Zonal Phylogeny Software for Visualizing Protein Evolution
Author Information
Author(s): Sujay Chattopadhyay, Daniel E. Dykhuizen, Evgeni V. Sokurenko
Primary Institution: University of Washington
Hypothesis
Can Zonal Phylogeny Software (ZPS) effectively identify adaptive amino acid changes in proteins under short-term selection?
Conclusion
ZPS successfully visualizes adaptive evolution in proteins by differentiating between silent and non-silent mutations.
Supporting Evidence
- ZPS was tested with genes from Escherichia coli, showing significant differences in haplotype diversity.
- The External zone of fimH showed extensive recent evolution via amino acid changes.
- ZPS detected positive selection more effectively than traditional methods like codeml.
Takeaway
The Zonal Phylogeny Software helps scientists see how proteins change over time, especially when they adapt to new environments.
Methodology
ZPS analyzes DNA tree topology and haplotype alignment to separate protein variants into Primary and External zones based on synonymous and non-synonymous mutations.
Limitations
The software requires specific input formats and may not detect positive selection without prior knowledge of clade composition.
Statistical Information
P-Value
< 0.0001
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
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