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Before domestication, horses are thought to have had these coat colors. [1] Equine coat color genetics determine a horse's coat color. Many colors are possible, but all variations are produced by changes in only a few genes. Bay is the most common color of horse, [2] followed by black and chestnut.
Steel Grey/Iron Grey: A grey horse with intermingled black and white hairs. This color occurs in a horse born black, or in some cases, dark bay, and slowly lightens as the horse ages. Rose Grey: A grey horse with a reddish or pinkish tinge to its coat. This color occurs in a horse born bay or chestnut and slowly lightens as the horse ages.
The color of these lighter areas depends on the underlying color and ranges from off-white to light tan. [2] This type of coloration is most often found in breeds such as the Fjord horse, Exmoor Pony, and Haflinger. Wild equids like the Przewalski's horse, onager, African wild ass, kiang as well as the domestic donkey exhibit pangaré as a rule ...
Some coat colors partially distinguished by unique patterning include: Bay: A horse coat color that features black point coloration on a red base coat. All bay horses have a black mane, tail and legs (except where overlain by white markings), caused by the presence of the agouti gene. Most have black hairs along the edges of their ears and on ...
Cream coat colors are described by their relationship to the three "base" coat colors: chestnut, bay, and black. All horses obtain two copies of the SLC45A2 gene; one from the sire, and one from the dam. A horse may have the cream allele or the non-cream allele on each gene. Those with two non-cream alleles will not exhibit true cream traits.
Tobiano is a spotted color pattern commonly seen in pinto horses, produced by a dominant gene. The tobiano gene produces white-haired, pink-skinned patches on a base coat color. The coloration is almost always present from birth and does not change throughout the horse's lifetime, unless the horse also carries the gray gene.
Champagne is a dominant trait, based on a mutation in the SLC36A1 gene. [1] A horse with either one or two champagne genes will show the effects of the gene equally. However, if a horse is homozygous for a dominant gene, it will always pass the gene on to all of its offspring, while if the horse is heterozygous for the gene, the offspring will not always inherit the color.
Black silver horse exhibiting strongly diluted long hair with darker roots and flat gray, dappled body color. The silver or silver dapple (Z) gene is a dilution gene that affects the black base coat color and is associated with Multiple Congenital Ocular Abnormalities.