Table 2. Interaction between the level of polymorphism at loci in inbred racial stocks before the fusion and divergence of these loci during restricted gene flow fission.

Inbred racial stock	Frequency of the least common allele	P × N fission, loci counts			P × C fission, loci counts
		Diverged	Non-diverged	Pa	Diverged	Non-diverged	Pa
P stock	<0.2	10	35	0.171	18	123	0.021
	>0.2	3	26		6	12
Non-P stock	<0.2	29	122	0.698	10	107	0.002
	>0.2	23	88		34	118
Average across hosts	<0.2	20	79	0.770	14	115	0.017
	>0.2	13	57		20	65

Abbreviations: C, cereal race; N, nettle race; P, pea race.

^aFisher exact test mid-P two-tailed probability.