Molecular evolution of bovine Toll-like receptor 2
Author Information
Author(s): Jann Oliver, Werling Dirk, Chang Jung-Su, Haig David, Glass Elizabeth J
Primary Institution: The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh
Hypothesis
Polymorphism in Toll-like receptor (TLR) genes might be associated with disease resistance or susceptibility traits in livestock.
Conclusion
Polymorphisms at amino acid positions 227, 305, and 326 in bovine TLR2 are functionally important and should be considered as candidate SNPs for immune-related traits in cattle.
Supporting Evidence
- Twenty newly-discovered non-synonymous polymorphic sites were identified in cattle.
- Several positively-selected sites were detected in or around ligand-binding domains.
- His326Gln is crucial for ligand binding in human TLR2.
Takeaway
Scientists studied a gene in cows that helps them fight off germs and found some changes in the gene that might help cows be healthier.
Methodology
DNA from 90 individuals belonging to 7 Bos taurus and 3 Bos indicus breeds was collected and sequenced to analyze TLR2 polymorphisms.
Potential Biases
Potential bias due to the selection of specific breeds and environmental factors affecting immune response.
Limitations
The study primarily focused on a limited number of cattle breeds and may not represent all genetic variations in TLR2 across different populations.
Participant Demographics
90 individuals from 7 Bos taurus and 3 Bos indicus breeds.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website