TABLE 1.

Summary of nucleotide sequence variation for each MLST locus

MLST locusSequence length (bp)No. of allelesNo. of polymorphic sitesNucleotide diversity (SE)dS/dN ratio (P value)a
arcC46514200.018 (0.004)2.499 (0.014)
aroE42013270.014 (0.003)3.255 (0.001)
gtr4389180.014 (0.003)3.403 (0.001)
mutS412890.007 (0.002)0.232 (0.817)
pyrR42811180.016 (0.004)3.403 (0.001)
tpi42411120.008 (0.002)2.929 (0.004)
yqiL41616160.011 (0.003)2.549 (0.012)
  • a The hypothesis tested is neutrality (dS = dN). The P value indicates the significance of the difference between dS and dN and must be <0.05 for hypothesis rejection at a 5% level.