Fig. 3: Resistome clustering differs by drug class.
From: Genomic analysis of sewage from 101 countries reveals global landscape of antimicrobial resistance

PCA of the resistome were carried out individually on subsets of ARGs providing resistance to different drug classes. The contours are defined in Fig. 2. Arrows show the ARGs with the highest variance in each drug class. a Beta-lactam. b Tetracycline. c Aminoglycoside. d Macrolide. Plots for the remaining drug classes are shown in Supplementary Fig. 8.