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. 2019 Apr 24;10:790. doi: 10.3389/fmicb.2019.00790

FIGURE 2.

FIGURE 2

Schematic representation of different types of gene cassette arrays (aac equal to aac(6′)-Ib or aac(6′)-Ib-cr). Accession numbers in Genbank. aAmong the 37 isolates, 25 of the integron variable regions were aadB-aadA2, and the other 12 were aadB-aadA2 and aac(6′)-Ib-aar3. bAmong the 2 isolates, 1 of the integron variable regions were dfrA1-orfC, and the other 1 was dfrA1-orfC and dfrA1- aac(6′)-Ib -catB3-aar3. cAmong the 6 isolates, 5 of the integron variable regions were dfrA12-orfF-aacA2, and the other 1 was dfrA12-orfF-aacA2 and aac(6′)-Ib -cmlA1, the second array (aac(6′)-Ib -cmlA1) is the same as C(aac(6′)-Ib -cmlA1). dAmong the 4 isolates, 3 of the integron variable regions were dfrA32-ereA-aacA2, and the other 1 was dfrA32-ereA-aacA2 and aac(6′)-Ib -bla-OXA-1-catB3-aar3. (Sequences of PCR products were analyzed with BLAST to identify target homologous sequences and their GenBank accession numbers. https://blast.ncbi.nlm.nih.gov/Blast.cgi).