The diverse array of hues exhibited in the Collie’s fur is a defining characteristic of the breed. These range from the familiar sable and white, to tri-color (black, white, and tan), blue merle, and white. Each variation involves a complex interplay of genes determining pigment distribution and intensity. For example, a sable coat can range from a light golden hue to a deep mahogany, while blue merle presents a mottled pattern of blue-gray and black on a lighter background.
Breed standards often dictate acceptable coloration and markings for show dogs, influencing breeding practices and contributing to the overall aesthetic of the Collie. Historically, certain colorations may have been favored for practical reasons, such as camouflage while herding. Beyond the show ring, the striking visual appeal of these varied coat colors contributes significantly to the breed’s enduring popularity as a companion animal. Understanding the genetics behind coat color inheritance is crucial for responsible breeders striving to maintain breed health and desired traits.
