Figure 1.

Plots of r² over physical distance in base pairs, with curves showing the decay of LD modeled on the expectations of Hill and Weir (1988). The approximate distance at which E(r²) decays to 0.2 (approximately half the maximum estimated value across all nine loci) for each decay curve is 104, 122, >579, 25, 7, 14, 186, 76 and 11 bp for Apt, Cycle, Cyp303a1, Cyp305b1, Period, Phc, SCAP, Tc and Tpi, respectively. Maximum values of E(r²) ranged from 0.39 to 0.51. The number of alleles sampled for each locus is reported in Table 1.