Clock polymorphism in Pacific salmon: evidence for variable selection along a latitudinal gradient.

@article{Omalley2010ClockPI,
  title={Clock polymorphism in Pacific salmon: evidence for variable selection along a latitudinal gradient.},
  author={K O'malley and Michael J Ford and Jeffrey J. Hard},
  journal={Proceedings. Biological sciences},
  year={2010},
  volume={277 1701},
  pages={3703-14}
}
Seasonal timing of life-history events is often under strong natural selection. The Clock gene is a central component of an endogenous circadian clock that senses changes in photoperiod (day length) and mediates seasonal behaviours. Among Pacific salmonids (Oncorhynchus spp.), seasonal timing of migration and breeding is influenced by photoperiod. To expand a study of 42 North American Chinook salmon (Oncorhynchus tshawytscha) populations, we tested whether duplicated Clock genes contribute to… CONTINUE READING
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