Table 1.

Comparison of LD values between pairs of polymorphic sites in different genes

Comparison	Degree of linkage*	Mean ± SD		f (P < 0.01)†	nobs
		r2	D′
d8 vs. tb1	Tightly-linked	0.046  ± 0.059	0.486  ± 0.325	0.157	624
d8/tb1 vs. id1	Loosely-linked	0.014  ± 0.021	0.237  ± 0.252	0.001	825
d8/tb1/id1 vs. d3	Unlinked	0.022  ± 0.030	0.334  ± 0.309	0.018	2,730
All unlinked site pairs		0.024  ± 0.001	0.338  ± 0.005	0.036	4,179

^*Tightly-linked loci are ≈1 cM apart; loosely-linked loci are ≈22 cM apart; unlinked loci are on different chromosomes. 

^† Percentage of site pairs with LD P value < 0.01.