What genetic factor is responsible for the Weimaraner coat's unique color dilution?
A dilution gene acting upon black pigment.
The striking coloration of the Weimaraner coat, which varies across shades of gray, is a direct consequence of a specific genetic mechanism occurring at a particular locus on the genome. This mechanism involves a dilution gene. This gene does not introduce a new color but rather acts upon the dog's foundational pigment—which is black. By diluting this black pigment, the resulting expression is the characteristic silvery-gray that defines the breed standard. Breeders must be acutely aware that while selecting intensely for this visually appealing trait, improper line breeding management could inadvertently concentrate other undesirable genetic factors lurking within the gene pool alongside the necessary dilution mechanism.
