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Re: [pyrnet] This Pyr almost looks like a red roan?



 <<There, they claim that he is not arrouye, rather they dub him a "red head." >>

If you read farther down the thread, note senior European judges/authorities such as Alain Pecoult and Guido Massimello consider him Arrouye.

<< I don't know a lot about arrouye, but I thought it was a dark red-rust color (that darkens with age unlike most Pyr pigmentation). >>

 Sort of.  Arrouye doesnt fade. It is possibly EE.  The presence of a melanistic mask (EmEm) can be debated I guess.

But remember that other colours can stay dark too.  Heavy markings are not that uncommon in the breed.

<<I did think that it had to do with the color of the markings showing under the extreme white spotting pattern....>>

That is right.  The best theory currently is that Pyreneans have an extreme white spotting pattern (sw ).  This website illustrates well how the coat colour patterns manifest: http://abnormality.purpleflowers.net/genetics/white.htm

<<Wouldn't roan affect the visibly pigmented areas of the dog, rather than the white that covers up the pigment?>>

Dogs with a roaning pattern (T locus) are generally born white (extreme white spotting) and then develop the colour pattern later - on the white areas.  It is opposite to Pyreneans which generally are born with stronger colour which fades.  The white on a Pyrenean will stay white.

Tracy Bassett
Espinay Pyrenean Mountain Dogs
"Putting te Breed before breeding"
Gunning NSW Australia
mobile: 0412167278
email: info@espinay.com
web: www.espinay.com






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