Plumage polymorphism in the black sparrowhawk (Accipiter melanoleucus) is strongly associated with expression level of agouti signalling protein
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Melanin-based plumage polymorphisms in birds are often associated with mutations in the melanogenesis genes, notably the melanocortin-1 receptor (MC1R), but may also arise through changes in the expression of these genes. Here we investigate the molecular basi... ...
