Additional file 22 of Proteobacteria explain significant functional variability in the human gut microbiome

Figure S11. Number of leaves correlates with tree density, but tree density corrects for the overall rate of evolution. The number of leaves (i.e., individual sequences) was plotted vs. tree density on a log-log scatter plot, with each circle representing one gene family. Two outliers with lower density than expected were plotted in colors: a putative transposase (green) and a Staphylococcus leukotoxin (red). Both families have large numbers of sequences from the same organism. (PDF 492 kb