Figure 1From: Correlation among genetic, Euclidean, temporal, and herd ownership distances of porcine reproductive and respiratory syndrome virus strains in Quebec, CanadaCorrelogram showing Mantel r statistic computed on binary matrices of genetic (≥98%, <98% homology) and Euclidean distances for different thresholds (km). Results from 7381 different pairwise combinations of 122 PRRSV ORF5 sequences. Dark dots indicate significant correlation (P ≤0.003) after 9999 permutations of matrices.Back to article page