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Horse breeds that are generally solid-colored and do not allow most pinto coloring in their breed registries, but who may have representatives with sabino-style patterns (such as the Arabian, Thoroughbred, and Clydesdale) have at times classified sabino horses as roan or even gray.
Sabino horses that are homozygous for the sabino-1 (Sb-1) gene are often called "sabino-white", and are all- or nearly all-white. Not all sabino horses carry Sb-1. [24] Dominant white genetics are not thoroughly understood, but are characterized by all- or nearly all-white coats.
The most common usage refers to frame overo, but splashed white and sabino are also considered "overo". [2] [3] A horse with both tobiano and overo patterns is called tovero. Frame overo, splashed white, and sabino are three separate pinto patterns, genetically unrelated, that are grouped together under the name "overo".
Sabino-white horses are pink-skinned with all-white or nearly-white coats and dark eyes. They are homozygous for the dominant SB1 allele at the Sabino 1 locus, which has been mapped to KIT. [5] Sabino-white was one of the earliest dominant white alleles discovered, but was not originally recognized as such, hence the different name.
A pinto horse, with patches of white and of another color. A pinto horse has a coat color that consists of large patches of white and any other color. Pinto coloration is also called paint, [1] particolored, [2]: 171 or in nations that use British English, simply coloured. Pinto horses have been around since shortly after the domestication of ...
Some horse breeds exclude certain colors that are considered signs of a crossbred animal. For example, other than the Sabino pattern and some recently discovered dominant white alleles in horses with DNA-verified parentage, the Arabian horse registry excludes all spotted horses.
An extensively expressed rabicano Arabian horse Classic rabicano markings on flanks and a skunk tail. Rabicano, sometimes called white ticking, is a horse coat color characterized by limited roaning in a specific pattern: its most minimal form is expressed by white hairs at the top of a horse's tail, [1] often is expressed by additional interspersed white hairs seen first at the flank, then ...
This Thoroughbred stallion (W2/+) has one form of dominant white.His skin, hooves, and coat lack pigment cells, giving him a pink-skinned white coat. Dominant white (W) [1] [2] is a group of genetically related coat color alleles on the KIT gene of the horse, best known for producing an all-white coat, but also able to produce various forms of white spotting, as well as bold white markings.