How are roaning and sabino linked? Or are they? - Page 2
 
 

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How are roaning and sabino linked? Or are they?

This is a discussion on How are roaning and sabino linked? Or are they? within the Horse Colors and Genetics forums, part of the Horse Breeds, Breeding, and Genetics category

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        02-19-2014, 06:42 PM
      #11
    Trained
    Rabicano and Roan are completely different. I have several sabinos that are just sabinos, and I have a few sabinos/rabicanos.
    Connected? Hard to say. Why would one show up without the other then? I've seen a lot of rabicanos without any sabino markings, and vice versa. I think it's luck of the genetic draw. I don't think they go hand in hand.
         
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        02-19-2014, 07:05 PM
      #12
    Trained
    Quote:
    Originally Posted by ponyboy    
    Roan has nothing at all do with sabino. Just because they share some of the same effects does not mean they are the same gene.
    They have isolated both Roan and Sabino 1, and they are both mutations of the same gene.
         
        02-19-2014, 07:08 PM
      #13
    Trained
    Quote:
    Originally Posted by trailhorserider    

    I actually see quite a few photos of paints with similar markings. And I always assumed they were frame. But frame alone (so they say) doesn't cause face and leg white. So obviously sabino is happening too. So if you get a roaned out "frame," I wonder if that is what sabino does to frame (makes the edges of the spots lacy), OR is it sabino alone causing this pattern?
    Re the orange. Frame does cause face white. Spice, a member's horse on here, is a great example. Her only white is her face white, and she is frame positive. The only clue was in her face white - frame likes white to spread horizontally, including when it is on the face, especially above the eyes. I suggested her owner test her, and it turned out she was positive.

         
        02-19-2014, 07:09 PM
      #14
    Trained
    As another thought, I have a feeling that when they isolate rabicano, it too will be a KIT locus mutation. It too has the similar feel to it that the other KITs share.
    dbarabians likes this.
         
        02-19-2014, 09:37 PM
      #15
    Started
    Quote:
    Originally Posted by Chiilaa    
    As another thought, I have a feeling that when they isolate rabicano, it too will be a KIT locus mutation. It too has the similar feel to it that the other KITs share.
    I agree with this as well. The KIT locus is pretty neat the different genes on it can cause little white markings to an almost completely white horse like my sorrel DW paint Pepper. White patterns are so fun and unpredictable.
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        02-19-2014, 10:23 PM
      #16
    Green Broke
    ^How interesting! :O
         
        02-23-2014, 06:07 PM
      #17
    Yearling
    Quote:
    Originally Posted by Chiilaa    
    They have isolated both Roan and Sabino 1, and they are both mutations of the same gene.
    So they are no longer the same gene. They don't have the same effects either. I don't see how anyone could confuse the two.
         
        02-23-2014, 07:25 PM
      #18
    Trained
    Quote:
    Originally Posted by ponyboy    
    So they are no longer the same gene. They don't have the same effects either. I don't see how anyone could confuse the two.
    They are not the same gene, but they ARE related. Just like bay and brown are related. They DO have similar expression, while not the same expression, but close enough to see similarities.

    In no way am I saying they do the same thing, so please don't imply that.
         
        02-27-2014, 09:45 AM
      #19
    Foal
    I was very interested to read this thread, and im not a genetic wiz! So I learned something!

    Thanks yall!
    Chiilaa likes this.
         

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