Interesting Article--Ice Age Painters/Horse Color - The Horse Forum
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post #1 of 7 Old 11-10-2011, 04:54 PM Thread Starter
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Interesting Article--Ice Age Painters/Horse Color

I'll forgive them for using the term "dalmation horse"...lol I do wish they would have had a more horse savvy person writing it though.

Ice age painters: DNA evidence proves 'leopard' horses were REAL | Mail Online

it's still interesting :)
palominolover and inaclick like this.
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post #2 of 7 Old 11-10-2011, 05:34 PM
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Interesting. It still surprises me how the Lp complex could become prevalent in the wild. The only thing I can figure is that it may have broken up the contour of individual horses, like zebra striping. But you'd think that the negatives--like eye problems and increased cancer--would outweigh the benefits in this scenario.
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post #3 of 7 Old 11-10-2011, 05:51 PM
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Originally Posted by bubba13 View Post
Interesting. It still surprises me how the Lp complex could become prevalent in the wild. The only thing I can figure is that it may have broken up the contour of individual horses, like zebra striping. But you'd think that the negatives--like eye problems and increased cancer--would outweigh the benefits in this scenario.
There is a theory that spots, just as with the spots on feline leopards and many other animals, are vestiges of what once were stripes. I'm not sure I buy into it, but it is a convincing argument.

As far as the eye and cancer issues, any increase in cancer beyond normal in a horse would likely not be an issue as due to the age of onset it would not interfere with reproduction, thus would not normally be considered a natural selection factor. But the eye issue is a different matter, and you are correct - an inability to escape nocturnal predators should be a natural selection issue that would be normally bred out. Of course it is primarily an issue in homozygous horses, and it may be that the incidence of homozygosity in a mixed population would be low enough to render the issue mostly moot - unless there were a herd exclusively made up of naturally occuring LP horses, which would not be something anyone would expect...
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post #4 of 7 Old 11-10-2011, 07:23 PM
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Since the article would be read by the general public I think the description of dalmation type spots paints (pardon the pun) a pretty clear picture.
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post #5 of 7 Old 11-14-2011, 05:43 PM Thread Starter
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they actually were talking to someone about this on NPR this weekend...of course, it started up about 2 minutes before I had to walk inside to work...but I sat in my car to listen to some of it!

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post #6 of 7 Old 11-14-2011, 05:45 PM Thread Starter
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and yay for NPR having stuff online...now I can listen to all of it! Polka-Dotted Horses? Cave Art May Not Be Fantasy : NPR
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post #7 of 7 Old 11-17-2011, 04:05 PM Thread Starter
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Genotypes of predomestic horses match phenotypes painted in Paleolithic works of cave art another link someone gave me. Apparently politics are keeping the test for Lp from being released.
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