Adaptive variation in senescence: reproductive lifespan in a wild salmon population.

@article{Hendry2004AdaptiveVI,
  title={Adaptive variation in senescence: reproductive lifespan in a wild salmon population.},
  author={Andrew P. Hendry and Yolanda E Morbey and Ole Kristian Berg and John K. Wenburg},
  journal={Proceedings. Biological sciences},
  year={2004},
  volume={271 1536},
  pages={259-66}
}
The antagonistic pleiotropy theory of senescence postulates genes or traits that have opposite effects on early-life and late-life performances. Because selection is generally weaker late in life, genes or traits that improve early-life performance but impair late-life performance should come to predominate. Variation in the strength of age-specific selection should then generate adaptive variation in senescence. We demonstrate this mechanism by comparing early and late breeders within a… CONTINUE READING

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