Table 2.
Changes in copy number of seven different IS elements from the ancestor to 10,000 generations in two experimental populations of E. coli
| Ancestor | Ara − 1 | Ara + 1 | |
|---|---|---|---|
| IS1 | 20 | 19.77 (±0.12) | 17.36 (±0.31) |
| IS2 | 1 | 1.00 (±0.00) | 1.00 (±0.00) |
| IS3 | 5 | 5.00 (±0.00) | 5.00 (±0.00) |
| IS4 | 1 | 1.00 (±0.00) | 1.00 (±0.00) |
| IS30 | 1 | 1.00 (±0.00) | 1.00 (±0.00) |
| IS150 | 5 | 6.54 (±0.18) | 16.45 (±0.41) |
| IS186 | 5 | 6.23 (±0.28) | 6.64 (±0.15) |
Values are means (±SE) based on 13 and 11 clones for populations Ara − 1 and Ara + 1, respectively.