Demographic fluctuations and selection during host-parasite co-evolution interactively increase genetic diversity.

Abstract excerpt

Host-parasite interactions can cause strong demographic fluctuations accompanied by selective sweeps of resistance/infectivity alleles. Both demographic bottlenecks and frequent sweeps are expected to reduce the amount of segregating genetic variation and therefore might constrain adaptation during co-evolution. Recent studies, however, suggest that the interaction of demographic and selective processes is a key...

Topics

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• Biological Evolution
• Genetic Variation
• Genetics, Population
• Host-Parasite Interactions
• Selection, Genetic