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

Table 4 Genes associated with Campylobacter jejuni strains possessing higher potential competition capacities

Gene	Rank	Agg	Chm	Inv	Adh	Gene Function
Gene	p value	p value	p value	p value	p value	Gene Function
arsC	0.001	0.254	0.007	0.027	0.037	Arsenate reductase
C8J1456	0.005	0.824	0.002	0.033	0.175	Hypothetical protein
C8J1083	0.006	0.788	0.001	0.063	0.172	Hypothetical protein LOS locus
dmsA	0.010	0.930	0.002	0.085	0.143	Anaerobic dimethyl sulfoxide reductase
rloA	0.021	0.826	0.003	0.085	0.113	type 1 restriction system variant
HsdS	0.039	0.857	0.007	0.221	0.279	type 1 restriction system variant
CJE1719	0.039	0.213	0.069	0.025	0.008	Zinc-binding dehydrogenase family variant
C8J0988	0.043	0.514	0.026	0.127	0.013	Hypothetical protein

In the characterized C. jejuni strain collection, strains positive by microarray for these genes had higher mean rank values than the negative strains, as assessed by the Mann–Whitney test. An alpha value lower than 0.05 was considered for genes present in strains likely to possess different mean rank values or phenotypical properties, while an alpha value lower than 0.002 was considered for identifying genes that are of greater importance; Phenotypic properties refer to Agg = autoagglutination; Chm = chemotaxis; Inv = invasion; Adh = adhesion.

ISSN: 1471-2180