Harlequin pattern · Harlekin-Faktor · H-Locus · PSMB7 mutation · Coat colour, harlequin
The harlequin coat pattern is a genetic trait that modifies the merle gene, affecting the pigment-producing cells in a dog's skin and hair. This autosomal dominant modifier causes some of the diluted grey areas of a merle coat to become white, leaving irregular, torn black patches. While viable puppies inherit only one copy of this gene, inheriting two copies is lethal during embryonic development.
Owners will notice a distinctive coat pattern consisting of a white base with irregular, torn black patches, which is fully visible from birth. Because this is a normal color variation in viable dogs, it does not cause any health issues or physical symptoms.
Since this is a harmless coat color variation and not a medical condition, no treatment is required. There are no associated veterinary costs, resulting in a lifetime treatment cost of 0 EUR.
More conditions affecting the Skin & coat.
Estimated range of typical treatment cost. Actual cost depends on severity, clinic and region.