Duplicated Paralogous Genes Subject to Positive Selection in the Genome of Trypanosoma brucei
2008
Positive Selection in the Genome of Trypanosoma brucei
Sample size: 109
publication
Evidence: high
Author Information
Author(s): Emes Richard D., Yang Ziheng
Primary Institution: Institute for Science and Technology in Medicine, Keele University
Hypothesis
We investigated adaptive evolution in duplicated genes of the human parasite Trypanosoma brucei.
Conclusion
The study identified 109 genes under positive selection, including those related to drug resistance and developmental progression.
Supporting Evidence
- 109 genes were identified within 23 clusters of paralogous gene expansions.
- The study is the first to investigate adaptive evolution in T. brucei at the codon level.
- Genes identified include surface antigens and transporters related to drug resistance.
Takeaway
Scientists found that some genes in a parasite called Trypanosoma brucei are changing quickly to help it survive, which could help in finding new ways to treat diseases it causes.
Methodology
The study used codon models to analyze the ratio of non-synonymous to synonymous substitutions in gene clusters.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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