Evolution at increased error rate leads to the coexistence of multiple adaptive pathways in an RNA virus.

Abstract excerpt

BACKGROUND: When beneficial mutations present in different genomes spread simultaneously in an asexual population, their fixation can be delayed due to competition among them. This interference among mutations is mainly determined by the rate of beneficial mutations, which in turn depends on the population size, the total error rate, and the degree of adaptation of the population. RNA viruses, with their large...

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