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Varying degrees of the tobiano phenotype in the Hucul horse. The horse in (A) displays cryptic tobiano markings that can be confused with a solid horse with white markings despite carrying a TO variant. The horse in (B) shows minimal tobiano markings. The horse in (C) displays classic tobiano. All horses possess at least one TO variant. All horses display their base coat color as well as white markings. Figure adapted from [24]. Photographs by M. Pasternak.
