We are taking a summer break from December 21 to January. You can still place orders now and while we are on break. If we we receive but don't finish testing your samples before Christmas they will be at the top of our list when we re-open in January. Samples that arrive during the break will be stored carefully for testing in January.
Thanks for all the testing you've sent us this year, and have a wonderful summer!
Splashed white 2/deafness (SW2)
Summary
The splashed white 2 (SW2) gene causes white markings. They can range from minor facial markings and socks to the white face, blue eyes, white legs and white belly of a typical boldly marked splash horse. It is rare but possible for SW2 horses to be deaf.
Chestnut splashed white horses generally have larger markings than bay/brown or black splashed white horses.
The SW2 version of splashed white is only found horses descended from a Quarter Horse mare called Katie Gun, born in 1987 in the USA.
It is possible (though very rare) for horses to carry two copies of SW2.
Gene or region and technical reference
Gene: PAX3 (causative). Reference: Hauswirth et al. (2012)
Reported alleles
n. Test developed using manufactured DNA, animal controls.
SW2. Test developed using manufactured DNA, animal cases.
Panels: groups of tests that are often ordered together
This test is not in any panels.
This black SW2 stallion is Bremerpark Shadow Gunner (Frankie). Many thanks to Five Mile Stud for sharing this picture of their handsome boy.
