Evolution of an avian pigmentation gene correlates with a measure of sexual selection.

@article{Nadeau2007EvolutionOA,
  title={Evolution of an avian pigmentation gene correlates with a measure of sexual selection.},
  author={Nicola J Nadeau and Terry Burke and Nicholas I. Mundy},
  journal={Proceedings. Biological sciences},
  year={2007},
  volume={274 1620},
  pages={
          1807-13
        }
}
The extravagant plumage traits of male birds are a favourite example of sexual selection. However, to date the units that selection is acting upon, the genes themselves have been a 'black box'. Here, we report evidence of change driven by sexual selection at a pigmentation gene locus in the galliform birds. Across species, we find a correlation between the rate of amino acid change (dN/dS) at this locus (MC1R) and the degree of sexual dichromatism, which we use as a measure of the strength of… CONTINUE READING

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