Most domestic horses have a variant of the dun gene which saturates the coat with color so that they are bay black or chestnut instead of dun grullo or red dun. There are many different coat color possibilities but all colors are produced by the action of only a few genes.
Try pressing the genetic buttons to the left of the horse below and see how they all interact.
Horse coloring genetics. Modifications of these pigments produce the whole spectrum of horse colors that we observe in modern horses. Philip sponenberg the man who literally wrote the book on equine color genetics brindle seems to require sooty black countershading for its expression and reorganizes sootiness into vertical stripes instead of a more uniform sprinkling of hairs. Genetics of horse coloring.
Horse color genetics is concerned with two basic coat color pigments. The effect of pigments. I m writing a children s story in which two siblings are trying to guess the color a new foal will be.
Even though the horse is gray it still has all the genetics of the color it was before going gray. In the story the stallion is black with a white patch on the flank streaking down the leg. Written by lucy robinson.
While most horses remain the same color throughout life a few over the course of several years will develop a different coat color from that with which they were born. A specialized vocabulary has evolved to describe them. The gray gene causes the progressive loss of pigment throughout the horses coat and will affect any color horse.
Pearl champagne and silver dapple also lighten the coat and sometimes the skin and eyes as well. Capital letters indicate dominant variants and lower case letters indicate. A guide to horse color genetics coat colors patterns.
Phaeomelanin red and eumelanin black. The basic outline of equine coat color genetics has largely been resolved and dna tests to de. Have my ideas but need some assistance in determining if it s possible.
Horses exhibit a diverse array of coat colors and distinctive markings. The genetics of brindle are unknown but according to dr. Okay so white is a hue instead of a color but when it comes to horses it s actually the lack of pigment the natural coloring of tissue that makes the hair white.
A mutation called cream is responsible for palomino buckskin and cremello horses. Most white markings are present at birth and the underlying skin color of a healthy horse does not change. Black e is dominant to red e.
Chestnut is one of the most common horse coat colors seen in almost every breed. Equine coat color genetics determine a horse s coat color. The mc1r gene also known as extension determines whether a horse can produce black pigment.
Chestnut consists of a red or brownish coat with a mane and tail the same or lighter in color than the coat. Red pigment is produced by the recessive alleles of the extension locus designated e. Therefore a horse with the genotype e e one black and one red allele has a black base color but can produce either black or red base offspring.
Gene information displayed here.