The
leopard complex is a group of genetically-related
coat patterns in
horses. These patterns range from progressive increases in interspersed white hair similar to
graying or
roan to distinctive,
Dalmatian-like
leopard spots on a white coat. Secondary characteristics associated with the leopard complex include a white
sclera around the eye, striped
hooves and
mottled skin. The leopard complex genes are also linked to abnormalities in the eyes and vision. These patterns are most closely identified with the
Appaloosa horse breed, though its presence in breeds from Asia to western Europe has indicated that it is due to a very ancient
mutation.