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Dun Horses
What is Dun?
Dun is a "dilution" gene (like Creme, Champagne, and Silver
Dapples) which modifies but does not fundamentally change the base color.
Unlike Creme, it is a simple Dominant, meaning that the color effect is
the same whether the individual has one or two Dun genes. A dun coat is
the result of the dilution gene D, which dilutes the black, bay and red
pigment on the body, without diluting the points. Red and bay are diluted
to a pinky-red, yellowish red or yellow and black is diluted to grullo.
It also expresses itself with dark points, dorsal stripes, shoulder stripes,
and leg barring, which distinguish it from buckskins and palominos. The
dun gene cannot be masked by any color and only one D gene is required.
Dun Markings:
Any individual horse may have most, but not necessarily all of these traits:
- diluted body color, somewhat like that of the
Creme gene (this one is a MUST-HAVE)
- dorsal stripe (this one is a MUST-HAVE)
- zebra stripes on knees and hocks
- chest, rib and arm bands,
- ear lining and tips: top one-third of the ear on its back side darker
than body color
- fawn color inside of ears
- mane and tail lined with lighter color (2-color mane & tail)
- cob-webbing on face
- face darker than body color
- Dappling is not associated with the Dun gene
The Genetic formula for dun is: (bay) E, A, CC,
D, gg, ww, toto
When breeding for the Dun Horse...Here are the BEST wayss:
| Best Chances |
Good Chance |
Little Chance |
No Chance |
| Buckskin x Dun |
Grullo x Red |
Grullo x Buckskin
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Grullo x Grullo |
| Buckskin x Grullo |
Grullo x Cream |
Grullo x Black |
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| Buckskin x Red Dun |
Grullo x Palomino |
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| Dun x Bay |
Grullo x Red Dun |
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| Dun x Black |
Red Dun x Black |
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| Dun x Red |
Red Dun x Cream |
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| Dun x Cream |
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| Dun x Dun |
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| Dun x Grullo |
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| Dun x Palomino |
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| Dun x Red Dun |
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| Dun x Smoky |
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| Grullo x Bay |
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| Grullo x Red Dun |
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| Red Dun x Bay |
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Here's how Dun affects the various Base Colors:
BASE COLOR WITH DUN
RED --------------------------------> Red Dun
BAY --------------------------------> Bay Dun, aka Classic Dun or "Zebra
Dun"
BLACK ------------------------------> "Grulla" Black Dun
aka "Grullo" ("Grulla" if female)
Other modifiers, such as "Sooty" may also be present to create
a unique soft "mouse grey" "hot chocolate," or "olive"
color. The darkest grullos are called "Lobo" duns, and the lightest
are called "Silver Grullos."
Buckskin ---------------------------> "Dunskin"
Palomino ---------------------------> "Dunalino" Also called
"Linebacked Palominos"
Yes, Pintos can be Dun, too!
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