Evolution of Symbiotic Bacteria in the Distal Human Intestine
Author Information
Author(s): Xu Jian, Mahowald Michael A, Ley Ruth E, Lozupone Catherine A, Hamady Micah, Martens Eric C, Henrissat Bernard, Coutinho Pedro M, Minx Patrick, Latreille Philippe, Cordum Holland, Van Brunt Andrew, Kim Kyung, Fulton Robert S, Fulton Lucinda A, Clifton Sandra W, Wilson Richard K, Knight Robin D, Gordon Jeffrey I
Primary Institution: Center for Genome Sciences, Washington University School of Medicine, St. Louis, Missouri, United States of America
Hypothesis
How does the intestinal environment affect microbial genome evolution?
Conclusion
The study shows that lateral gene transfer and other genomic adaptations are crucial for the evolution of gut Bacteroidetes in response to their environment.
Supporting Evidence
- The adult human intestine contains trillions of bacteria, which are crucial for digestion.
- Genomic adaptations allow gut bacteria to sense their environment and utilize nutrients effectively.
- Lateral gene transfer is a significant mechanism for the evolution of gut bacteria.
Takeaway
The bacteria in our gut change and adapt over time, helping us digest food better and stay healthy.
Methodology
The genomes of two gut bacteria were sequenced and compared to analyze their adaptations.
Limitations
The study primarily focuses on two specific bacteria and may not represent the entire gut microbiome.
Statistical Information
P-Value
p<0.0003
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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