Table 4. Comparison of substitution rates between congeneric orphan genes and orthologs.

	Cicurina		Habronattus		Nesticus
	Orphans	Orthologs	Orphans	Orthologs	Orphans	Orthologs
Median ω	0.380	0.081	0.257	0.001	0.276	0.017
Median Ka	0.016	0.002	0.008	0	0.009	8E-04
Median Ks	0.039	0.029	0.033	0.021	0.032	0.032
ω ≤ 0.33 (%)	42.20	88.39	59.42	95.68	55.43	95.22
0.33 < ω ≤ 0.67 (%)	32.97	8.41	23.70	3.61	25.89	3.80
0.67 < ω ≤ 1.0 (%)	10.77	1.91	9.81	0.56	8.91	0.68
ω > 1.0 (%)	14.1	1.29	7.1	0.15	9.77	0.29