Reverse evolution: selection against costly resistance in disease-free microcosm populations of Paramecium caudatum.


Evolutionary costs of parasite resistance arise if genes conferring resistance reduce fitness in the absence of parasites. Thus, parasite-mediated selection may lead to increased resistance and a correlated decrease in fitness, whereas relaxed parasite-mediated selection may lead to reverse evolution of increased fitness and a correlated decrease in… (More)
DOI: 10.1111/j.1558-5646.2011.01388.x


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