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The Border Terrier is a British breed of small, rough-coated terrier. It originates from the area of the Anglo-Scottish border, and shares ancestry with the Dandie Dinmont Terrier and the Bedlington Terrier from the same area. [ 2 ]
A different gene, unaffected by coat color, can make the eyes blue. However, this gene is rare. It occurs occasionally in Border Collies and similar breeds, but is mostly seen in Siberian Huskies, which may have one or both eyes blue, regardless of their predominant coat color. [68]
A dog's coat is composed of two layers: a top coat of stiff guard hairs that help repel water and shield from dirt, and an undercoat of soft down hairs, to serve as insulation. [1] Dogs with both under coat and top coat are said to have a double coat. Dogs with a single coat have a coat composed solely of guard hairs, with little or no downy ...
Blue merle Border Collie puppy Red merle Australian Shepherd. Merle is a genetic pattern in a dog's coat and alleles of the PMEL gene. It results in different colors and patterns and can affect any coats. The allele creates mottled patches of color in a solid or piebald coat, blue or odd-colored eyes, and can affect skin pigment as well. Two ...
The melanistic mask is caused by the M264V allele (known as E M) at the melanocortin 1 receptor (MC1R) locus, also known as the extension locus. [1] [2] It is completely dominant to the other alleles of the gene, and causes the melanocyte-stimulating hormone to bind to and activate melanocortin 1 receptors (located on melanocytes) in the mask's area, causing those melanocytes to produce ...
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The early history of the Smooth Collie, like that of many dog breeds, is a matter of speculation. Even the origin of the breed's name is unclear, variously claimed to describe the early shepherd dog's dark colour ("coaly") or derived from the name of a breed of sheep with black faces once commonly kept in Scotland ("Colley") or derived from an Anglo-Saxon word meaning "useful."
The Cairn Terrier is a terrier breed originating in the Scottish Highlands and recognised as one of Scotland's earliest working dogs.. The name "Cairn Terrier" was a compromise suggestion when the breed was brought to official shows in the United Kingdom in 1909, initially under the name "Short-haired Skye terrier".