Responses to selection on phenoloxidase activity in yellow dung flies.

  title={Responses to selection on phenoloxidase activity in yellow dung flies.},
  author={Gioia A Schwarzenbach and Paul I. Ward},
  journal={Evolution; international journal of organic evolution},
  volume={60 8},
Maintaining an immune system is costly. Resource allocation to immunity should therefore trade off against other fitness components. Numerous studies have found phenotypic trade-offs after immune challenge, but few have investigated genetic correlations between immune components and other traits. Furthermore, empirical evidence for the costs of maintaining an innate immune system in the absence of challenges is rare. We examined responses to artificial selection on phenoloxidase (PO) activity… CONTINUE READING
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