Black gene question

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by nonacona60 on 08 December 2009 - 20:12

Does an offspring have to have a blk gene from each parent to be able to produce solid blks. Or can only one parent contribute to offspring and offspring still be able to produce solid blk when bred to another with black gene?

by gagsd4 on 08 December 2009 - 20:12

In GSDs, black is recessive. Therefore to be black, both of the color genes possessed by a dog must be black.

Each parent donates one of those genes, so each parent must carry black to produce black.

So you could have sire is sable with black recessive, and dam is blk/tan with black recessive --or-- black sire and blk.tan dam with blk recessive. Any number of possibilities to produce a black puppy.

If you have a black parent, then ALL progeny will carry a copy of the black gene. So that theoretical puppy, bred to another that carries black, could produce black.

It is actually very simple, not nearly as confusing as this probably sounds:)

--Mary

by Two Moons on 08 December 2009 - 22:12

Once you go black you'll never go back...:)

by darylehret on 09 December 2009 - 01:12

Unless you're willing and able, to get a black sable.

by Two Moons on 09 December 2009 - 06:12

Well said.....:)

by AmbiiGSD on 09 December 2009 - 08:12

Does an offspring have to have a blk gene from each parent to be able to produce solid blks.

Yes

Or can only one parent contribute to offspring and offspring still be able to produce solid blk when bred to another with black gene?

Only in Russia apparently!!! (Yes that's sarcasm)

by Aida on 09 December 2009 - 09:12

Only in Russia apparently!!! (Yes that's sarcasm)

Not only in Russia

Don't forget about other countries from the former Soviet Union

There was a population of so-called East-German Shepherds in the former Soviet Union. This breed had been bred about 60 years ago mixing German shepherds and some other breeds, such as Great Danes, for example. So this breed (EGS) has a dominant black gene. If You will look in the pedigrees of all russian dogs with "dominant black gene", You will find east germans in them

by AmbiiGSD on 09 December 2009 - 10:12

Well *sheepish grin* I was trying not to over generalise

by Silbersee on 09 December 2009 - 15:12

Aida,
that is really scary! I try not to think about that. Maybe, that is the reason that most breeders in Germany do not want to touch any East European dogs, some even include East German ones! Years ago, a SV judge told me that you can not trust the accuracy of these pedigrees and hip ratings.

by ziegenfarm on 10 December 2009 - 18:12

hmmmm. might account for the big differences in appearance. shape of heads, facial markings, bone/structure. i had heard the same about unreliable pedigrees and hip scores. thought maybe it was just because someone wanted to do some bashing. maybe there is actually something to it.
pjp

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