Correlation between MIRU copy number and RD/mate pair. (a) MIRU copy number vs. mean RD. The mean RD value for each locus was determined by averaging RD across the entire locus. All loci containing the same copy number as determined by Sanger sequencing were subsequently binned and averaged, providing a single RD value for each copy number observed in the data. (b) Graph of MIRU copy number vs. average mate pair distance. Average mate pair distance values were generated as described for RD.