Table 2.

Significance Levels for Comparisons of d_N/d_S between Autosomal and X-Linked Genes

Lineage	Expressiona	Comparison	Pb
Melanogaster	M	Auto versus X	<0.001*
	F	Auto versus X	0.1741
	U	Auto versus X	0.0245
Obscura	M	Auto versus XL	<0.001*
		Auto versus XR	0.0047*
		XL versus XR	<0.001*
	U	Auto versus XL	<0.001*
		Auto versus XR	0.0013*
		XL versus XR	0.1812
	F	Auto versus XL	<0.001*
		Auto versus XR	0.0052*
		XL versus XR	0.0077

^a“M” indicates male-biased genes, “F” indicates female-biased genes, and “U” indicates unbiased genes.

^bAs determined by Mann–Whitney U tests. Values marked with asterisks are significant after Bonferroni correction.