TY - JOUR
T1 - Phylogenetic Analysis and Detection of Related Genes of High-Pathogenicity Island of Escherichia coli Strains Isolated from Chicken in Hebei Province, China
AU - Shi, Qiumei AU - Zhang, Yanying AU - Gao, Guisheng AU - Fang, Hai AU - Chen, Cuizhen AU - Ren, Gaili AU - Chang, Huoju AU - Zhang, Donglin
JO - Journal of Animal and Veterinary Advances
VL - 12
IS - 13
SP - 1177
EP - 1182
PY - 2013
DA - 2001/08/19
SN - 1680-5593
DO - javaa.2013.1177.1182
UR - https://makhillpublications.co/view-article.php?doi=javaa.2013.1177.1182
KW - E. coli
KW -Virulence Island
KW -LEE
KW -HPI
KW -serotype
AB - The detections of the Locus of Enterocyte Effacement Pathogenicity
Island (LEE) and High Pathogenicity island (HPI) in 26 E. coli samples
from chickens were conducted by PCR. Ler and eaeA genes located
in the core of LEE Virulence Island while irp2, fyuA and asn_RNA_intB
genes in HPI Pathogenicity Island were all detected. At the same time, O serotype
identification of 26 E. coli samples were conducted. The results showed
that the positive rate of Ler gene in LEE Virulence Island was 3.85%
(1/26) while eaeA was 3.85% (1/26). The rate of fyuA gene in HPI pathogenicity
island was 42.3% (11/26) while irp2 was 73% (19/26), irp2+fyuA+
was 42.3% there was no asn_RNA_intB gene. The results of serotype identifications
showed that 15 strains related to serotype O4, O91, O78, O107, O38, O111, O88,
O53, O24, O9 and O11 except 11 strains. Among 15 strains, O91, O78 and O38 were
dominant serotypes whose proportion were 20 (3/15), 20 (3/15) and 26.7% (4/15),
respectively. The nucleotide sequence similarities were >95% for 26 strains
isolated from chickens.
ER -