Dog Coat Color - French Bulldog Panel

Agouti (A Locus)

The Agouti Signaling Protein (ASIP) gene interacts with the MC1R gene to control red (phaeomelanin) and black (eumelanin) pigment switching in dogs, affecting amount, type, and distribution of the two pigments.

Cocoa

A brown coat color resulting in a slightly darker coat than the brown color caused by other variants. This color is seen in French Bulldogs and was previously referred to as “non-testable chocolate”.

Dilute (D Locus/Blue)

Several gene variants are known to produce dilute coloration in dogs. Colors are lightened (diluted) to paler shades as a result of the variants' effects on pigmentation.

Dominant Black (K Locus)

The Dominant Black gene (K Locus) affects pigment switching between eumelanin (black) and phaeomelanin (red or yellow) by interacting with the Agouti and MC1R genes.

MC1R including Mask, Grizzle, and Red/Cream (E Locus)

The melanocortin 1 receptor (MC1R) gene controls production of the pigments eumelanin (black) and phaeomelanin (red/yellow). Six known variants of this gene are responsible for producing markings and coat colors including melanistic mask, grizzle/domino, black, and shades of red/yellow.

Piebald/White Spotting (S Locus)

White spotting patterns that occur in many dog breeds do not have a uniform genetic basis, and the genetics are complex. In piebald/parti/random white spotting, the extent of white pattern expression varies, and markings are often asymmetrical.

Species

Dog

Type of Panel

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