Genetic variation in resistance, but not tolerance, to a protozoan parasite in the monarch butterfly.

@article{Lefevre2011GeneticVI,
  title={Genetic variation in resistance, but not tolerance, to a protozoan parasite in the monarch butterfly.},
  author={Thierry Lefevre and Amanda Williams and Jacobus C. de Roode},
  journal={Proceedings. Biological sciences},
  year={2011},
  volume={278 1706},
  pages={751-9}
}
Natural selection should strongly favour hosts that can protect themselves against parasites. Most studies on animals so far have focused on resistance, a series of mechanisms through which hosts prevent infection, reduce parasite growth or clear infection. However, animals may instead evolve tolerance, a defence mechanism by which hosts do not reduce parasite infection or growth, but instead alleviate the negative fitness consequences of such infection and growth. Here, we studied genetic… CONTINUE READING
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