Shifts in growth, but not differentiation, foreshadow the formation of exaggerated forms under chicken domestication.

Abstract excerpt

Domestication provides an outstanding opportunity for biologists to explore the underpinnings of organismal diversification. In domesticated animals, selective breeding for exaggerated traits is expected to override genetic correlations that normally modulate phenotypic variation in nature. Whether this strong directional selection affects the sequence of tightly synchronized events by which organisms arise...

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