Effects of Selection in Bovine Immune Genes
Author Information
Author(s): Abigail R Freeman, David J Lynn, Caitriona Murray, Daniel G Bradley
Primary Institution: Smurfit Institute of Genetics, Trinity College, Dublin, Ireland
Hypothesis
Did six bovine immune genes experience recent adaptive selection at the population level?
Conclusion
The study provides evidence of recent adaptive history in bovine immune genes, indicating a link between intra- and inter-specific signals of selection.
Supporting Evidence
- Significant coding polymorphism was observed within each of the cell-surface receptors.
- CD2 shows two divergent haplotypes defined by a series of six derived nonsynonymous substitutions.
- Three signaling molecules have negligible nonsynonymous variation but show outlying test statistics.
Takeaway
Scientists looked at genes in cows that help them fight diseases and found signs that these genes have changed recently to help them survive better.
Methodology
The researchers re-sequenced exonic, intron, and intergenic regions of six immune genes in cattle from Africa, Asia, and Europe.
Limitations
The study may not account for all demographic histories and selective pressures across different populations.
Participant Demographics
39 individual cattle from 16 different breeds across Africa, Asia, and Europe.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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