Shock waves in virus fitness evolution

Details Shock waves in virus fitness evolution Shock waves in virus fitness evolution

2005-08-20

arxiv.org/abs/q-bio/0508026v1

Biology

Quantitative Biology

Populations and Evolution

9 pages 2 figures, submitted to Phys. Rev. Lett

Scientific paper

We consider a nonlinear partial differential equation of conservation type to describe the dynamics of vesicular stomatitis virus observed in aliquots of fixed particle number taken from an evolving clone at periodic intervals of time \cite{novella 95}. The changes in time behavior of fitness function noticed in experimental data are related to a crossover exhibited by the solutions to this equation in the transient regime for pulse-like initial conditions. As a consequence, the average replication rate of the population is predicted to reach a plateau as a power t^{-(1/2)}.

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