Fig. 3.

Clustering of species by SLC count. Species (x-axis) were hierarchically clustered based on their SLC family sizes (y-axis) in order to see whether evolutionarily related species showed similar SLC profiles. Species are color coded according to their taxonomic group (blue, Tribolium; red, Hymenoptera; brown, Diptera; magenta, Hemiptera; purple, Arachnida; green, Lepidoptera; black, other). Boxes toward the red end of the spectrum have a relatively large family, whereas bluer boxes have lower copy numbers. Many related species cluster closely together, but other areas of the graph are relatively diverse in terms of their composition.