RNA-seq-based analysis of drug-resistant Salmonella enterica serovar Typhimurium selected in vivo and in vitro.

ABSTRACT: The aim of this study was to characterize the mechanism of fluoroquinolone (FQ) resistance in Salmonella Typhimurium. We established the Caenorhabditis elegans-Salmonella Typhimurium model to select for ciprofloxacin resistance in Salmonella Typhimurium colonizing C. elegans, generating the resistant strains TN4. Gradient doses of ciprofloxacin were used to generate the resistant strain TW4 in vitro. RNA sequencing was used to establish the whole-transcriptome profile of three strains of Salmonella Typhimurium. The gene expression patterns of resistant strains TN4 and TW4 differed from those of the parental strain. In TN4, 2,277 genes were differentially expressed (1,833 upregulated and 444 downregulated) relative to the parental strain, and in TW4, 3,464 genes were differentially expresse

SUBMITTER: Li L 

PROVIDER: S-EPMC5381912 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature