Genome Changes in Campylobacter jejuni Due to Bacteriophage Attack
Author Information
Author(s): Scott Andrew E Timms, Andrews R Connerton, Phillippa L Loc Carrillo, Catherine Adzfa Radzum, Khairul Connerton, Ian F Connerton
Primary Institution: University of Nottingham
Hypothesis
How does bacteriophage predation affect the genomic diversity of Campylobacter jejuni in chickens?
Conclusion
Campylobacter jejuni can undergo significant genomic rearrangements in response to bacteriophage predation, leading to temporary resistance but reduced colonization ability.
Supporting Evidence
- Bacteriophage-resistant strains showed genomic rearrangements up to 590 kb.
- Resistance to bacteriophage was associated with a significant fitness cost.
- Genomic instability was observed in C. jejuni populations under bacteriophage pressure.
Takeaway
When bacteria called Campylobacter jejuni are attacked by viruses, they can change their DNA to survive, but this makes it harder for them to live in chickens.
Methodology
The study involved isolating Campylobacter jejuni strains from chickens, exposing them to bacteriophage, and analyzing genomic changes through pulsed-field gel electrophoresis.
Potential Biases
Potential bias in strain selection and environmental conditions affecting results.
Limitations
The study primarily focused on in vivo conditions and may not fully represent in vitro behaviors.
Participant Demographics
Broiler chickens were used as the primary model organism.
Statistical Information
P-Value
0.003
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website