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Labrador Retrievers are a popular dog breed in many countries. There are three recognised colours, black, chocolate, and yellow, [1] that result from the interplay among genes that direct production and expression of two pigments, eumelanin (brown or black pigment) and pheomelanin (yellow to red pigment), in the fur and skin of the dog.
Dog coat color is governed by how genes are passed from dogs to their puppies and how those genes are expressed in each dog. Dogs have about 19,000 genes in their genome [2] but only a handful affect the physical variations in their coats. Most genes come in pairs, one being from the dog's mother and one being from its father.
Modern-day Labrador Retriever mixes, such as this one from Atlantic Canada, may show their genetic ancestry through the manifestation of the tuxedo coat pattern of the St. John's water dog. The St. John's water dog, also known as the St. John's dog or the lesser Newfoundland, is an extinct landrace of domestic dog from Newfoundland.
Equine coat color genetics discusses color genes in horses, including a brief description of dilution genes; Equine coat color describes various colors in horses; Cream gene, describes the process for horses by which the cremello, perlino, smoky cream double-dilute colors are created as well as the buckskin, palomino and smoky black single ...
The D locus dilutes black pigment to a blue-grey color usually called Blue. It is a recessive trait like Liver. When a dog has both Liver and Blue dilution, it will appear to be a light, warm-gray color known as Isabella. This is the color of Weimaraners. This color also has alternate names such as Liliac or Silver.
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A typical yellow Labrador retriever Endal, the world's most decorated dog, wearing his PDSA Gold Medal. This list of Labrador Retrievers covers notable individual dogs that belong to this breed. The Labrador retriever is the most popular breed of dogs (by registered ownership) in both the United States and the United Kingdom.
Nigger was a male black labrador retriever belonging to Wing Commander Guy Gibson of the Royal Air Force, and the mascot of No. 617 Squadron. Gibson owned the dog when he was previously a member of 106 Squadron. Nigger often accompanied Gibson on training flights [1] and was a great favourite of the members of both 106 and 617 Squadrons. He was ...