Figure 3. LD plots in which the upper triangular matrix represents the P values calculated using Fisher's Exact test; the lower triangular matrix represents r ², the coefficient of determination between allelic states at pairs of sites.

Colored shading in the LD plot indicates statistical significance in linkage (P<0.01) and strength of associations (0.8<r ²<1) among sites. In the reference population from the United States, there are six and five distinct LD blocks (outlined squares) in A. flavus L and A. parasiticus, respectively, based on P and r². Aspergillus parasiticus was not found in India and Benin; A. flavus S and A. minisclerotigenes were not found in India and the United States and infrequently sampled in Argentina such that recombination could not be determined.