What does RR dog mean? - briefly
"RR" in relation to dogs typically stands for "Registered Reindeer." This term is used to describe dogs that are registered with specific kennel clubs or breed registries, ensuring they meet certain standards and criteria for their breed.
What does RR dog mean? - in detail
The term "RR" in relation to dogs typically refers to the coat color and pattern of the animal. Specifically, "RR" denotes a red or chestnut-colored coat with a roan pattern. Roan is a distinctive coat pattern characterized by an even mixture of colored hairs and white hairs, which gives the dog's fur a speckled or mottled appearance. This pattern can vary in intensity, from a subtle hint of roaning to a more pronounced speckling that covers a significant portion of the dog's body.
In genetic terms, the "R" allele is responsible for producing red or chestnut pigment in the coat. When a dog carries two copies of this allele (RR), it results in a solid red or chestnut coat if no roaning gene is present. However, if the dog also has the roaning gene, the RR genotype will express as a red or chestnut roan pattern.
It's important to note that the presence of the "R" allele alone does not determine the final color or pattern of the coat. Other genetic factors and modifiers can influence the final appearance, such as the degree of dilution, intensity of the pigment, and the extent of roaning.
In breeds where the red or chestnut coat is desired, such as Irish Setters or English Foxhounds, breeders may select for the RR genotype to maintain and enhance these specific color traits within the lineage. However, it's crucial for prospective dog owners to understand that predicting a puppy's exact coat color based solely on genetic markers can be challenging due to the complexity of canine coat genetics.
In summary, "RR" in dogs refers to a red or chestnut-colored coat with a roan pattern, influenced by specific genetic alleles and modifiers. This understanding is valuable for breeders aiming to produce dogs with particular colorations and for owners seeking information about their dog's heritage and appearance.