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a) Alignment of mcr‐1‐bearing DNA segments from the five E. coli strains. Red arrows denote the mcr‐1 gene, while blue arrows represent insertion sequences; yellow and purple arrows are standard for other coding sequences. b) Alignment of mcr‐3‐bearing structures of various plasmids. Red arrows denote mcr‐3 genes, while blue arrows indicate insertion sequences; yellow arrows represent other coding sequences, and green arrows stand for other resistance genes.
