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Description

Equine coat color is built on one of two possible base pigments: red or black. The extension gene controls the production of this base pigment [red or black]. All of the coat colors we see today, from white to black and sorrel- every single one of them begins with either a red or black base pigment. All horses will have the genetics for black or red pigment, regardless of their physical appearance. There are a number of dilutions patterns and modifiers which a horse can carry that affect the base pigment of a horse.

Black - Ee/aa OR EE/aa - Horses that are black pigmented horses that carry at least one copy of the Black Factor [E] allele. The black [E] allele of the extension gene is dominant and causes a black pigmented base both in the heterozygous [Ee] and homozygous [EE] state. A horse that is heterozygous for Red/Black Factor means that it carries one copy of the black allele [E] and one copy of the red allele [e]. A horse that is heterozygous for red/black factor can pass on either red or black pigment to its foals. A homozygous black [EE] horse means that it carries two copies of the black allele [EE]. A homozygous black horse will always produce black based foals regardless of its mate.

Guide by Hunter-Raider

Description

Equine coat color is built on one of two possible base pigments: red or black. The extension gene controls the production of this base pigment [red or black]. All of the coat colors we see today, from white to black and sorrel- every single one of them begins with either a red or black base pigment. All horses will have the genetics for black or red pigment, regardless of their physical appearance. There are a number of dilutions patterns and modifiers which a horse can carry that affect the base pigment of a horse.

Black - Ee/aa OR EE/aa - Horses that are black pigmented horses that carry at least one copy of the Black Factor [E] allele. The black [E] allele of the extension gene is dominant and causes a black pigmented base both in the heterozygous [Ee] and homozygous [EE] state. A horse that is heterozygous for Red/Black Factor means that it carries one copy of the black allele [E] and one copy of the red allele [e]. A horse that is heterozygous for red/black factor can pass on either red or black pigment to its foals. A homozygous black [EE] horse means that it carries two copies of the black allele [EE]. A homozygous black horse will always produce black based foals regardless of its mate.

Guide by Hunter-Raider