TABLE 3.

Frequencies of SNPs

Gene	SNP	Position no.	Enzyme	% of strains the same as PAO1a	% of strains not the same as PAO1b
oriC	T→C	267	AlwNI	59	41
oprL	T→C	396	BstUI	44	56
alkB2	G→A	471	MspA1I	49	51
alkB2	A→G	1047	Fnu4HI	38	62
citS	A→G	533	AciI	69	31
citS	G→C	896	MnlI	45	55
oprI	T→C	195	AciI	25	75
ampC	G→A	789	MspI	79	21
ampC	C→T	883	MnlI	80	20
ampC	C→T	1060	BstUI	77	23
ampC	G→A	1150	HinfI	71	29
ampC	G→C	1166	AlwNI	85	15
ampC	T→C	1585	AgeI	78	22
ampC	C→A	1639	BsrI	35	65

^afliC type b (the same as in PAO1) appeared in 39% of the strains.

^bfliC type a (not the same as in PAO1) appeared in 61% of the strains.