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Tag: breeding, Genetics, gerbil, mock blue, uw, uwd


In early 2013 I stumbled across a photo of a trio of gerbil from a breeder in Maine. I was immediatly stunned by their color, and knowing that there were not blues I contacted the breeder with the intent of getting 1 of these lighter mock-blues.  I ended up brining home the darker one.

I brought the female home and named her Taupe.  The breeder told me a few things about the line, that they were derived from stock he acquired 10 years ago and that this was a recent spontenous mutation. He claims there have been colorpoints, PEW, mock-blue, lilac, and black in the line.


Here she is again with a slate (top) and black (bottom) pups


And here she is with a blue male


When she was a bit older and fully developed I bred her to a C-Seperator male aaCchmeeggpp.

They had 6 pups in the first litter, 1 cream, 1 slate?, and 3 silver nutmegs?

The second litter: 3 silver nutmegs? 1 slate?, 1 PEW


Of the three silver nutmegs. One of them is molting into a strange color (right). The pup still has a faint dusting of ticking. All black pigments are greatly reduced. 

I have two possible theories on this.



It is an allele on the Uw locus.

uw does exist in the USA, and it is not impossible for me to have stumbled on an Azure female.

Problems with this theory is that Taupe is heterozygous. Her two sisters were signficantly lighter than her, and presumably homozygous. If they are in fact homozygous, then this can not be uw. uwuw are creams. Taupes sisters are mock-blue, and she herself is not that far off in color from a blue or slate. 

If the gene is on the Uw locus, I know that it isn't uw or uwd.



It is an allele on the C locus.

The PEW I assume is a pink eyed colorpoint.

will be back to edit more later