Pearl coat colours

Why test for pearl?

Pearl is different from the other equine coat colour dilution genes. When a single copy of the pearl gene is present in a horse, the effect on their coat colour is minimal. Experienced pearl horse breeders describe foals with a single copy of the pearl gene as having coats that are slightly shiny or irridescent. There are some reports of ununusal coat colour changes, for example dark patches that appear and disappear with successive sheddings. Foal skin colour (if visible) may also be slightly lighter than non-pearl horses. As adults, horses with a single copy of the pearl gene are ususally indistinguishable from horses with no copies of this gene.

Horses with a chestnut base coat colour and two copies of the pearl gene are a uniform colour often described as golden or apricot, usually with a beautiful sheen. Horses with one copy of the pearl gene and one copy of the cream gene have the same range of appearance as horses with two copies of the cream gene (cremello, perlino or smoky black). Pearl and cream are alternative versions of same gene - SLC45A2.


Brightwater Mumma Mia is homozygous for the pearl coat colour dilution.
Thank-you Brightwater Gypsy Vanners, Kia Kai Park Paint Stud and Yeguada Verdadero for providing samples from your pearl horses.

Purchase equine DNA testing

Price per horse = sample processing ($40) + tests

How many horses do you want to test?

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Need different tests for each horse? You can customise your choices for each horse on next page.

Coat colour tests

Base coat colours

$9 Agouti (the bay factor) more
$9 Extension (red/black) more

Coat colour dilutions

$9 Cream more
$9 Dun and d1 more
$9 Silver more
$9 Champagne more
$9 Pearl more

Coat patterns

$9 Grey more
$9 Appaloosa or leopard (CSNB) more
$9 PATN1 more
$9 SW1 (Splashed White 1) more
$9 SW2 (Splashed White 2) more
$9 SW3 (Splashed White 3) more
$9 Frame overo (OLWS) more
$9 Tobiano more
$9 Sabino 1 more
$9 W13 dominant white (Miniatures) more
$9 W20 white markings more
$9 W22 dominant white (TB, Paint) more
$9 W25 dominant white (TB) more
$9 W26 dominant white (TB) more
$9 W27 dominant white (TB, Paint) more
$9 Roan marker more

Inherited disorders

Pure and part-bred Arabian

$14 Cerebellar abiotrophy (CA) more
$14 Severe combined immune deficiency (SCID) more
$14 Lavender foal syndrome (LFS) more

Fell Ponies, Dale Ponies and Gypsy horses

$14 Foal immunodeficiency syndrome (FIS) more

Pure and part-bred Friesian

$19 Friesian dwarfism more
$14 Hydrocephalus (Friesian and other breeds) more

Warmbloods and related breeds

$14 Fragile foal syndrome (FFS) more

Various breeds

$14 Polysaccharide storage myopathy type 1 (PSSM1) more

Quarter horses and related breeds

$14 Malignant hyperthermia (MH) more
$14 Hyperkalemic periodic paralysis (HYPP) more
$14 Hereditary equine regional dermal asthenia (HERDA) more
$14 Glycogen branching enzyme deficiency (GBED) more

Saddlebred horses and related breeds

$14 Junctional epidermolysis bullosa, Saddlebred form (JEB) more

Pure and part-bred Akhal Teke

$14 Naked foal syndrome (NFS) more

Pure and part-bred Connemara

$14 Hoof wall separation disease (HWSD) more

Parentage/DNA profile

$33 DNA profile (microsatellite) more

Remember: most breed societies ask members to test through their society.

Parentage verification: