Modeling viral genome fitness evolution associated with serial bottleneck events: evidence of stationary states of fitness.

Abstract excerpt

Evolution of fitness values upon replication of viral populations is strongly influenced by the size of the virus population that participates in the infections. While large population passages often result in fitness gains, repeated plaque-to-plaque transfers result in average fitness losses. Here we develop a numerical model that describes fitness evolution of viral clones subjected to serial bottleneck events....

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