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The White Spotting coat colour pattern in horses can be caused by any in a wide array of related mutations.
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Especificaciones
| Breeds | |
|---|---|
| Gene | |
| Chromosome | 6 |
| Mutation | c.209G>A |
| Mode of Inheritance | Autosómico Incompleto Dominante |
| Organ | |
| Specimen | Pelo, sangre EDTA, sangre Heparina, Semen, Tejido |
| Also known as | SW |
Información específica de la prueba
The White Spotting coat colour pattern in horses can be caused by any in a wide array of related mutations. The resulting pattern can vary anywhere between white markings on the face and legs, up to a completely white coat. Depending on both breed and pattern, variants of the White Spotting phenotype may be referred to as Splashed White, Dominant White, Tobiano or Sabino, among others.
The specific variant analysed in this test, known as Splashed White 2 (SW2), is caused by an incomplete dominant mutation to the paired box 3 (PAX3) gene. It is found in the Lipizzaner horse, Noriker and Quarter Horse breeds and is recently renamed into Auditory-pigmentary syndrome.
Características clínicas
SW2 horses are often characterised by a large broad blaze, white markings on the legs, variable white spotting on the belly and blue eyes.
Información adicional
Coat colour is an intricate trait that involves a combination of multiple different genes. Testing for a range of different loci will give the most complete prediction of a horse's coat colour genetics.
White Spotting can be caused by a wide range of mutations. A white-patterned horse that tests as unaffected for a particular mutation will almost certainly be affected by a different one.
Referencias
Pubmed ID: 22511888
Year published: 2012
Omia ID: 1688
Omia variant ID: 791