*the aadaI primer was used in combination with the 5’-CS primer for amplification of class 1 integrons lacking the 3’-conserved segment. The other primers were used pairwise as listed. Primers used in
*the aadaI primer was used in combination with the 5’-CS primer for amplification of class 1 integrons lacking the 3’-conserved segment. The other primers were used pairwise as listed.Primers used in