Fig. 1From: Genomic prediction of piglet response to infection with one of two porcine reproductive and respiratory syndrome virus isolatesPrincipal components analysis of the SNP genotype data. Each point represents a single animal, with each color representing one of the eight genetic lines used in this study. The numbers for each genetic line match those shown in Table 1. The breed makeup of the animals for each genetic line is shown in the same color. LR landrace, LW large white, and Y yorkshire. Breeds are presented as breed of sire × breed of damBack to article page