Table 1. Overview of quantitative genetic scenarios.

Scenario	Major genes		Minor genes
	na	sa	ni	si
I	3	30	—	—
II	5	18	—	—
III	—	—	9	10
IV	—	—	18	5
V	2	30	3	10
VI	2	30	6	5
VII	1	30	6	10
VIII	1	30	12	5

n_a, number of major genes; s_a, effect size of major genes; n_i, number of minor genes; s_i, effect size of minor genes.