Table 2.

Rates of change in coding sequences

	dN	dS	dN/dS
coxI	0.028 (0.015)	1.440 (0.638)	0.021 (0.014)
hsp82	0.022 (0.014)	0.951 (0.749)	0.031 (0.032)
mmr-b main repeats	0.044 (0.035) *	0.287 (0.204) *	0.144 (0.088) *
mmr-b final repeats	0.050 (0.036) * +	0.303 (0.183) * +	0.157 (0.095) * +

Mean of all pairwise comparisons within the B. plicatilis species complex, with (s.d.); * indicates a value statistically significantly different than that for hsp82 or coxI; + indicates a value statistically significantly higher than that for mmr-b main repeats (Mann–Whitney U-test, p < 0.001, two tailed test).