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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. A change at the agouti locus is capable of turning bay to black, while a mutation at the extension locus can turn bay or ...
A “blue” dun, or grullo. A red dun. The dun gene is a dilution gene that affects both red and black pigments in the coat color of a horse. The dun gene lightens most of the body while leaving the mane, tail, legs, and primitive markings the shade of the undiluted base coat color. A dun horse always has a dark dorsal stripe down the middle ...
A dilution gene that produces what looks like point coloration, but from a completely different genetic mechanism is the dominant Dun gene, which dilutes the color of the body coat but not the points, including primitive markings—a dorsal stripe down the back and, less often, horizontal striping on the upper legs. On a bay base coat the dun ...
A red dun has a light reddish- tan body and dark red primitive markings and points Red duns have a chestnut base coat with the dun gene (one or two copies). Their body color is pale, dusty tan shade that resembles the light undercoat color of a body-clipped chestnut but with a bold, dark dorsal stripe in dark red, a red mane, tail and legs.
Red roan, roaning over chestnut, sometimes called "strawberry roan". Roan is a horse coat color pattern characterized by an even mixture of colored and white hairs on the body, while the head and "points"—lower legs, mane, and tail—are mostly solid-colored. Horses with roan coats have white hairs evenly intermingled throughout any other color.
The dun gene also produces light guard hairs in the mane and the tail. Grullo[1] (pronounced GREW-yo) [2][a] or grulla is a color of horses in the dun family, characterized by tan-gray or mouse-colored hairs on the body, often with shoulder and dorsal stripes and black barring on the lower legs. The genotype for grulla horses is a black base ...
DNA tests and patience are effective in determining which is the case. Some of the terms used to describe these combinations include: Dunalino, yellow dun or palomino dun: a chestnut-based coat with one cream allele and at least one dun allele. The points are reddish, but the body coat is a paler, flatter shade of gold and primitive markings ...
Primitive markings are a group of hair coat markings and qualities seen in several equine species, including horses, donkeys, and asses. In horses, they are associated with primitive breeds, [1] though not limited to such breeds. The markings are particularly associated with the dun coat color family. [2] All dun horses possess at least the ...