Differences in Disease Genes Based on Mutation Type
Author Information
Author(s): Furney Simon J, Albà M, López-Bigas Núria
Primary Institution: Centre for Genomic Regulation, Universitat Pompeu Fabra
Hypothesis
The evolutionary history of autosomal disease genes differs based on whether they are affected by dominant or recessive mutations.
Conclusion
Dominant disease genes are more conserved than recessive disease genes, suggesting that recessive mutations accumulate more slightly deleterious mutations due to being hidden from selection.
Supporting Evidence
- Dominant disease genes show higher conservation scores than recessive disease genes.
- Recessive mutations are often hidden from selection, allowing them to accumulate more mutations.
- The study found significant differences in evolutionary rates between dominant and recessive disease genes.
Takeaway
Some genes cause diseases when one copy is broken (dominant), while others need both copies to be broken (recessive). The first type of gene is usually more stable over time.
Methodology
The study analyzed protein and coding sequence conservation, functional annotation, and disease severity of disease genes based on their mode of inheritance.
Limitations
The study does not include X-linked disease genes and focuses solely on autosomal genes.
Statistical Information
P-Value
7.59 × 10-6
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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