Table 2.
Identity Matrix for 2.86 Mb of Shared Backbone Regions Among the Nine Enterobacteria Listed in Table 1
|
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | E. coli K12 MG1655 | 1.000 | — | — | — | — | — | — | — | — |
| 2 | E. coli EDL933 | 0.977 | 1.000 | — | — | — | — | — | — | — |
| 3 | E. coli VT-2 Sakai | 0.978 | 1.000 | 1.000 | — | — | — | — | — | — |
| 4 | E. coli CFT073 | 0.965 | 0.966 | 0.967 | 1.000 | — | — | — | — | — |
| 5 | S. flexneri 2a | 0.976 | 0.975 | 0.975 | 0.963 | 1.000 | — | — | — | — |
| 6 | S. flexneri 2a 2457T | 0.976 | 0.975 | 0.975 | 0.962 | 0.999 | 1.000 | — | — | — |
| 7 | S. Typhimurium | 0.794 | 0.793 | 0.793 | 0.793 | 0.791 | 0.791 | 1.000 | — | — |
| 8 | S. typhi CT18 | 0.792 | 0.791 | 0.791 | 0.792 | 0.790 | 0.789 | 0.981 | 1.000 | — |
| 9
|
S. typhi Ty2
|
0.793
|
0.793
|
0.793
|
0.793
|
0.791
|
0.791
|
0.984
|
0.996
|
1.000
|
-
Although an average of only 58% of the genomes is conserved across species, the level of sequence identity is remarkably high, suggesting that horizontal transfer and differential gene loss may account for the majority of phenotypic diversity among bacteria in this group.
