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Dog coat colors are from patterns of: Eumelanin — black, chocolate brown, grey or taupe pigment; Phaeomelanin — tan pigment, including all shades of red, gold and cream pigment; and/or; Lack of melanin — white (no pigment). By 2020, more than eight genes in the canine genome have been verified to determine coat color. [3]
The coat of the domestic dog refers to the hair that covers its body. Dogs demonstrate a wide range of coat colors, patterns, textures, and lengths. As with other mammals, a dog's fur has many uses, including thermoregulation and protection from cuts or scratches; furthermore, a dog's coat plays an important role in the showing of purebred dogs.
When a dog has wild-type alleles at all three genes, it will have a yellow coat. When the dog has a loss-of-function allele at MC1R, it will have a yellow coat regardless of the genes it carries on the other two genes. Only a dominant black allele at CBD103 will produce a black coat color in dogs possessing wild-type alleles at MC1R and Agouti. [8]
Merle is a genetic pattern in a dog's coat and alleles of the PMEL gene. It results in different colors and patterns and can affect any coats. The allele creates mottled patches of color in a solid or piebald coat, blue or odd-colored eyes, and can affect skin pigment as well. Two types of colored patches generally appear in a merle coat: brown ...
The test also scanned for physical traits, like body size and coat color, but not personality traits like the others did. Where Basepaws shines, though, is its wealth of educational content.
All dog coat colors are modifications of black or yellow. [2] For example, the white in white miniature schnauzers is a cream color, not albinism (a genotype of e/e at MC1R .) Today, dogs exhibit a diverse array of fur coats, including dogs without fur, such as the Mexican Hairless Dog .