Etalon DNA tests include over 60 equine coat color and pattern tests for all horse colors, patterns, white variations, and modifiers across all breeds. We are continually expanding our equine color testing offerings as new discoveries are made and published.
Dominant White 13 (W13) is found in Quarter Horse / American White Horse and may result in a completely white coat. This variant was originally described in a Quarter Horse / Peruvian Paso cross, and was assumed to have originated from the Quarter Horse side. However, we have observed W13 in the offspring of an American White Horse without known Quarter Horse ancestry.