Color Question
 
 

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Color Question

This is a discussion on Color Question within the Horse Breeding forums, part of the Horse Breeds, Breeding, and Genetics category

     
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        04-15-2010, 08:53 PM
      #1
    Weanling
    Smile Color Question

    Today is Kalypso's birthday. He is 8 years old!


    My question is...how can a brown tob. Sire and a Black overo mare make a white foal? Blazing White Paint

    Here are 2 pics of kalypos's parents..

    This first one is the mom and the second one is the dad.
    Attached Images
    File Type: jpg Fantasy with baby.jpg (62.9 KB, 89 views)
    File Type: jpg will spot ya.jpg (32.0 KB, 87 views)
         
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        04-15-2010, 09:25 PM
      #2
    Trained
    It is just a max expression of the paint gene be it Tobiono or Overo. Just like some of Gunners foals are ALL white not a speck of color anywhere. If you DNA test them they come back Bay Sorrel black and so on yet they are all white.
         
        04-16-2010, 04:33 AM
      #3
    Started
    By "white foal" are you meaning the one in the photo with the mare, or one who is pretty much totally white?

    If the one with the mare, I would not consider that a white horse. Pinto with more white than color, yes. But not white.

    If you mean a "solid" white horse, could be Dominant White (but I would say not in this case, the parents don't look to be DW), could be maximum sabino (SB1SB1), could be a loud homozygous splash, or just a combo of white genes (sabino, splash, tobiano, frame).
         
        04-17-2010, 01:18 AM
      #4
    Green Broke
    He's not white, he just HAS lots of white. It's just how his expression of color came out. My Paint filly is the exact same - almost identical in fact with a black head and two black flank spots on a white body. Both her parents were dominately black with "white patches" as your boy's parents are.

    Heck, you could have two solid horses produce a horse that looked like your boy if they were only minimally expressing their own copy of the gene.
         
        04-17-2010, 07:27 AM
      #5
    Trained
    As others have mentioned, genetic-wise, the foal is colored, but most of the color is masked by the pattern, resulting in being mostly white. It's actually very common in toveros.
    Here's ours..left side all white on the body, right side with her chestnut color.



         
        04-17-2010, 07:30 AM
      #6
    Green Broke
    Well he isnt completly white. Genes can be carried through many generations and display the same coat pattern in today's foals.
         
        04-19-2010, 07:36 PM
      #7
    Weanling
    Thank you all for your comments.

    What does *homozygous* mean? That's what will spot ya is..

    Thanks.
         
        04-19-2010, 07:49 PM
      #8
    Lis
    Yearling
    Homozygous means the horse carries two copies of the genes so will always pass on one copy of the gene, I think. If I've got it wrong please correct me.
         

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