Color Genetics of my Mare

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Color Genetics of my Mare

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        02-16-2013, 03:36 PM
    Color Genetics of my Mare

    Okay, so my mare was a broodmare for most of her life until I got her. It was really cool because the farm she came from had her dam & granddam there, so she was very much their baby.

    Anyways, she has had 5 foals in her life. I was hoping to breed her again at some point when I am more financially stable. But I want to find a very nice stud for her. Apparently she's been bred to 2 other studs, one buckskin QH & a black overo paint. The last one kind of scares me because she herself is an overo. Does that mean that she isn't an olws carrier? Or should I still get her tested?

    According to the APHA, the 2 foals that came from the overo stud came out as black paints (one stallion, one gelding).

    & then the 3 she had from the buckskin were grullo, buckskin & a bay.
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        02-16-2013, 10:07 PM
    Do you have a picture of your mare? "Overo" is actually an outdated blanket term that basically covered any pattern that isn't tobiano. The term covers sabino, splash, and frame, which are 3 separate and unique genes. Frame is the one that is lethal in homozygous form. Sabino and splash are fine, so she mayyy not have it, but a picture could easily let us know if she's frame positive.
    Chiilaa likes this.
        02-17-2013, 02:11 AM
    I believe she is considered frame. & I think she might have some sabino in her because when she sheds out, she gets white "freckles" behind her elbows & on her flanks. But I'm not sure if that really qualifies....

    She's rather fuzzy in the pictures, but they are the most recent I have of her.
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    HorseLovinLady likes this.
        02-17-2013, 02:19 AM
    It would be hard to make a guess with no pictures and no description of your horse besides the fact that she has pinto coloring. I'm guessing she's the black (edit: possibly dark brown from those photos...or maybe just faded black...see below: tired eyes) in your photo album? If that's so, then the "buckskin" stallion she was bred to was probably actually a dun or a dunskin. Can't get a dun baby (grullo) out of non-dun parents.

    As for pinto pattern. You can never say 100% without a DNA test (assuming there's a definitive test for any particular gene you may be looking for). I won't say absolutely frame, as I'm tired and my eyes are blurry, but she could very well be. Definitely test for frame before you (potentially) breed her. If she comes back positive for frame (Oo) obviously steer clear of frame stallions.
        02-17-2013, 07:30 AM
    Definitely frame, possibly splash. I'm not seeing sabino.
        02-17-2013, 11:15 AM
    Your mare is Frame so is you do breed her again make sure you breed to a confirmed tested NO FRAME stud. You wouldn't want a lethal foal. Cute mare. Remember frame can be present on a horse with not even a speck of white on them. So be selective in your stud choice.
        02-17-2013, 02:20 PM
    Definitely frame. Possibly sabino, but I don't see splash. I wouldn't waste the $25 on a frame test personally.
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        02-17-2013, 04:09 PM
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        02-17-2013, 05:10 PM
    Dark bay overo (frame). Heterozygous for agouti (bay) as she has produced black foals. From the information you've given us we couldn't say if she was homozygous or not for black, as both of the stallions have also had at least one black gene, you can't tell if any of them have red or not from these breedings.
        02-18-2013, 12:48 AM
    I was told that she is a true black. She's been out in the sun for a lot of the time last year & she got faded. She definitely isn't a bay. & the registry said "buckskin" for the stud.

    I can't find any info on the other guy, but the buckskin is here. Stallions @ Double BB Ranch

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