TABLE 1.
Antibiotic-resistant E. coli genomes found in the ceca of broiler chicks
| Isolate identifier | Resistance phenotypea | Antibiotic resistance gene(s)b | Plasmidsc | Phylogroup | MLST |
|---|---|---|---|---|---|
| Ec-FL1-1X | Amp Gen Str Fis Tet | aac(3)-Iid aph(3′)-Ia aph(6)-Id aph(3″)-Ib blaTEM-1B tet (B) sul2 | IncF:B:A-, IncI1 | D | 69 |
| Ec-FL2-2X | Amp Gen Str Fis Tet | aac(3)-Iid aph(3′)-Ia aph(6)-Id aph(3″)-Ib blaTEM-1B tet (B) sul2 | IncF:B:A-, IncI1 | D | 69 |
| Ec-FL2-5X | Amp Gen Str Fis Tet | aac(3)-Iid aph(3′)-Ia aph(6)-Id aph(3″)-Ib blaTEM-1B tet (B) sul2 | IncF:B:A-, IncI1 | D | 69 |
| Ec-FL1-2Xd | Gen Str Tet | aadA1 aac(3)-Via tet(A) | IncF:B:A- IncI1 IncI2 Col8282 ColRNAI | F | 6858 |
| Ec-FL1-5Xd | Gen Str Tet | aadA1 aac(3)-Via tet(A) | IncF:B:A- IncI1 IncI2 Col8282 ColRNAI | F | 6858 |
a
Amp, ampicillin; Gen, gentamicin; Str, streptomycin; Tet, tetracycline; Fis, sulfisoxazole.
b
Boldface denotes antibiotic resistance genes and phenotype carried on the chromosome.
c
Illumina short reads and PacBio long reads were combined to assemble the plasmids of E. coli strains Ec-FL1-1X and Ec-FL1-2X.
d
E. coli isolates carrying IncI1-pST26 with >99% identical DNA sequence with p2ST26 acquired by S. Heidelberg.