Understanding Host Specificity in Salmonella
Author Information
Author(s): Eswarappa Sandeepa M., Janice Jessin, Nagarajan Arvindhan G., Balasundaram Sudhagar V., Karnam Guruswamy, Dixit Narendra M., Chakravortty Dipshikha
Primary Institution: Indian Institute of Science, Bangalore, India
Hypothesis
The genes that confer host specificity in Salmonella enterica must have evolved differentially in different serovars in response to the differential influences of their specific hosts.
Conclusion
The study identifies six genes that play important roles in conferring host specificity to different serovars of Salmonella enterica.
Supporting Evidence
- The study identified six differentially evolved genes that contribute to host specificity.
- Genes encoding translocon proteins of SPI-1 and SPI-2 are differentially evolved.
- Human adapted serovars have evolved unique versions of these genes.
Takeaway
Some types of Salmonella bacteria are better at infecting certain animals than others, and this study found specific genes that help them do that.
Methodology
A molecular evolution and phylogenetics based approach was used to identify differentially evolved genes in various Salmonella serovars.
Limitations
The approach may not yield an exhaustive list of genes that underlie host specificity.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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