€57,48 €47,50 excl. VAT
The pearl dilution gene (SLC45A2) dilutes the colour of the coat, mane, tail and skin.
11 working days
American Quarter Horse, Lustiano, Purebred Spanish Horse (PRE), American Paint Horse
Hair, Blood EDTA, Blood Heparin, Semen, Tissue
|Mode of Inheritance|
The pearl dilution gene (SLC45A2) dilutes the colour of the coat, mane, tail and skin. It is also referred to as the ‘Barlink Factor’ and often resembles the champagne dilution. Pearl is a rare dilution and only red pigment is diluted by the pearl dilution gene. The allele Prl, causing the Pearl dilution is recessive. This means that only horses with two copies of the Prl allele have a lightened coat, mane and tail, in addition to bright eye colours.
A chestnut basic colour is diluted to a pale, uniform apricot colour of body, mane and tail, in addition to bright eye colours. Skin coloration is also pale. Pearl dilution interacts with Cream dilution to produce pseudo-double dilute horses including pale skin and blue/green eyes. If a horse has one copy of the Prl allele and Cream dilution (Cr allele) is also present, this results in a pseudo-double dilute, also called pseudo-cremellos or pseudo-smoky cream.
This test is specific for one mutation in the SLC45A2 gene that is associated with the pearl dilution. Mutations in other dilution genes that may produce coat colours that resemble pearl will not be detected by this test.
Pubmed ID: 30968968
Omia ID: 1344