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About Sharon
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The colour of a Labradors coat is determined primarily by two genes. The first gene (the B locus) determines the density of the coat's pigment granules: dense granules result in a black coat, sparse ones give a chocolate coat. The second (E) locus determines whether the pigment is produced at all. A dog with the recessive e allele will produce little pigment and will be yellow regardless of its genotype at the B locus. Variations in numerous other genes control the subtler details of the coat's coloration, which in yellow labs varies from white to light gold to a fox red. Yellow labs can have black or pink noses; chocolate and black labs's noses match the coat colour. A very light colour sometimes called 'silver' is not officially recognized, but is sought by some owners and therefore unusually light coloured yellow and chocolate labs may be described this way by unscrupulous breeders. |
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