The subject of discussion is a canine with a specific genetic makeup affecting coat color, derived from Shetland Sheepdogs. This coloration arises when the merle gene, which dilutes patches of pigment randomly, is present in a double dose (homozygous). The result is often a predominantly white or very pale coat with diluted blue/gray patches. This genetic combination is known to be associated with significant health risks.
Understanding the genetics and potential health ramifications surrounding this particular coat color is crucial for breeders, owners, and the overall welfare of the breed. Historically, the appeal of unusual coat colors sometimes outweighed concerns about genetic defects; however, responsible breeding practices now prioritize health and well-being. Identifying the potential problems early through genetic testing and informed decision-making minimizes the chances of producing affected individuals.
