Evolution of Robustness to Noise and Mutation in Gene Expression Dynamics
Author Information
Author(s): Kunihiko Kaneko
Primary Institution: Department of Pure and Applied Sciences, University of Tokyo
Hypothesis
Is there a relationship between robustness against mutation and robustness against fluctuations in gene expression?
Conclusion
The study shows that genetic robustness evolves only when the noise strength in gene expression is larger than a certain threshold.
Supporting Evidence
- The study quantitatively derives the necessary condition for the evolution of robustness.
- Both genetic and developmental robustness are shown to be interrelated through the variance of phenotypic fluctuations.
- Results indicate that noise in gene expression plays a crucial role in shaping robustness.
Takeaway
This study looks at how living things can stay strong against changes and mistakes in their genes, especially when things get noisy around them.
Methodology
Simulations of a stochastic gene expression network undergoing mutation and selection were used to analyze the relationship between genetic and developmental robustness.
Limitations
The model used is simplified and may not capture all complexities of real biological systems.
Digital Object Identifier (DOI)
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