Table 3. Important characteristics and housekeeping gene substitutions of P. aeruginosa.

Allele	Size (bp)	H	PS	π	θ	G+C	dN	dS	dN/dS	PHI test
acsA	390	11	12	0.00747	0.00715	0.6895	0.00012	0.02961	0.004053	0.08185
aroE	498	9	15	0.00674	0.00646	0.7044	0.00731	0.00553	1.321881	0.004564
guaA	373	9	8	0.00351	0.0046	0.6592	0	0.01445	0	1.0
mutL	442	8	6	0.00254	0.00291	0.6753	0	0.01008	0	0.04163
nuoD	366	5	6	0.00114	0.00352	0.6337	0	0.00481	0	n.a.
ppsA	370	10	8	0.00475	0.00464	0.6639	0.00665	0	n.a.	0.2692
trpE	443	12	17	0.00758	0.00823	0.6644	0.01104	0	n.a.	2.922E-4
Concatenate	2882	64	72	0.00482	0.00536	0.67006	0.00359	0.00921	0.389578	1.73E-13

H: Haplotype; PS: Polymorphic sites; Π: Nucleotide diversity; Θ: Average number of nucleotide differences; G+C: Guanine and cytosine content; dN: Number of nonsynonymous substitutions; dS: Number of synonymous substitutions. PHI test: Statistically significant recombination (p<0.05).