Constitutive activation of MC1R in the large-billed crow (Corvus macrorhynchos) and its potential role in black plumage
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Melanin-based plumage coloration in birds is largely regulated by the melanocortin 1 receptor (MC1R), a G protein-coupled receptor that promotes eumelanin synthesis via cAMP signaling. In domestic chickens, constitutively activating mutations such as the MC1R^... ...
