Modularity enhances the rate of evolution in a rugged fitness landscape
Author
Park, Jeong-Man; Chen, Man; Wang, Dong; Deem, Michael W.
Date
2015Abstract
Biological systems are modular, and this modularity affects the evolution of biological systems over time and in different environments. We here develop a theory for the dynamics of evolution in a rugged, modular fitness landscape. We show analytically how horizontal gene transfer couples to the modularity in the system and leads to more rapid rates of evolution at short times. The model, in general, analytically demonstrates a selective pressure for the prevalence of modularity in biology. We use this model to show how the evolution of the influenza virus is affected by the modularity of the proteins that are recognized by the human immune system. Approximately 25% of the observed rate of fitness increase of the virus could be ascribed to a modular viral landscape.
Citation
Published Version
Type
Journal article
Publisher
Citable link to this page
https://hdl.handle.net/1911/90565Rights
This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by IOP Publishing Ltd.Metadata
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