TABLE 2.
Nucleotide sequence polymorphism among three virulence genes and one housekeeping gene from natural isolates of E. coli
Gene | No. of isolates | Length (bp) | No. of polymorphic:
|
kS (102) | kN (102) | kN/kS ratio | CAI (30) | GC content | |
---|---|---|---|---|---|---|---|---|---|
Nucleotides | Amino acids | ||||||||
hlyA | 8 | 570 | 6 | 3 | 0.89 ± 0.53 | 0.27 ± 0.16 | 0.33 | 0.23 | 40 |
kpsD | 8 | 729 | 48 | 10 | 5.84 ± 0.99 | 0.52 ± 0.16 | 0.09 | 0.33 | 52 |
papH | 6 | 462 | 22 | 9 | 5.29 ± 1.54 | 1.07 ± 0.35 | 0.21 | 0.24 | 50 |
mdh | 8 | 864 | 20 | 2 | 3.10 ± 0.80 | 0.14 ± 0.10 | 0.05 | 0.58 | 52 |