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E extension ee Red ( genetic code ee
) The Masking Gene
Genetically,
an e/e red dog can be either black, diluted black
("blue or slate"), brown, or diluted brown (" lilac"). The best
way to tell the genetic color of the dog is to look at the nose.
If the nose,
eye rims & lips are:
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black,
the dog is genetically a black dog
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brown,
the dog is genetically a brown dog
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diluted black (blue/slate),
then
dog is genetically a blue dog
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rosey-brown or a brownish pink ( lilac),
the dog is
genetically a lilac dog |
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The puppy
shown, Glory, below is 3 weeks old in the photo on the left. You can see the spots of
pigment color coming in on her nose. The nose color is chocolate, proof
she is actually a chocolate whose true color is affected
or masked by
the ee red gene. In the right photo, you can see more of the brown
coming on on her nose and yes, she has two sky blue eyes. She was 7
weeks old in the right side photo. The bottom photo of her is taken at
12 weeks of age, ( her ears had been glued). Notice how her nose pigment
is filling in.
Her parents:
the sire is a chocolate merle/white carrying ee red and tan point. The
dam is a black saddleback carrying chocolate, ee red, blue and tan
point.
 
The ee reds shown
below is a black ( BB ), again notice the eye pigment. Both dogs have
been affected by the ee masking gene which blocks the eumelanin in the
coat color. Without the eumelanin no matter what color the dog actually
is it will appear to a shade from a deep ginger to a light biscuit. The
nose color will develop into the dudley nose that fades or washes out
over time. More about nose color on that page. Eye color can be most
colors since an ee red dog can be any color genetically.

The ee red
merle, ( yes, she's a merle ), shown below is yet a lighter shade of ee
red due to the merle which is also a dilution gene. Her nose is black as
you can see her in the other picture of her as a young pup. The ee red
doesn't allow the merle pattern to be seen even though it is there. The
ee red will not allow tan points to show either.

The pup shown
in the picture below is actually a blue as proven by his blue colored
nose leather. His sire is a ee red, genetically black carrying the blue
gene. His dam is a blue/white carrying the ee red gene. He looks strange
indeed! What's odd, is he was the darkest gold colored pup in the
litter, even though the others were black ee reds! If any one has pups
that they have produced in the color, please contact us!
The second
line of 3 photos were taken when he was 11 weeks old, ( his ears
were glued ). See the litter picture. Breeder: Visions Border Collies -
Texas USA
Please click on the thumbnail pictures to enlarge
This is his litter below. He's the
gold pup on the right of the two gold boys.

This lovely
ee red & blue bitch is named Nice Of You To Come Bye Red Rose, call name
Rosie is owned by
Bordermania
in Hungary.
Judit sent the photos below.




Below, Spinna,
a darker shade of ee red.
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