Table 1.

Sequence variations for three housekeeping genes of Xanthomonas oryzae pv. oryzae and Xanthomonas oryzae pv. oryzicola strains used in this study.

Gene	gyrB	rpoD	glnA
Fragment size (bp)	801	737	887
G + C content (mol.%)	65.4	65.1	62.4
Haplotype (H)	10	5	4
Polymorphic sites (N)	24	12	13
Percentage of variables sites	3	1.6	1.5
Nucleotide diversity per site (π)	0.01097	0.00688	0.00577
Ts/Tv*	1.005	1.932	2.552
K a †	0.05199	0.02654	0.00820
K s †	0.28605	0.23444	0.24899
K a/K s †	0.150	0.096	0.027
Tajima's D ‡	1.98808	2.55462	2.18633

^* Transition/transversion ratios (Ts/Tv) were determined using Kimura's two‐parameter method (Kimura, 1980).

^† Synonymous (K _s) and nonsynonymous (K _a) substitution rates were determined using the method of Nei and Gojobori (1986).

^‡ The values of Tajima's D are not significant (P > 0.05).