Non-dun1 or nd1 causes primitive markings, but lacks the dilution of the coat that dun produces.
Colors
Chestnut non-dun1
Chestnut non-dun1 (or nd1) is a horse color caused by nd1 on a chestnut base. Primitive markings are present.
Hannelore Roodhooft
Black non-dun1
Black non-dun1 (or nd1) is a horse color caused by nd1 on a black base. Primitive markings are present.
Hannelore Roodhooft
Bay non-dun1
Chestnut non-dun1 (or nd1) is a horse color caused by nd1 on a chestnut base. Primitive markings are present.
Hannelore Roodhooft
Gene
TBX3 gene
The TBX3 gene is responsible for the dilution dun and non-dun1.
Hannelore Roodhooft
Presence in horses
Non-dun1 is widespread and can be found in most horse breeds.
Learn while playing! Discover how genes shape colors and patterns in our realistic horse breeding game, Horse Reality
