Cryptic female preference for genetically unrelated males is mediated by ovarian fluid in the guppy.

@article{Gasparini2011CrypticFP,
  title={Cryptic female preference for genetically unrelated males is mediated by ovarian fluid in the guppy.},
  author={Clelia Gasparini and Andrea Pilastro},
  journal={Proceedings. Biological sciences},
  year={2011},
  volume={278 1717},
  pages={2495-501}
}
As inbreeding is costly, it has been suggested that polyandry may evolve as a means to reduce the negative fitness consequences of mating with genetically related males. While several studies provide support for this hypothesis, evidence of pure post-copulatory mechanisms capable of biasing paternity towards genetically unrelated males is still lacking; yet these are necessary to support inbreeding avoidance models of polyandry evolution. Here we showed, by artificially inseminating a group of… CONTINUE READING
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