[nagdu] Chocolate Labs

Jessica Roberts kittycatforever0214 at gmail.com
Wed Apr 30 13:31:20 UTC 2014


my dog is a yellow but her mama was a black and her dad a chocolate,
alicia the mom and timber the dad for anyone who knows tse breeding
stock.

On 4/30/14, Tracy Carcione <carcione at access.net> wrote:
> So, breeding 2 yellows begets more yellows, which explains why GDB has so
> many more yellows than other places, or did when I was going there. They
> kept having successful yellows, so they keep breeding successful yellows.
> Tracy
>
> ----- Original Message -----
> From: "Ann Edie" <annedie at nycap.rr.com>
> To: "'NAGDU Mailing List,the National Association of Guide Dog Users'"
> <nagdu at nfbnet.org>
> Sent: Wednesday, April 30, 2014 5:09 AM
> Subject: [nagdu] Chocolate Labs
>
>
>> Hi, All,
>>
>>
>>
>> Here is a clip from the article on coat color inheritance in Labrador
>> retrievers that I found on Wikkipedia:
>>
>>
>>
>> ".a single genetic cross involving two black Labradors each with a
>> recessive
>> allele at both the B and the E locus (BbEe) has the potential of
>> producing
>> all of the possible colour combinations, while crosses involving
>> chocolate
>> dogs can never produce black (there being no dominant B allele in either
>> parent) but can give rise to yellow, while yellow Labradors will breed
>> true
>> <http://en.wikipedia.org/wiki/Breed_true>  with regard to fur colour.."
>>
>>
>>
>> My understanding from reading this article is that more than one gene is
>> involved in Lab coloration.  For one of the genes, black is the dominant
>> and
>> yellow is recessive.  That is why a breeding between 2 yellow parents
>> produces all yellow offspring.  But 2 black parents can both have one
>> recessive gene, and therefore, offspring can be of any color.  Two
>> chocolate
>> parents can produce both chocolate and yellow pups.  There is another
>> gene
>> which causes the range of colors within the yellow; and there is another
>> which affects the skin color separately from the coat color.  So it is
>> more
>> complicated than just a dominant/recessive situation.  This article
>> doesn't
>> even go into the situation where a yellow is bred to a black or chocolate
>> colored dog.  But it does state that black, chocolate, and yellow are the
>>
>> 3
>> colors of the Labrador retriever which are recognized by the AKC, in
>> other
>> words, all 3 colors are one and the same breed, so are not separated in
>> temperament or anything else other than color.  As with so many things, I
>> think our expectations of what we think the temperament or personality of
>> the different colors of individual dogs will be affects our perception of
>> those dogs.
>>
>>
>>
>> Best,
>>
>> Ann
>>
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>
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