Table 1. Polymorphism summary and tests for neutral evolution in each locus of the Guangdong isolates and the global set of strains.

Parameters	Phylogenetic Marker (a/b)
	aroC	dnaN	hemD	hisD	purE	sucA		thrA	Concatenated loci
No. ofsequences	294/1186	294/1186	294/1186	294/1186	294/1186	294/1186		294/1186	294/1186
No. ofcharacters	501/501	501/501	432/432	501/501	399/399	501/501		501/501	3336/3336
No. ofcodons	167/167	167/167	144/144	167/167	133/133	167/167		167/167	1112/1112
	DNA polymorphism analysis (a/b)
No. ofmutations (η)	5/14	9/10	0/9	15/23	4/11		5/14	21/29	59/110
synonymouschanges	5/13	7/7	0/3	13/17	3/8		4/11	21/28	53/87
nonsynonymouschanges	0/1	2/3	0/6	2/6	1/3		1/3	0/1	6/23
nucleotideVariability	0.998%/2.794%	1.796%/1.996%	0/2.083%	2.994%/4.591%	1.002%/2.757%		0.998%/2.794%	4.191%/5.788%	0.177%/3.297%
amino acidVariability	0/0.599%	1.197%/1.796%	0/4.166%	1.197%/3.593%	0.752%/2.256%		0.598%/1.796%	0/0.598%	0.539%/2.068%
nucleotidediversity (Pi)	0.00047/0.00113	0.00125/0.00145	0/0.00033	0.00026/0.00013	0.00012/0.00070		0.00039/0.00076	0.00087/0.00130	0.0005/0.00084
allele	2/6	4/5	1/5	3/9	3 (1)/9		3 (1)/11	6 (1)/15	13 (10)/47
	Neutrality test (a/b)
Tajima’s D	−1.29146 (p>0.10)/−1.47225 (p>0.10)	−1.22590 (p>0.10)/−0.86813 (p>0.10)	na/−1.67213(0.10>p>0.05)	−2.31354(p<0.01)/−2.30983 (p<0.05)	−1.56342 (0.10>p>0.05)/−1.62052(0.10>p>0.05)		−1.38243(p>0.10)/−1.69198 (0.10>p>0.05)	−2.26094 (p<0.01)/−2.05595 (p<0.05)	−2.40175 (p<0.01)/−2.23945 (p<0.01)

a/b: the Guangdong isolates/the Global set of isolates.