The presence of a dilute gene in Labrador Retrievers can result in a coat color variation described as “silver.” This, in conjunction with specific genetic combinations, can also lead to the expression of blue irises. The resulting phenotype presents a unique combination of traits not traditionally associated with the breed’s accepted standards.
Variations in canine physical attributes are often subject to discussion regarding breed purity and health implications. Understanding the genetic mechanisms behind these traits is crucial for responsible breeding practices. Documenting the historical context of color variations within established breeds provides context for discussions on breed standards and ethical considerations.