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Agouti (bay factor)

Summary

Agouti (ASIP) is the gene that controls black vs bay or brown coat colours. It can restrict black pigment to the points, creating bay or brown coat colours. Alternatively it can allow black pigment to be evenly distributed throughout the coat, creating the ever-popular black coat colour.

One of the most common reasons to test for black are to determine whether a horse is a faded black or a dark brown. It is also frequently used to see whether a horse is capable of producing black offspring.

Gene or region and technical reference

Gene: ASIP (causative). Reference: Rieder et al. (2001)

Reported alleles

A. Test developed using animal controls.

a. Test developed using animal cases.


horse

Like all black horses this muddy pony carries two copies of 'a' - the version of agouti the that allows black pigment to cover the entire body and not just the points.

Order tests

There is a one-off sample processing fee of $40 per animal plus the cost of your tests.

How many animals are you testing? Discount or society code:


Pedigree

$33 DNA profile ... more


Good looks


Coat colour

$9 Agouti (bay factor)

$9 Red/black ... more


Coat pattern

$9 Frame overo/lethal white syndrome (OLWS) ... more

$9 Grey/melanoma ... more

$9 Lp/Appaloosa/night blindness (CSNB) ... more

$9 PATN1 coat pattern modifier (PATN1) ... more

$9 Roan marker ... more

$9 Sabino 1 ... more

$9 Splashed white 1/deafness (SW1) ... more

$9 Splashed white 2/deafness (SW2) ... more

$9 Splashed white 3/deafness (SW3) ... more

$9 Tobiano ... more

$9 W13 dominant white (W13) ... more

$9 W20 white markings (W20) ... more

$9 W22 dominant white (W22) ... more

$9 W25 dominant white (W25) ... more

$9 W26 dominant white (W26) ... more

$9 W27 dominant white (W27) ... more


Colour dilution

$9 Champagne ... more

$9 Cream ... more

$9 Dun and d1 (nd1) ... more

$9 Pearl ... more

$9 Silver/eye abnormalities (MCOA) ... more


Good health


Paint horses

$9 Splashed white 2/deafness (SW2) ... more

$9 Splashed white 3/deafness (SW3) ... more


Pure- and part-bred Akhal-Tekes

$14 Naked foal syndrome (NFS) ... more


Good health


Multiple breeds

$14 Foal immunodeficiency syndrome (FIS) ... more

$14 Fragile foal syndrome (FFS) ... more

$9 Frame overo/lethal white syndrome (OLWS) ... more

$9 Grey/melanoma ... more

$9 Lp/Appaloosa/night blindness (CSNB) ... more

$14 Polysaccharide storage myopathy 1 (PSSM1) ... more

$9 Silver/eye abnormalities (MCOA) ... more

$9 Splashed white 1/deafness (SW1) ... more


Pure- and part-bred Arabians

$14 Cerebellar abiotrophy (CA) ... more

$14 Lavender foal syndrome (LFS) ... more

$14 Occipitoatlantoaxial malformation (OAAM) ... more

$14 Severe combined immune deficiency (SCID) ... more


Pure- and part-bred Connemaras

$14 Hoof wall separation disease (HWSD) ... more


Pure- and part-bred Friesians

$14 Friesian dwarfism ... more

$14 Hydrocephalus ... more


Pure- and part-bred Miniature horses

$14 D1 form of Miniature dwarfism (D1) ... more

$14 D2 form of Miniature dwarfism (D2) ... more

$14 D3 form of Miniature dwarfism (D3) ... more

$14 D4 form of Miniature dwarfism (D4) ... more

$140 Skeletal atavism (SA) ... more


Pure- and part-bred Quarter Horses and Paints

$14 Glycogen branching enzyme deficiency (GBED) ... more

$14 Hereditary equine regional dermal asthenia (HERDA) ... more

$14 Hyperkalaemic periodic paralysis (HYPP) ... more

$14 Malignant hyperthermia (MH) ... more


Pure- and part-bred Saddlebreds

$14 Junctional epidermolysis bullosa (JEB2) ... more


Good moves


Gaited horses

$9 Lateral gait marker ... more

Tests can be in the list more than once when the gene in question has more than one effect. It is OK to select the same test once or more than once, the price is the same.