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Horse Coat Color Panel

The horse coat color panel bundles together several diagnostic tests to evaluate coat color.

White Pattern Panel 1

The White Pattern Panel 1 offers diagnostic tests for a variety of white coat color patterns.

White Pattern Panel 2

The White Pattern Panel 2 bundles together all of the white coat color/pattern diagnostic tests that the VGL offers.

Agouti (Bay/Black)

The agouti gene controls the distribution of black pigment, and determines whether a horse will have a bay or black base coat color.

Cream

Cream is a dilution that causes the palomino, buckskin, smoky black, cremello, perlino, and smoky cream coat colors.

Dominant White Mutations – W5, W10, W13, W20, and W22

Dominant white is a variable white spotting pattern caused by many different mutations in the KIT gene. The VGL tests for the five most common mutations known as W5, W10, W13, W20, and W22. Homozygosity for W5, W10, W13 or W22 is thought to be non-viable.

Dun Dilution

Dun is a coat color dilution characterized by lightening of the coat, with the head, lower legs, mane, and tail undiluted. Oftentimes, dun is also characterized by "primitive markings" such as a dark dorsal stripe, barring of the legs, shoulder stripes, and "cobwebbing" on the forehead.

Gray

The gray gene causes progressive depigmentation of the hair, often resulting in a color that is almost completely white by 6-8 years of age. The individual gray test will determine the number of copies of the gray allele (zygosity). The coat color panel tests detect presence or absence of the gray allele.

Horse Embryo Pre-Implantation Genetic Diagnosis

Pre-implantation genetic diagnosis (PGD) is a procedure used to screen embryos recovered after uterine flush to determine sex and genetic traits through DNA testing prior to implantation in the uterus.

Multiple Congenital Ocular Anomalies (MCOA)

Multiple congenital ocular anomalies (MCOA) is an inherited eye disorder that is associated with the silver dilution and is characterized by ocular cysts, enlargement of the cornea, abnormally formed iris/retina, and additional abnormalities.

Mushroom

Mushroom is a dilute coat color found in Shetland Ponies that results in a distinctive “sepia” toned coat, often accompanied by a flaxen mane and tail.

Parentage/Genetic Marker Report

This DNA-based parentage test uses microsatellite marker analysis to compare the DNA profile of an offspring to the profiles of possible parents.

Red Factor

The extension gene, or red factor, determines whether a horse will have a chestnut base coat color or a black or bay base coat color.

Roan Zygosity Test

Roan is a white patterning coat color trait characterized by intermixed white and colored hairs in the body while the head, lower legs, mane, and tail remain colored.

Sabino 1

Sabino is a white spotting pattern that is characterized by white markings on legs often accompanied by white ticking or roaning of the midsection and a blaze on the face.

Silver

The silver dilution dilutes black/brown pigment to lighten the manes and tails of black and bay horses to a flaxen or silver gray. The silver dilution is also associated with an inherited ocular syndrome known as Multiple Congenital Ocular Anomalies (MCOA).

Skeletal Atavism

Skeletal atavism, an inherited bone development disorder found in Miniature Horses and Shetland Ponies, is characterized by severe angle anomalies and deformation of the front knee and hock. Affected horses typically display short legs, clubfootedness, and impaired movement.

Splashed White Mutations – SW1, SW2, SW3, SW4, SW5, SW6, SW7 and SW8

Splashed white is a variable white spotting pattern characterized by a broad blaze, extended white markings on the legs, variable white spotting on the belly, and often one or both blue eyes. Eight mutations in two different genes have been shown to cause the splashed white pattern.

Tobiano

Tobiano is a white spotting pattern characterized by white on the body that crosses the topline.