Table 2.

Polymorphism of M-type and F-type mtDNAs

gene	pD nt	95% CI	pD nt	95% CI	pD aa	95% CI	pD aa	95% CI
	F type		M type		F type		M type
atp6	0.016	0.012–0.020	0.019	0.013–0.025	0.019	0.011–0.027	0.020	0.010–0.030
cox3	0.018	0.014–0.022	0.021	0.015–0.027	0.025	0.015–0.035	0.026	0.016–0.036
nd3	0.013	0.007–0.019	0.006	0.002–0.010	0.021	0.009–0.033	0.013	0.000–0.027
nd4	0.015	0.011–0.019	0.013	0.009–0.017	0.022	0.016–0.028	0.015	0.009–0.021
nd5	0.008	0.006–0.010	0.016	0.012–0.020	0.012	0.008–0.016	0.014	0.008–0.020
nd6	0.019	0.013–0.025	0.018	0.012–0.024	0.025	0.013–0.037	0.025	0.011–0.039
rphf22	0.009	0.003–0.015	NA	NA	0.014	0.004–0.024	NA	NA
rphm21	NA	NA	0.006	0.002–0.010	NA	NA	0.007	0.001–0.013
gene	pS	95% CI	pS	95% CI	pN	95% CI	pN	95% CI
	F type		M type		F type		M type
atp6	0.029	0.015–0.043	0.031	0.017–0.045	0.011	0.005–0.017	0.012	0.006–0.018
cox3	0.031	0.017–0.045	0.037	0.021–0.053	0.013	0.007–0.019	0.015	0.009–0.021
nd3	0.016	0.004–0.028	0.005	0.000–0.013	0.011	0.003–0.019	0.006	0.000–0.012
nd4	0.027	0.017–0.037	0.021	0.013–0.029	0.012	0.008–0.016	0.008	0.004–0.012
nd5	0.013	0.005–0.021	0.034	0.024–0.044	0.005	0.003–0.007	0.008	0.004–0.012
nd6	0.037	0.019–0.055	0.020	0.006–0.034	0.012	0.006–0.018	0.013	0.005–0.021
rphf22	0.020	0.002–0.038	NA	NA	0.007	0.001–0.013	NA	NA
rphm21	NA	NA	0.011	0.001–0.021	NA	NA	0.003	0.000–0.007

Note: pD nt = nucleotide p-distance; pD aa = amino acid p-distance; 95% CI = 95% confidence interval; pS = synonymous polymorphism (number of synonymous substitutions per synonymous site); pN = nonsynonymous polymorphism (number of nonsynonymous substitutions per nonsynonymous site); NA = not available. Only genes with ≥ 10 sequences available were utilized in the analyses.