In vivo transcriptional response of APEC E058 bacteria collected from the blood of infected chickens was identified.
The genes highly expressed involved in metabolism, iron acquisition, virulence, stress response, and so on.
The reliability of the microarray data was confirmed by performing quantitative real-time PCR on 12 representative genes.
Several significantly upregulated genes were selected to study their role in APEC pathogenesis.
The data will help to better understand the mechanisms of APEC pathogenesis.