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Table 3 Identification of the dominant Campylobacter jejuni strains in the in vivo chicken colonization competition assays by PCR detection of relevant genes

From: Extensive characterization of Campylobacter jejuni chicken isolates to uncover genes involved in the ability to compete for gut colonization

Group and assay Sample Sample type ars C vir B11 cj0144 tet O rlo B cje0256
Group1- assay1 Bird1 bird feces + - + + + -
Group1- assay1 Bird2 bird feces + - + + + -
Group1- assay1 Bird3 bird feces + - + + + -
Group1- assay2 Bird1 bird feces + - + + + -
Group1- assay2 Bird2 bird feces + - + + + -
Group1- assay2 Bird3 bird feces + - + + + -
Group1- assay1 + 2 G2008b inoculated strain DNA + - + + + -
Group1- assay1 + 2 B2008c inoculated strain DNA - + - - - -
Group2- assay1 Bird1 bird feces + - + - + -
Group2- assay1 Bird2 bird feces + - + - + -
Group2- assay1 Bird3 bird feces + - + - + -
Group2- assay2 Bird1 bird feces + - + - + -
Group2- assay2 Bird2 bird feces + - + - + -
Group2- assay2 Bird3 bird feces + - + - + -
Group2- assay1 + 2 A2008a inoculated strain DNA + - + - + -
Group2- assay1 + 2 B2008b inoculated strain DNA - + - - - -
Group3- assay1 Bird1 bird feces - - + + - -
Group3- assay1 Bird2 bird feces - - + + - -
Group3- assay1 Bird3 bird feces - - + + - -
Group3- assay2 Bird1 bird feces + (low) - + + - -
Group3- assay2 Bird2 bird feces + (low) - + + - -
Group3- assay2 Bird3 bird feces - - + + - -
Group3- assay1 + 2 F2008d inoculated strain DNA - - + + - -
Group3- assay1 + 2 D2008a inoculated strain DNA - - - + - +
  1. Detection of genes specific to the inoculated strains in the in vivo competition assays seven days post-inoculation; (+) gene detected in the sample; (−) gene not detected in the sample; (low) weak signal observed.