Fig. 4.
From: Association of Salmonella virulence factor alleles with intestinal and invasive serovars
Heatmap showing hierarchical clustering of 500 Salmonella strains with corresponding alleles across the 70 virulence factors studied. The seven serovars each with 52-75 strains are shown on the left of the heatmap, VFs on the top, arrayed in the order genes are located on the chromosome. Clade numbers, biovars (S. Gallinarum) and lineages (S. Newport) are shown on the left. Colors indicate different alleles, with black being the dominant allele for each VF among all 500 Salmonella; blue-green, the 2nd most frequent allele, etc. up to the 20th (and more) most frequent allele in purple, as shown on the top left (1-20); missing VFs are shown in white