Fig. 1

Manhattan plot for sample-to-positive (S/P) ratio. Each data point represents a 1-Mb SNP window plotted against the proportion of total genetic variance accounted for by the markers (TGVM). The chromosomes (1 to 18, and X) and SNPs are ordered from left to right. Plots a, b, and c represent results for the original findings by Serão et al. [3] using the outbreak dataset, and for the gilt acclimation (GA) dataset using S/P_0% and S/P_100% , respectively