Table 1 Growth patterns observed on colistin plates for Ecl8 cultures C1 and C2.
Culture | Day | Colistin concentration (µg/ml)a | SNPs detected compared to D0 (grown + col) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | 2 | 4 | 8 | 16 | 32 | 64 | 128 | Gene | Position in gene | Ref | SNP | aa change | Proportion population (%)b | |||
C1 | +col | D0 | +++ | +++ | ++ | − | − | − | − | − | − | − | − | − | − | − |
D1 | +++ | +++ | +++ | +++ | +++ | +++ | +++ | + | ||||||||
D2 | +++ | +++ | +++ | +++ | +++ | +++ | +++ | +++ | ||||||||
D3 | +++ | +++ | +++ | +++ | +++ | +++ | +++ | +++ | phoQ c | 136 | T | C | K46Q | 100 | ||
D4 | +++ | +++ | +++ | +++ | +++ | +++ | +++ | +++ | ||||||||
D5 | +++ | +++ | +++ | +++ | +++ | +++ | +++ | +++ | phoQ c | 136 | T | C | K46Q | 100 | ||
C1 | no col | D6 | +++ | +++ | +++ | +++ | +++ | +++ | +++ | +++ | ||||||
D7 | +++ | +++ | +++ | +++ | +++ | +++ | +++ | +++ | ||||||||
D8 | +++ | +++ | +++ | +++ | +++ | +++ | +++ | +++ | ||||||||
D9 | +++ | +++ | +++ | +++ | +++ | +++ | +++ | +++ | ||||||||
D10 | +++ | +++ | +++ | +++ | +++ | +++ | +++ | +++ | phoQ c | 136 | T | C | K46Q | 100 | ||
C2 | + col | D0 | +++ | +++ | ++ | − | − | − | − | − | − | − | − | − | − | − |
D1 | +++ | +++ | +++ | +++ | + | − | − | − | ||||||||
D2 | +++ | +++ | +++ | + | − | − | − | − | ||||||||
D3 | +++ | +++ | +++ | +++ | +++ | +++ | − | − | crrB d,e | 278 | G | A | S93N | 71.8, 71.9 | ||
D4 | +++ | +++ | +++ | +++ | +++ | +++ | +++ | +++ | ||||||||
D5 | +++ | +++ | +++ | +++ | +++ | +++ | +++ | +++ | crrB d | 470 | G | A | G157A | 61.5, 62.2 | ||
crrB d | 23 | G | C | S8N | 23.8, 37.1 | |||||||||||
C2 | no col | D6 | +++ | +++ | +++ | +++ | +++ | +++ | − | − | ||||||
D7 | +++ | +++ | ++ | − | − | − | − | − | ||||||||
D8 | +++ | +++ | ++ | − | − | − | − | − | none | |||||||