Fig. 4
Hierarchical heat map showing differential gene expression over time. Normalized log2 transformed values as determined by Affymetrix GeneChip® porcine gene 1.0 ST array in PBMCs of German Landrace pigs at 6, 24 and 72 h post PRRSV vaccination. The cutoff value of log2 fold change as either ˃1.5 or ˂ −1.5 and FDR <0.05 was considered for statistical significance. Each column represents one array from each of replicate piglets