 0.3 | 16.7 | 1.9 | |
| XII | 8.2 ± 1.7 | 6.9 ± 0.0 | 8.2 ± 0.2 | 7.3 ± 1.0 | 9.1 ± 0.1 | 8.5 ± 0.0 | 7.3 ± 0.0 | 7.1 ± 0.6 | 6.7 ± 0.4 | 7.1 ± 0.2 | 5.0 ± 0.2 | 0 ± 0 | 2.0 | |
| xiii | 6.7 ± 1.6 | 6.0 ± 1.2 | 6.4 ± 0.9 | 6.0 ± 2.0 | 7.7 ± 1.5 | 6.5 ± 1.6 | 6.4 ± 1.3 | 6.9 ± 1.6 | 5.3 ± 0.9 | 6.1 ± 1.1 | 6.9 ± 0.7 | 6.8 ± 0.7 | 6.7 ± 1.3 | |
| rpoB | I | 0.9 ± 0.3 | 4.0 | 4.9 | 2.8 | 3.7 | 6.5 | 5.9 | 4.6 | 3.8 | 8.4 | 3.8 | 4.5 | 1.4 |
| II | 2.4 ± 0.2 | 0.3 ± 0.2 | 6.0 | 5.0 | 9.1 | 13.7 | 11.2 | 5.1 | 4.17 | 14.9 | 5.1 | 6.6 | 1.4 | |
| III | 2.7 ± 0.1 | 1.5 ± 0.1 | 0.2 ± 0.1 | 6.7 | 11.7 | 9.6 | 5.6 | 5.4 | 2.2 | 16.5 | 5.6 | 8.4 | 1.8 | |
| IV | 2.0 ± 0.2 | 2.0 ± 0.2 | 2.4 ± 0.1 | 0.5 ± 0.2 | 5.0 | 11.3 | 9.3 | 6.3 | 4.6 | 12.2 | 5.6 | 6.4 | 1.5 | |
| V | 2.2 ± 0.2 | 2.7 ± 0.2 | 2.9 ± 0.1 | 2.0 ± 0.2 | 0.3 ± 0.1 | 19.7 | 19.3 | 8.5 | 7.5 | 14.2 | 7.1 | 10.9 | 1.9 | |
| VI | 2.9 ± 0.2 | 2.1 ± 0.1 | 1.9 ± 0.0 | 2.8 ± 0.1 | 3.0 ± 0.1 | 0 ± 0 | >99 | 5.5 | 9.6 | 23 | 10.9 | 19.1 | 1.9 | |
| VII | 2.6 ± 0.2 | 1.7 ± 0.1 | 1.1 ± 0.0 | 2.3 ± 0.1 | 2.9 ± 0.1 | 1.7 ± 0.0 | 0 ± 0 | 8.5 | 5.6 | 23.7 | 7.7 | 12.9 | 1.9 | |
| VIII | 3.0 ± 0.2 | 1.8 ± 0.2 | 1.6 ± 0.1 | 2.8 ± 0.2 | 3.0 ± 0.1 | 1.1 ± 0.1 | 1.7 ± 0.1 | 0.4 ± 0.2 | 4.3 | 14 | 5.5 | 7.5 | 1.7 | |
| IX | 2.5 ± 0.2 | 1.5 ± 0.2 | 0.8 ± 0.2 | 2.1 ± 0.2 | 2.6 ± 0.2 | 1.9 ± 0.2 | 1.1 ± 0.2 | 1.7 ± 0.2 | 0.4 ± 0.2 | 13.6 | 3.7 | 5.5 | 0.7 | |
| X | 6.3 ± 0.2 | 6.7 ± 0.9 | 6.6 ± 0.1 | 6.7 ± 0.2 | 6.4 ± 0.1 | 6.9 ± 0.0 | 7.1 ± 0.1 | 7.0 ± 0.1 | 6.8 ± 0.2 | 0.6 ± 0.0 | 12.7 | 16.2 | 3.8 | |
| XI | 2.6 ± 0.3 | 2.0 ± 0.3 | 1.9 ± 0.2 | 2.8 ± 0.2 | 2.9 ± 0.2 | 2.7 ± 0.2 | 1.9 ± 0.2 | 2.5 ± 0.3 | 1.7 ± 0.3 | 7.0 ± 0.1 | 0.5 ± 0.2 | 3.2 | 1.8 | |
| XII | 2.7 ± 0.2 | 2.0 ± 0.4 | 2.1 ± 0.1 | 2.6 ± 0.2 | 3.3 ± 0.2 | 2.9 ± 0.1 | 1.9 ± 0.1 | 2.6 ± 0.2 | 1.9 ± 0.2 | 7.3 ± 0.2 | 1.3 ± 0.3 | 0.3 ± 0.2 | 1.9 | |
| xiii | 2.6 ± 0.4 | 2.2 ± 0.2 | 2.7 ± 0.7 | 2.4 ± 0.4 | 2.9 ± 0.3 | 2.7 ± 0.6 | 2.6 ± 0.8 | 2.8 ± 0.6 | 2.4 ± 0.7 | 6.6 ± 0.5 | 2.9 ± 0.7 | 3.0 ± 0.7 | 2.8 ± 0.8 | |
a
Data in the left lower portions indicate mean percent sequence divergence [arithmetic mean ± standard deviation of percent sequence divergence (100 × pairwise nucleotide distances divided by total distance) within and between sequence clusters based on all pairwise comparisons of strains from the respective clusters]. Data in the right upper portions indicate the k parameter [ratio of the between-group divergence to the mean of the within-group divergence]. A ratio of more than 2 indicates that the groups can be considered separate sequence similarity clusters (26).