Table 4.

Analyses of genetic variance of environmental plasticity for heterozygous chromosome 3 substitution lines.

source	sternopleural bristle number					abdominal bristle number
d.f.a	MSb	F	p	σ2c	MSb	F	p	σ2c
sex	1	167.688	28.31	<0.0001	fixed	20.383	0.58	0.4451	fixed
line	289	7.853	1.33	0.0083	0.487	63.213	1.81	<0.0001	7.146
sex×line	288	5.919	0.90	0.8418	−0.327	34.852	0.97	0.6240	−0.598
error	571	6.569			6.569	36.040			36.040

^aDegrees of freedom. The design is unbalanced as some lines produced individuals of only one sex.

^bType III mean squares.

^cVariance component.