Coat Colour White Spotting – W19
Code: P391
Short description
The Dominant White coat colour pattern in horses can be caused by any in a wide array of related mutations.
General information
The Dominant White 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 Dominant White phenotype may be referred to as Splashed White, White Spotting, Tobiano or Sabino, among others.
The specific variant analysed in this test, known as Dominant White 19 (W19), is caused by an incomplete dominant mutation to the gene KIT. It has been observed in the Arabian horse.
Specifications
| Breeds | |
|---|---|
| Gene | KIT |
| Chromosome | 3 |
| Mutation | c.1322A>G |
| Organ | Integumentary System |
| Specimen | Hair, Blood EDTA, Blood Heparin, Semen, Tissue |
| Mode of Inheritance | Autosomal Incomplete Dominant |
Clinical features
The colouration caused by the W19 mutation consists of a largely white face, extended white legs and irregular belly spots.
Additional information
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.
Dominant White 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.
References
Pubmed ID: 23659293
Year published: 2013
Omia ID: 209
Omia variant ID:
Turnaround information
- 15 working days