Host plant genotype influences survival of hybrids between Eurosta solidaginis host races.

  title={Host plant genotype influences survival of hybrids between Eurosta solidaginis host races.},
  author={Timothy Paul Craig and Joanne K. Itami and James Craig},
  journal={Evolution; international journal of organic evolution},
  volume={61 11},
Extrinsic, host-associated environmental factors may influence postmating isolation between herbivorous insect populations and represent a fundamentally ecological cause of speciation. We investigated this issue in experiments on hybrids between the host races of Eurosta solidaginis, a fly that induces galls on the goldenrods Solidago altissima and S. gigantea. To do so, we measured the performance of parental host races and their hybrids on five genotypes of S. gigantea and nine genotypes of S… CONTINUE READING

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