Table 2.

Both sibs in environmental Condition 1

Genotype		Genotypic effect		Environmental effect		Additive and interaction		Dominance and interaction		Environment		Partitioned effects
Sib1	Sib2	Sib1	Sib2	Sib1	Sib2	Between mean	Within diff/2	Between mean	Within diff/2	Between mean	Within diff/2	Sib1 (B + W)	Sib2 (B − W)
A1A1	A1A1	a	a	0	0	ab	0	0	0	0	0	ab	ab
A1A1	A1A2	a	d	0	0	½ ab	½ aw	½ db	−½ dw	0	0	½[ab + aw] + ½[db − dw]	½[ab − aw] + ½[db + dw]
A1A1	A2A2	a	−a	0	0	0	aw	0	0	0	0	aw	−aw
A1A2	A1A1	d	a	0	0	½ ab	−½ aw	½ db	½ dw	0	0	½[ab − aw] + ½[db + dw]	½[ab + aw] + ½[db − dw]
A1A2	A1A2	d	d	0	0	0	0	db	0	0	0	db	db
A1A2	A2A2	d	−a	0	0	−½ ab	½ aw	½ db	½ dw	0	0	½[−ab + aw] + ½[db + dw]	−½[ab + aw] + ½[db − dw]
A2A2	A1A1	−a	a	0	0	0	−aw	0	0	0	0	−aw	aw
A2A2	A1A2	−a	d	0	0	−½ ab	−½ aw	½ db	−½ dw	0	0	−½[ab + aw] + ½[db − dw]	½[−ab + aw] + ½[db + dw]
A2A2	A2A2	−a	−a	0	0	−ab	0	0	0	0	0	−ab	−ab

The main effect for the environmental and the G × E interaction are zero in both sibs