Pearl Gene?

Discussion in 'Horse Breeding' started by Snaffle Bit, Jul 31, 2009.

  1. Snaffle Bit

    Snaffle Bit Senior Member+

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    Can someone tell me more about the Pearl gene? I was browsing Spanish horses and came across the mention of Pearl?
     
  2. JBandRio

    JBandRio Senior Member

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    When it combines with a single dilute, it makes the horse look like a double dilute.

    In its hetero form, it has no effect on a normal color.

    In it's h.omo form on chestnut (only), it can make the horse look "funny". It was originally called the Apricot gene (and the Barlink gene), because it turns chestnuts a funny apricot color.

    http://www.chboa.com/apricot.html
    http://www.newdilutions.com/pearl/index.htm
    http://www.painthorsejournal.com/archives/pdfs/PreciousPearls.pdf
    http://homozygous-horses.com/pearl.html
     
  3. Snaffle Bit

    Snaffle Bit Senior Member+

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    Very interesting! It disproves the old "rule" that chestnut x chestnut = chestnut!

    Thank you very much for the links.
     
  4. JBandRio

    JBandRio Senior Member

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    LOL, yes, if you go by phenotype alone ;)

    This is a different break in the rule though than, say, chestnut x chestnut = bay :D
     
  5. Snaffle Bit

    Snaffle Bit Senior Member+

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    Very true, but still very interesting!:D
     
  6. RiddleMeThis

    RiddleMeThis Senior Member

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    Its not only on chestnuts.

    This one is homzoygous pearl on black
    [​IMG]


    This is also most likely homozygous pearl on black or bay
    [​IMG]

    This is a smokey black pearl
    [​IMG]
     
  7. Snaffle Bit

    Snaffle Bit Senior Member+

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    Oh, wow, they're very, very striking. They're almost metallic.
     
  8. JBandRio

    JBandRio Senior Member

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    So the UCD site it outdated? Just asking :)
     
  9. Haas Horse Farm

    Haas Horse Farm Senior Member+

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  10. RiddleMeThis

    RiddleMeThis Senior Member

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    They don't say that it only effects chestnuts. They just describe what it looks like on chestnuts. There are not many homozygous pearls that are black based instead of red based even now, and I bet there was even less at the time that was written. There was most likely nothing to compare the red bases to so they just described those.

    Not to mention those black based horses I posted are in Europe.

    So in answer to your question, yes and no.
     

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