Table 1. Overall results of co-resistance, phylogenetic grouping, MLST and plasmid replicon analysis of CMY-2producing E. coli isolates of food producing animals in China.
Strains | Source | Other resistance genes | Phylogen. group | MLST | blaCMY-2 linked-element upstream | Gene cassettes inserted in class1 and 2 integrons | Plasmid transfer | Co-transferred resistant gene | Plasmid replicon types and approx. size (kb) | |
ST | STCa | |||||||||
L145 | Pig | blaOXA-1,oqxA,floR | A | 10 | STC10 | ISEcp1 | ND | - | - | - |
L147 | Pig | oqxA | A | 10 | STC10 | ISEcp1 | ND | - | - | - |
L393 | Chicken | blaTEM-1,qnrS1,oqxA,floR,aac-(6′)-Ib-cr | A | 2690 | STC10 | ISEcp1 | ND | + | qnrS1,floR,aac-(6′)-Ib-cr | A/C,160 |
L699 | Chicken | blaTEM-1,qnrS1,floR | A | 48 | STC10 | ISEcp1 | class2: sat1+aadA1 | + | qnrS1,floR | A/C,200 |
L78 | Pig | blaCTX-M-14,blaTEM-1,qnrS1,oqxA,floR | A | 3244 | STC10 | ISEcp1 | ND | + | blaTEM-1,qnrS1,floR | A/C,160 |
L667 | Pig | blaTEM-1,oqxA | B1 | 3403 | STC101 | ISEcp1 | class1: drfA17+aadA5 | - | - | - |
L671 | Pig | blaTEM-1,blaOXA-1,oqxA,qnrS1 | B1 | 359 | STC101 | ISEcp1 | class1: drfA17+aadA5 | + | qnrS1 | K,200 |
L669 | Pig | blaTEM-1,oqxA | B1 | 359 | STC101 | ISEcp1 | class1: drfA17+aadA5 | - | - | - |
L670 | Pig | blaTEM-1,oqxA,aac-(6′)-Ib-cr | B1 | 359 | STC101 | ISEcp1 | class1: drfA17+aadA5 | - | - | - |
L679 | Pig | blaTEM-1,qnrS1,oqxA,floR | B1 | 101 | STC101 | ISEcp1 | ND | - | - | - |
L1119 | Pig | blaTEM-1,qnrS1,aac-(6′)-Ib-cr,oqxA,floR | B1 | 101 | STC101 | ISEcp1 | ND | + | qnrS1,floR | A/C,160 |
L518 | Pig | blaTEM-1,oqxA,rmtB | D | 648 | none | ISEcp1 | ND | - | - | - |
L461 | Duck | blaCTX-M-55,blaTEM-1,qnrS1,oqxA,floR,rmtB | D | 648 | none | ISEcp1 | class1: aadA22 | + | blaCTX-M-55, qnrS1 | FIB,40 |
L351 | Chicken | floR,rmtB | B1 | 155 | ST155C | ISEcp1 | ND | + | floR | A/C,200 |
L391 | Chicken | blaTEM-1,qnrS1,floR | B1 | 155 | ST155C | ISEcp1 | class1: dfrA1+aadA1 | + | qnrS1,floR | A/C,160 |
L392 | Chicken | blaTEM-1,qnrB6,floR | B1 | 2294 | ST155C | ISEcp1 | class1: dfrA1+aadA1 | + | floR | A/C,160 |
L813 | Pig | blaTEM-1,qnrS1,rmtB,aac-(6′)-Ib-cr | B1 | 156 | none | ISEcp1 | ND | + | qnrS1 | FIB,40 |
L361 | Duck | blaTEM-1,qnrS1,aac-(6′)-Ib-cr | D | 156 | none | ISEcp1 | ND | - | - | - |
T117 | Pig | blaTEM-1 | A | 1114 | none | ISEcp1 | ND | - | - | - |
A10-2 | Pig | blaTEM-1,blaOXA-1,qnrS1,oqxA,floR | A | 1114 | none | ISEcp1 | ND | - | - | - |
L1039 | Pig | blaTEM-1,oqxA,floR | D | 457 | ST457C | ISEcp1 | ND | - | - | - |
T43 | Pig | oqxA | D | 3376 | ST457C | ND | ND | - | - | - |
C42 | Pig | floR | A | 3402 | none | ISEcp1 | ND | - | - | - |
T26 | Pig | blaTEM-1,oqxA,floR | A | 3404 | none | ND | ND | + | blaTEM-1,floR | A/C,160 |
L1166 | Pig | floR | A | 3269 | none | ISEcp1 | ND | + | floR | A/C,160 |
L653 | Pig | blaTEM-1,oqxA,floR | A | 3014 | none | ISEcp1 | ND | - | - | - |
L215 | Chicken | blaTEM-1 | D | 362 | none | ISEcp1 | class1: drfA17+aadA5 | - | - | - |
L349 | Chicken | qnrS1,floR | D | 354 | none | ISEcp1 | class1: drfA17+aadA5 | + | qnrS1,floR | A/C,200 |
L394 | Chicken | qnrS1,blaTEM-1,floR | B1 | 3245 | none | ISEcp1 | class1: orf+aadA2 | + | blaTEM-1,qnrS1,floR | HI2,220 |
L398 | Chicken | - | B1 | 1431 | none | ND | class1: dfrA17+aadA5 | - | - | - |
L399 | Chicken | qnrS1 | D | 69 | none | ISEcp1 | ND | + | qnrS1 | K,160 |
STC, ST complex.
ND, not detected.