Coat Colour B-Locus – Australian Shepherd

Coat colour in dogs is controlled by a wide range of different genes working together. These genes are often referred to as ‘loci’. The Brown, or B-Locus, corresponds to the gene ‘tyrosinase-related protein 1’ (TYRP1), which controls the production of black pigment. Several different recessive mutations can result in a lightening of the dog’s coat from black to brown. The mutation analysed in this particular test occurs specifically in the Australian Shepherd.