horse logo

Sorry, we aren't taking any more orders this week.

We are flat out! We want to keep doing a good job for our clients so we've taken the step of capping the number of orders we accept. If we don't do this, the turnaround time for testing will keep getting longer and longer.

Orders for each new week open on Monday, Sydney time. We are working to find ways to test more samples every day, and we will increase the weekly cap as soon as we can.

In the mean time, have a look through our individual tests and panels (panels are groups of tests) to help decide what you want to test for.

W22 dominant white (W22)


W22 is a version of the KIT gene that produces a partial to completely white coat pattern. W22 is thought to have originated in an USA-bred Thoroughbred mare called Not Quite White, born in 1989.

Not Quite White had at least two white foals. The most well-known is Airdrie Apache (a stallion). She also produced a filly called Spotted Lady. Most W22 horses are descended from Airdrie Apache.

No horses have been identified yet carrying two copies of W22.

Gene or region and technical reference

Gene: KIT (causative). Reference: Dürig et al. (2017)

Reported alleles

n. Test developed using manufactured DNA, animal controls.

W22. Test developed using manufactured DNA, animal cases.

Panels: groups of tests that are often ordered together

This test is not in any panels.


Hagia Sophia is the first representative of the W22 dominant white line in Australia. He is currently standing at Barinya Stud.

Order tests

There is a one-off sample processing fee of $40 per animal plus the cost of your tests.

How many animals are you testing? Discount or society code:


$33 A DNA profile ... more


Colour panels

$40 Dilutions panel ... more

$120 Full colour panel ... more

$70 Patterns panel ... more

Panels by breed

$115 Arabian health & colour ... more

$50 Arabian health panel ... more

$66 Fjord horse panel ... more

$40 Friesian health & colour ... more

$120 Gypsy health & colour ... more

$50 Miniature ACAN panel ... more

$250 Miniature health & colour ... more

$160 QH health & colour ... more

$90 QH health panel ... more

Good moves

Gaited horses

$9 Lateral gait marker ... more

Good looks

Coat colour

$9 Agouti (bay factor) (agouti) ... more

$9 Red/black ... more

Coat pattern

$9 Frame overo/lethal white syndrome (OLWS) ... more

$9 Grey/melanoma ... more

$9 Lp/Appaloosa/night blindness (CSNB) ... more

$9 PATN1 coat pattern modifier (PATN1) ... more

$9 Roan marker ... more

$9 Sabino 1 ... more

$9 Splashed white 1/deafness (SW1) ... more

$9 Splashed white 2/deafness (SW2) ... more

$9 Splashed white 3/deafness (SW3) ... more

$9 Splashed white 5/deafness (SW5) ... more

$9 Tobiano ... more

$9 W13 dominant white (W13) ... more

$9 W20 white markings (W20) ... more

$9 W22 dominant white (W22)

$9 W25 dominant white (W25) ... more

$9 W26 dominant white (W26) ... more

$9 W27 dominant white (W27) ... more

Good health

Paint horses

$9 Splashed white 3/deafness (SW3) ... more

Good looks

Colour dilution

$9 Champagne ... more

$9 Cream ... more

$9 Dun and d1 (nd1) (dun/d1) ... more

$9 Pearl ... more

$9 Taffy/silver/eye abnormalities (MCOA/silver) ... more

Good health

Multiple breeds

$14 Foal immunodeficiency syndrome (FIS) ... more

$14 Fragile foal syndrome (FFS) ... more

$9 Frame overo/lethal white syndrome (OLWS) ... more

$9 Grey/melanoma ... more

$9 Lp/Appaloosa/night blindness (CSNB) ... more

$14 Polysaccharide storage myopathy 1 (PSSM1) ... more

$9 Splashed white 1/deafness (SW1) ... more

$9 Taffy/silver/eye abnormalities (MCOA/silver) ... more

Pure- and part-bred Akhal-Tekes

$14 Naked foal syndrome (NFS) ... more

Pure- and part-bred Arabians

$14 Cerebellar abiotrophy (CA) ... more

$14 Lavender foal syndrome (LFS) ... more

$14 Occipitoatlantoaxial malformation (OAAM) ... more

$14 Severe combined immune deficiency (SCID) ... more

Pure- and part-bred Connemaras

$14 Hoof wall separation disease (HWSD) ... more

Pure- and part-bred Friesians

$14 Friesian dwarfism ... more

$14 Hydrocephalus ... more

Pure- and part-bred Miniature horses

$14 D1 form of Miniature dwarfism (D1) ... more

$14 D2 form of Miniature dwarfism (D2) ... more

$14 D3* form of Miniature dwarfism (D3*) ... more

$14 D4 form of Miniature dwarfism (D4) ... more

$140 Skeletal atavism (SA) ... more

Pure- and part-bred Paint horses

$9 Splashed white 5/deafness (SW5) ... more

Pure- and part-bred Quarter Horses and Paints

$14 Glycogen branching enzyme deficiency (GBED) ... more

$14 Hereditary equine regional dermal asthenia (HERDA) ... more

$14 Hyperkalaemic periodic paralysis (HYPP) ... more

$14 Immune mediated myositis (IMM) ... more

$14 Malignant hyperthermia (MH) ... more

$9 Splashed white 2/deafness (SW2) ... more

Pure- and part-bred Saddlebreds

$14 Junctional epidermolysis bullosa (JEB2) ... more

Tests can be in the list more than once when the gene in question has more than one effect. It is OK to select the same test once or more than once, the price is the same.