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Rose comb: an example of operational over-dominance in the domestic fowl*
Published online by Cambridge University Press: 14 April 2009
Extract
The pleiotropic effect of the rose-comb gene (R) on fertility when combined with artificial selection against the single-comb type (r) results in an interesting example of operational over-dominance. An evaluation of the equilibrium frequency of the rose-comb gene based on this over-dominance concept provides a plausible explanation for the relatively high frequency of single-comb birds appearing in the Wyandotte breed of fowls.
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- Copyright © Cambridge University Press 1964
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