FIG 3.

Antibiotic resistance gene profiles of multidrug-resistant E. coli strains. The antibiotic resistance genes (ARGs) of 11 representative multidrug-resistant E. coli strains were identified by comparing their whole-genome sequences against the Comprehensive Antibiotic Resistance Database (CARD). ARGs with ≥70% identity are indicated by dark gray blocks, and those with <70% identity are shown in light gray blocks. ARGs were classified into different categories (colored blocks with numbers) based on their functions, and the categories are listed next to the gene names. Genes with mutations conferring antibiotic resistance are marked by asterisks.