Fig. 4From: Tetracycline-resistant bacteria and ribosomal protection protein genes in soils from selected agricultural fields and livestock farmsPCA biplot clustering based on antibiotic resistance abundance. Each number represents an individual sample tested in this study and clustered according to the abundance of three tetracycline resistance genes. (# 1–3: GAF-1 to GAF-3; # 4–6: GAH-1 to GAH-3; # 7: Gimje-manure; # 8, 9: IAF-1 and IAF-2; # 10, 11: IAH-1 and IAH-3; # 12: Iksan-manure; # 13–15: JAF-1 to JAF-3; # 16–18: JAH-1 to JAH-3; and # 19: Jangsu-manure)Back to article page