TABLE 1.
Populations analyzed in this study
| Populationa | Population evolved from | Daysb | Presence of ampicillin |
|---|---|---|---|
| Rd-10 | Rd | 10 | No |
| Rd/pB1000-10 | Rd/pB1000 | 10 | No |
| Rd/pB1000A-10 | Rd/pB1000 | 10 | Yes |
| Rd-20 | Rd-10 | 10 (20) | No |
| Rd/pB1000-20 | Rd/pB1000-10 | 10 (20) | No |
| Rd/pB1000A-20 | Rd/pB1000A-10 | 10 (20) | No |
| Rd-20/pB1000 | Rd-20 (transformed with pB1000) | NAc | NA |
a
There were five replicates per population.
b
Numbers in parentheses represent the accumulated days of evolution from the original parental strain Rd or Rd/pB1000.
c
NA, not applicable.