None of the mutations we observed were found in three gray wolves or the short-haired dogs, indicating that short-haired dogs carry the ancestral alleles (). Our finding of identical haplotypes surrounding the variants in all dogs displaying the same coat type suggests that a single mutation occurred for each trait and was transferred multiple times to different breeds through hybridization. Because most breeds likely originated within the past 200 years (), our results demonstrate how a remarkable diversity of phenotypes can quickly be generated from simple genetic underpinnings. Consequently, in domesticated species, the appearance of phenotypic complexity can be created through combinations of genes of major effect, providing a pathway for rapid evolution that is unparalleled in natural systems. We propose that in the wake of artificial selection, other complex phenotypes in the domestic dog will have similar tractable architectures that will provide a window through which we can view the evolution of mammalian form and function.
Dog 101 | Grooming | Hair Types | Long-Coat Dog Hair - Nylabone
Dog brushes come in various sizes and shapes can be made from , and . Although there are many types of dog brushes, they are not very popular amongst the professional dog groomers as most of them prefer using teasels. Dog brushes are perfect for breeds that have long and fragile hair, especially if the coat is getting properly taken care of. Common dog brushes are the bristle brush, wire pin brush, and the slicker brush.
Dog 101 | Grooming | Hair Types | Smooth-Coat Dog Hair - Nylabone
The bristle brush is one of the most widely used types of brushes mainly because it can be used for any type of coat. As a general rule, longer and widely spaced bristles are suitable for dogs with longer coats and shorter and tightly-packed ones are better to use on dogs with short hair. Typically, the bristle brush is used on dogs with long coats to finish the coat and to bring out the natural lustre and shine of the coat. It is commonly used in daily grooming as it removes surface and .
Learn About Dog Coat Types - Four Paws