Table 4 The ratio of nonsynonymous substitution (K_a) vs. synonymous substitution (K_s) among the mitochondrial genes

nd6

0.056

1.248

0.045

atp6

0.040

0.598

0.067

atp8

0.162

0.557

0.290

cox1

0.009

0.866

0.010

cox2

0.024

1.123

0.021

cox3

0.026

1.601

0.016

cytb

0.051

1.271

0.040

nd1

0.023

1.847

0.012

nd2

0.043

0.665

0.064

nd3

0.063

0.929

0.068

nd4

0.028

1.008

0.028

nd4l

0.040

0.874

0.046

nd5

0.056

1.123

0.050