Table 3.

The M : F gene expression ratios for Z-linked and autosomal loci in Bombyx mori for various embryonic stages and head tissues.

sample	Z-linked loci	autosomal loci	(a) median Z-linked (M : F)	(b) median autosomal (M : F)	(a÷b) Z : A ratio of medians	MWU p-values; male Z ≠ female Z	MWU p-values; male A ≠ female A	MWU p-values; autosomal M : F ≠ Z-linked M : F
78 h	310	8102	1.534561	1.397903	1.097748	0.0005608	<2.2 E-16	0.005881
96 h	365	8983	2.039096	1.359739	1.499623	2.13 E-09	<2.2 E-16	<2.2 E-16
120 h	442	9632	0.884246	0.997452	0.886504	0.08008	0.01172	1.59 E-09
Head	339	7210	0.935571	0.916635	1.020661	0.5517	0.006069	0.4517