Traits
Genetic Info
Genotype: Rn_
Locus: Roan is a KIT gene mutation, along with Tobiano, Sabino, and Dominant White. A horse may carry only two KIT gene mutations.
Locus: Roan is a KIT gene mutation, along with Tobiano, Sabino, and Dominant White. A horse may carry only two KIT gene mutations.
(Images from left to right: Minimal Roan on Chestnut, Light Roan with Corn Marks on Chestnut, Intense Roan on Chestnut.)
Roan is a lightening of the coat visible across the horse's barrel, shoulders, chest, neck, and hindquarters.
It may cause a light, grayish appearance compared to the base color or turn the coat nearly white.
"Corn Marks" may form allowing the base coat color showing through.
Roan should fade gradually into the base color at its edges.
It may cause a light, grayish appearance compared to the base color or turn the coat nearly white.
"Corn Marks" may form allowing the base coat color showing through.
Roan should fade gradually into the base color at its edges.
Notes:
- Definitions:
- Corn Marks: Small marks throughout the roan where the base coat may show through. These marks should be no bigger than a horse's iris and should not appear symetrical or intentional. They should never mimic false leopard in appearance.
- Interactions:
- Blanched: When Blanched and Roan are both present, Roan may be hidden.
- Filigree and Kintsugi: Filigree and Kintsugi do not interact with Roan.
- Chestnut: When Roan is on a Chestnut base coat, it is often colloquially known as "Red Roan."
- Black: When Roan is on a Black base coat, it is often colloquially known as "Blue Roan."
Roan's effects on:
- Coat Color: Roan is a white marking.
- Mane & Tail Color: Roan does not affect the mane and tail.
- Skin Color: Roan does not affect skin color.
- Eye Color: Roan does not affect eye color.
- Hoof color: Roan does not affect hoof color.
Roan Range
Minimum Range:
Visible lightening of base coat on top of the hindquarters.
Minimum Maximum out of range
Maximum Range:
Near-white lightening of the barrel and neck, with the base coat color visible above the horse's jaw and below the knees/hocks.
Varnish Roan is a white marking that covers the body in irregular, speckled white.
Unlike Roan, Varnish can appear anywhere on the horse and is irregular in density, often with patches of base coat showing through on the neck, cheeks, shoulders, and hindquarters.
Spots of base color can show through Varnish Roan in a pattern that resembles Blanket or Leopard.
Genotype: LpLp
Locus: Varnish Roan is part of the Leopard Complex group of patterns, along with Snowflake, Snowcap, Blanket, Leopard and Fewspot.
- Coat: Varnish Roan is a white marking.
- Mane and Tail: Not affected, mostly. White roots are acceptable.
- Skin: May cause pink speckled skin.
- Eyes: Not affected.
- Hooves: May cause tan-striped hooves.
Range:
- Minimum: A speckled white patch that covers the hindquarters and barrel, with irregular lightening and texture that differentiates it from Snowcap or Blanket.
- Maximum: A white "varnish" over the body that is patchy/speckled at the tops of the legs, the neck, the cheeks, and the top of the muzzle. Speckles or spots of base coat may show through.
2 results found.