MERLE/BLOTCHED

The discovery of the merle allele is not attributed to any one individual or group, as it likely occurred through natural genetic variation and selective breeding practices over time. However, the Merle gene has been known and used by dog breeders for many years to produce dogs with unique and desirable coat patterns. The first records of merle dogs date back to the early 20th century, with the Australian Shepherd being one of the first breeds to be recognized for its merle coat pattern. Since then, the Merle gene has been identified in many other dog breeds and is now recognized as a common and distinct genetic trait in dogs. 

The temperament of merle dogs can vary depending on the breed and individual dog. However, in general, merle dogs are known to be highly intelligent, active, and trainable. Many merle breeds were initially developed for working purposes, such as herding or hunting, and as a result, they tend to be highly energetic and enjoy having a job to do.

Merle dogs can also be loyal and affectionate with their owners and are often good with children and other pets. However, as with all dogs, proper socialization and training are important to ensure that they develop good manners and behavior. Some merle dogs, especially those with strong herding instincts, may be prone to nipping or herding behavior if not properly trained and socialized.

It’s important to note that the temperament of a Merle dog should not be solely based on its coat pattern. Each dog, regardless of its coat color or pattern, is an individual with its own personality and needs. If you’re considering getting a merle dog, it’s important to research the breed and meet individual dogs to find one that suits your lifestyle and personality.

It’s important to note that breeding two merle dogs together can result in what is known as a “double merle” or “lethal white” dog. Double merle dogs have two copies of the merle gene, which can increase the risk of hearing and vision problems, including deafness and blindness. Responsible breeding practices, such as avoiding breeding two merle dogs together, can help to reduce the likelihood of producing double merle puppies and promote the health and well-being of merle dogs. 

As of April 28th, 2025, a Merle-colored dog has officially become an ABKC Champion for the first time!
Even more inspiring - this Champion has natural, uncropped ears. This marks a powerful shift in the bully world: Merle bullies and those with uncropped ears are now fully recognized and equal to all other bullies in competition.
And let’s be honest - Merles still have that one-of-a-kind charm that makes them stand out even more. 

The best feature of a merle Bully is that like Dalmatians, no two are alike, they are all unique.