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Differentially expressed genes in rough and smooth colony isolates of Clostridioides difficile

ABSTRACT: Purpose: to determine the differentially expressed genes in the phase-variable rough and smooth colony isolates of C. difficile Methods: C. difficile R20291 was grown on BHIS agar to obtain distinct colonies. Individual rough and smooth colonies were chosen for propagation on BHIS-agar for 24 hours as described in Garrett, et al., PLoS Biology, 2019. Growth was collected from n = 2 biological replicates. RNA was purified using TriSure and chloroform, beadbeating, and isopropanol/ethanol precipitation. Quality was verified with Bioanalyzer Assay. Samples were submitted to Genewiz for depletion of rRNA using the TruSeq RiboZero Gold Kit, library preparation, and single-end sequencing on the Illumina HiSeq 2500 platform. RNA sequencing analysis was done using CLC Genomic Workbench v20. Reads were mapped to C. difficile R20291 genome using the software's default menalties for mismatch, deletion, and insertion differences from the reference genome. Transcript reads were normalized as RPKM. Results: 88 genes were differentially expressed between bacteria from rough versus smooth colonies, with equal to or greater than a 2-fold change and p < 0.05 with FDR correction.

ORGANISM(S): Clostridioides difficile R20291

PROVIDER: GSE158225 | GEO | 2020/09/27

REPOSITORIES: GEO

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