Table 2. Genetic diversity among mutS alleles in S. enterica SARB clades.

	Mean nucleotide diversity ± SE, %
Clade (n)	B	C	D	E	F	G	H	I
A (15)	0.99 ± 0.21	0.96 ± 0.23	1.02 ± 0.24	1.37 ± 0.29	0.96 ± 0.27	1.00 ± 0.22	1.12 ± 0.26	1.24 ± 0.29
B (13)	0.92 ± 0.21	0.92 ± 0.21	1.20 ± 0.25	0.82 ± 0.23	0.93 ± 0.20	0.90 ± 0.66	1.00 ± 0.25
C (12)	0.80 ± 0.19	0.88 ± 0.20	0.56 ± 0.20	0.72 ± 0.19	0.82 ± 0.22	1.06 ± 0.28
D (5)	1.18 ± 0.23	0.68 ± 0.21	0.86 ± 0.20	0.86 ± 0.21	1.08 ± 0.27
E (2)	0.82 ± 0.21	1.04 ± 0.23	1.15 ± 0.25	1.36 ± 0.29
F (7)	0.60 ± 0.18	0.76 ± 0.23	0.84 ± 0.26
G (7)	0.64 ± 0.16	1.01 ± 0.26
H (5)	0.85 ± 0.25

Mean pairwise mutS sequence variation among the nine SARB clades defined in Fig. 1. The distances shown are Jukes—Cantor-corrected and were calculated by using the program mega2 (26).