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W25 dominant white (W25)
W25 is a version of the KIT gene that produces a partial to completely white coat pattern. W25 is thought to have originated in an Australian Thoroughbred mare called Laughyoumay, born in 2001.
Laughyoumay has had at least two white colts, bred by Winning Colours Farm. The oldest, Luna Park, carries the frame overo gene as well as W25. He has blue eyes as well as a completely white coat. The younger colt, Great Caesar Ghost, is a medicine hat - white, with colour only on and around his ears. We hope to see many more colourful W25 horses in the future.
No horses have been identified yet carrying two copies of W25.
Gene or region and technical reference
Gene: KIT (causative). Reference: Hoban et al. (2018)
n. Test developed using manufactured DNA, animal controls.
W25. Test developed using manufactured DNA, animal cases.
Panels: groups of tests that are often ordered together
This test is not in any panels.
Laughyoumay, a Thoroughbred mare born in 2001. Thanks to Winning Colours Farm for providing samples for this research.