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The genetics of blue eyes in a QH?

This is a discussion on The genetics of blue eyes in a QH? within the Horse Colors and Genetics forums, part of the Horse Breeds, Breeding, and Genetics category

     
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        02-05-2011, 11:54 PM
      #21
    Yearling
    Quote:
    Originally Posted by wakiya    
    AGH! I hate grey it is a color killer
    I have no idea why his Tobiano markings vanished and his Appaloosa ones stayed. Happened over a couple months too, thought about buying him until I talked with the owner. $500 for a horse that's wild as a mustang and you can't catch, no papers either.

    They got him broke though, still a cute gelding.
         
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        02-06-2011, 02:55 AM
      #22
    Green Broke
    TG if he is an Appy it was probably his roaning spreading rather than him greying IYKWIM?
         
        02-06-2011, 09:19 AM
      #23
    Weanling
    Quote:
    Originally Posted by CloudsMystique    
    Sabino is a type of overo, just like frame and splash.

    What you're saying doesn't really make sense to me. Are you saying that a classic frame or splash or tobiano with white on their face or legs is never caused by sabino - but white on the face and legs of solid horses always is?

    I think a most facial and leg markings on solid horses are caused by sabino, but I think some are caused by frame and splash as well. Otherwise it would be as common to see frame and splash with no face white as it is to see tobiano with no face white. And I've never seen a splash or a frame with a solid face.
    Sorry, I had a feeling that wasn't going to make sense...
    I really love genetics, and I read somewhere that they think sabino causes the white facial & leg markings on otherwise solid horses. That's a very good point though, I hadn't thought of that.

    I'll have to try to find the website I was talking about, because I'm sure I'm doing a horrible job trying to explain what I mean.
         
        02-06-2011, 11:27 AM
      #24
    Trained
    There are a couple of Tobiano/Appy horses on this board.

    One is Golden Horse's Mr. G - Mr Appy Gilmore the various P.I.T.A. Loosa

    Another is Indyhorse's Claymore - Claymore the erm, lots of them Draft Cross

    Tobiano is not an accepted pattern for Appaloosas anymore then it is for quarter horses.

    On thing about Tobiano and LP... Appaloosa spots will only show on the colored areas. Anything whited out by the tobiano pattern stays white. LP can not and will not put spots on a white area caused by tobiano.
         
        02-06-2011, 03:02 PM
      #25
    Weanling
    This has all been very intresting. Now I want to add a question, because oveusly we have people who know genitics. What about the cemilos and champains? They have blue eyes.
         
        02-06-2011, 03:11 PM
      #26
    Yearling
    TwoGeldings - Frame Overo works by manipulating other pattern genes. If it doesn't have another pattern gene to work with, it will only be minimally expressed. That horse you posted with the solid legs & the loud Frame pattern is most certainly carrying Sabino as well (the loud white facial marking that is avoiding the eyes is a big giveaway).

    Raywonk - creme & champagne are both dilution genes. Horses carrying 2 copies of the creme gene (cremellos, perlinos, & smoky cremes) will have light coloured eyes. Horses carrying only 1 copy of the creme gene (palominos, buckskins, & smoky blacks) will have normal coloured eyes. Champagne horses only need 1 copy of the champagne gene in order to get the lightened eye-colour.
         
        02-06-2011, 03:11 PM
      #27
    Yearling
    Quote:
    Originally Posted by raywonk    
    This has all been very intresting. Now I want to add a question, because oveusly we have people who know genitics. What about the cemilos and champains? They have blue eyes.
    Blue eyes are because of the Cream dilute gene, they have no relation to the spotting genes which carry and cause blue eyes. In order for a solid horse to have cream-caused eyes, it would have to be double cream.

    Cream horses with blue eyes (some have hazel or even green eyes) have a much lighter shade of blue compared to a blue eye caused by Overo or Splash.
         
        02-06-2011, 03:17 PM
      #28
    Weanling
    Quote:
    Originally Posted by twogeldings    
    Blue eyes are because of the Cream dilute gene, they have no relation to the spotting genes which carry and cause blue eyes. In order for a solid horse to have cream-caused eyes, it would have to be double cream.

    Cream horses with blue eyes (some have hazel or even green eyes) have a much lighter shade of blue compared to a blue eye caused by Overo or Splash.
    Just thought I'd add this in.
    CPEA Cremellos and Perlinos Explained
    There's info there about the difference between Cream blue eyes and pinto-type blue eyes.
         
        02-06-2011, 04:35 PM
      #29
    Yearling
    I've seen frames w/ solid faces, actually with completely solid bodies, only sign of anything is a blue eye or two.
         
        02-06-2011, 06:53 PM
      #30
    Green Broke
    Yup, it is actually becoming more apparent as more people test that white patterns are often minimal and you don't see them. I have seen pics of a solid filly, completely solid, not a speck of white on her, who tested homozygous for tobiano.
         

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