Wild Mountain Farms
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    • Dave
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    • About the Rocky Mountain Horse >
      • History of the Rocky Mountain Horse Breed
      • Other Mountain Horse Breeds
      • What They Look Like
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      • What They Do
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      • Genetic Testing
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        • Timing Details
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    • Basic Genetics >
      • Basic Genetics Expanded
    • Color Genetics >
      • Horse Color Genetics >
        • Basic Color Genes
        • Special Color Genes >
          • Special Color Details
        • The Colors >
          • Red
          • Bay
          • Black
          • White
          • Gray
          • Chocolate
          • Cream Gene Colors >
            • Palomino
            • Buckskin
            • Black Buckskin
            • Cremello
            • Perlino
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          • Champagne
          • Paint
          • Roan
          • Appaloosa Horses
    • Raising a Foal Right
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    • Belle
    • Sugar
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      • backpacking gear List >
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    • Kinickinick
    • Larkspur
    • Lupine
    • Mouseeared Chickweed
    • Oregon Grape
    • Oxeye Daisy
    • Pasque Flower
    • Prarie Smoke
    • Salsify
    • Shooting Star
    • Thistle
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    • Plant ID Books I Like
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      • Feeding Dwarf Goats >
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return to basic genetics

Horse Color Genetics:
​The Special Color Genes Overview


​The Special Color Genes
​
Most of the horse colors other than red, bay or black are the result of one of the three Base Colors being acted on (altered) by a Special Color Gene. There are three things to understand about Special Color Gene:
  1. They are usually simple genes which work largely as ON-OFF switches. Each horse receives one of two versions of each of these genes: the one that tells them to turn this special color ON, or the one that tells them to leave this special color OFF. If they receive the OFF version, then this gene is not activated at all and has no effect on the horse. If they receive the ON version, then the horse's base color will be altered in whatever way that particular Special Color Gene alters base colors. 
  2. The ON version of the Special Color Gene is always the dominant one. If a horse receives even one ON version, the special color will be activated in that horse. 
  3. Most Special Color Gene can be thought of as dominant to the base colors. They replace the base color with something else. (Actually, they alter the base color in a specific way, but the effect is the same as if they replaced it.) If your horse has even one ON version of a Special Color Gene, it will override the base color. 

(Most horses receive the OFF version of all or most of the Special Color Genes. Any horse that is red, bay or black can be assumed to have received two OFF versions for all of its Special Color Gene.)

On the next page, we will look at specific special color genes.
continue to special color details


return to general education page

Location

raising rocky mountain horses
​for every rider

Because when the mountains are wild,
the horse shouldn't be!

Wild Mountain Farms
PO Box 209
25111 Mill Creek Rd.
Frenchtown, MT  59834
406-239-4748
info@WildMountainFarms.com
Christie and Dave Goodman

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  • WildMountainFarms
  • About Us
    • Ishmael by Daniel Quinn
    • Christie's Writing
    • Dave
  • Our Stallion
    • 2021 Breeding Season
    • 2020 Breeding Season
    • The Breeding Process
    • Schedule Your Breeding
    • Breeding Contracts and Fees
    • Color and Our Stallion
  • Education
    • About the Rocky Mountain Horse >
      • History of the Rocky Mountain Horse Breed
      • Other Mountain Horse Breeds
      • What They Look Like
      • Temperament of the Rocky Mountain Horse
      • What They Do
      • Where to Find a Rocky Mountain Horse
      • Cost of a Rocky Mountain Horse
      • Genetic Testing
    • Breeding Education >
      • Deciding to Breed
      • Choosing a stallion
      • Getting Started
      • Breeding Costs
      • Breeding Basics >
        • Timing Details
      • AI vs Live Cover
      • Pre-Breeding Preparation
      • Breeding Contract
      • Live Foal Guarantee
    • Basic Genetics >
      • Basic Genetics Expanded
    • Color Genetics >
      • Horse Color Genetics >
        • Basic Color Genes
        • Special Color Genes >
          • Special Color Details
        • The Colors >
          • Red
          • Bay
          • Black
          • White
          • Gray
          • Chocolate
          • Cream Gene Colors >
            • Palomino
            • Buckskin
            • Black Buckskin
            • Cremello
            • Perlino
            • Smokey Cream
          • Champagne
          • Paint
          • Roan
          • Appaloosa Horses
    • Raising a Foal Right
    • Transporting Horses Long Distance >
      • Transport Paperwork
      • Transport Equiptment (Big)
      • Transport Equiptment (Small)
      • Feed and Water For Transporting
      • Driving Practices for Transporting
      • Transport Tips
  • Horses For Sale
    • Stormy-SOLD!
    • Smudge-SOLD!
    • Copper-SOLD! >
      • Copper Stories
  • Our Horses
    • Lady
    • Cowgirl
    • Belle
    • Sugar
  • Our Animal Partners
  • Our Human Partners
  • Contact Us
  • Western Montana Riding Trails
  • The Pacific Crest Trail
    • Who We Are >
      • Why and What
      • Christie
      • Kaladin
      • The Horses
      • Riding Companions
      • Local Resources
      • Home Team
    • Strategy and Goals
    • PCT Basics
    • PCT Water
    • PCT Safety
    • PCT Timing
    • PCT Maps
    • PCT Permits
    • PCT Resources
    • PCT Contacts
    • PCT Gear >
      • backpacking gear List >
        • Shelter >
          • Tents
        • Sleeping Bag
        • Sleeping Pad
        • Camp Chair
        • Water Purifier
        • Water Reservoir
        • Kitchen Gear
      • horse packing gear
      • dog packing gear
      • safety gear
      • photography gear
      • packing organization
  • AirBnB Cabin
  • Wildflowers of Western Montana
    • Arnica
    • Arrowleaf Balsamroot
    • Bear Grass
    • Biscutroot
    • Bitterroot
    • Buttercup, Sagebrush
    • Buttercup, Common
    • Bluebell
    • Cinquefoil
    • Deptford Pink
    • Fleabane
    • Glacier Lily
    • Goldenrod
    • Harebell
    • Indian Paintbrush
    • Kinickinick
    • Larkspur
    • Lupine
    • Mouseeared Chickweed
    • Oregon Grape
    • Oxeye Daisy
    • Pasque Flower
    • Prarie Smoke
    • Salsify
    • Shooting Star
    • Thistle
    • Wild Hyacinth
    • Wild Onion
    • Wild Rose
    • Wild Strawberry
    • Wild Sunflower
    • White Campion
    • Woodland Star
    • Yarrow
    • Plant ID Books I Like
  • Goats
    • Goat Enclosures
    • Feeding Goats >
      • Feeding Dwarf Goats >
        • Dwarf Goat Hay
  • Sheep
  • Horsepacking
    • How Many Horses
  • Sheep