Table 2.

Summary Statistics.

Candidate GRP genes	Population	n	θ	π (total)	π (synonymous sites)	π (nonsynonymous sites)
CIPRO37.40.1	Sympatric Type A	28	0.026	0.022	0.042	0.016
	Allopatric Type A	24	0.013	0.012	0.013	0.010
	Sympatric Type B	16	0.019	0.016	0.041	0.008
	Allopatric Type B	8	0.043	0.050	0.109	0.032
CIPRO60.5.1	Sympatric Type A	20	0.002	0.002	0.000	0.003
	Allopatric Type A	22	0.024	0.018	0.030	0.015
	Sympatric Type B	24	0.035	0.034	0.057	0.025
	Allopatric Type B	20	0.021	0.026	0.042	0.019
CIPRO100.7.1	Sympatric Type A	24	0.011	0.009	0.017	0.005
	Allopatric Type A	26	0.007	0.007	0.012	0.004
	Sympatric Type B	22	0.018	0.020	0.031	0.015
	Allopatric Type B	8	0.017	0.022	0.030	0.017
Control genes
CIPRO53.35.1	Sympatric Type A	22	0.008	0.006	0.027	0.001
	Allopatric Type A	32	0.006	0.005	0.020	0.000
	Sympatric Type B	32	0.013	0.011	0.043	0.002
	Allopatric Type B	28	0.016	0.015	0.042	0.007
mtCOI	Sympatric Type A	10	0.000	0.000	0.000	0.000
	Allopatric Type A	12	0.006	0.004	0.021	0.000
	Sympatric Type B	9	0.005	0.005	0.023	0.000
	Allopatric Type B	11	0.005	0.005	0.021	0.001

n is the number of alleles sequenced from each population.