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Many horses with the sooty trait have a darker mask on the bony parts of the face. A sooty palomino. Dark areas are more evenly spread out across the body than on the buckskin above. On chestnut-based horses sooty often has a relatively uniform appearance, unlike the top-down countershading seen on bays. This may indicate that it is caused by a ...
Sooty buckskin Connemara. The cream gene is found in many breeds. It is common in American breeds including the American Quarter Horse, [11] Morgan, [12] American Saddlebred, Tennessee Walking Horse, [13] and Missouri Fox Trotter. [14] It is also seen in the Miniature horse, [15] Akhal-Teke, [16] Icelandic horse, [17] Connemara pony, [1] and ...
Also, bay horses without any dun gene may have a faint dorsal stripe, which sometimes is darkened in a buckskin without a dun gene being present. Additional primitive striping beyond just a dorsal stripe is a sure sign of the dun gene. A buckskin horse can occur in any number of different breeds.
The best-known "color breed" registries that accept horses from many different breeds are for the following colors: Buckskin: a color which cannot breed "true" due to the cream gene which creates it being an incomplete dominant; Palomino: a color which cannot breed "true" due to the cream gene which creates it being an incomplete dominant
American Quarter Horse [2]: 435 Quarter Horse [2]: 497 American Saddlebred [2]: 435 American Shetland Pony [2]: 435 American Sorraia Mustang [2]: 435 of Iberian origin, in the Colonial Spanish horse group; no connection to the Sorraia has been demonstrated [2]: 435 American Spotted [2]: 435 American Spotted Paso [2]: 435
Buckskin is also created by the action of a single cream gene, but on a bay coat. Dun horses have a tan body with a darker mane and tail plus primitive markings such as a dorsal stripe down the spine and horizontal striping on the upper back of the forearm. The pearl gene in a homozygous state creates a somewhat apricot-colored coat with pale ...
Usually linked to chimerism, [10] but one heritable brindle pattern that affects coat texture and color in a family of American Quarter Horses has been named Brindle1 was announced in 2016. [ 11 ] Sooty is a proposed genetic modifier not yet mapped that causes dark hairs to be dispersed within the coat, darkening the whole coat with age.
In the case of horses that are born tobiano but turn gray, the skin will retain pigmented and unpigmented skin beneath its hair that may produce "ghost" markings. A homozygous tobiano that also carries a dilution gene , such as a pinto with a base color of palomino or buckskin , may not reliably produce spotted offspring if bred to another ...