Adaptive Evolution of Snake Metabolic Proteins
Author Information
Author(s): Castoe Todd A., Jiang Zhi J., Gu Wanjun, Wang Zhengyuan O., Pollock David D.
Primary Institution: University of Colorado School of Medicine
Hypothesis
Did snakes undergo significant adaptive changes in their mitochondrial proteins that affect their metabolism?
Conclusion
Snake mitochondrial proteins have experienced extensive adaptive changes that likely influence their unique metabolic and physiological adaptations.
Supporting Evidence
- Snake mitochondrial proteins showed unprecedented levels of positive selection.
- Adaptive changes in mitochondrial proteins coincided with major shifts in ecological niche.
- Unique amino acid replacements were concentrated in functionally critical regions of proteins.
Takeaway
Snakes have special proteins that help them breathe and use energy in a unique way, which helps them survive and thrive.
Methodology
Molecular evolutionary analyses were conducted on snake mitochondrial proteins to assess adaptive changes.
Limitations
The accuracy of dN/dS ratios may be questioned due to potential saturation of synonymous changes.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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