>From: Rebecca Allbritton <[EMAIL PROTECTED]>


>without the white places on the head and neck. I am just learning about
>spotting patterns in mice and rats, and it seems strange that there are so
>many particular genes that have been found for these other rodents' spots,
>but only one for gerbils. <


Oh Rat spotting IMHO is quite fun :)



>with the different genes. Has the data which led to the conclusion of an
>e[f] allele been published anywhere, on the internet or elsewhere? The
>chi-square data, and the methodology, etc? I would very much like to read
>it.


I still havent seen anything.  i sure would liek to see it too.

Though i know cases in mice for exampel where things were so tightly linked
and the one was simply a modifier of the other (so not seen by a phenotype
if it seperated by itself) that they actually thought it was 1 mutation but
found out otherwise a loooong time later.  The Pearl article I sent to some
peopel that asked for it is another exampel of that- but it was linked much
more loosely.



>My question is: do the schimmel gerbils have normally colored skin as
>adults? Also, I don't have a male schimmel, and I wonder what color their
>scrotum is? I had always thought of them as black, because many years ago I
>had agouti and black gerbils, but then I noticed my dove's is quite white.
>Is the schimmel skin there and on the body somewhat orange? You see I
>wonder what happens to make the pigment not appear in the hairs any >more.


I jst checked a young and old (semi faded) DE Honey females- both have dark
skin.
I also have a chamapgne (spotted schimmel) male.  he looks BEW but with dark
eats, nose, etc.  Again, dark skin, dark scrotum.



> >> Is Pp schimmel a color between PP and pp, as one would
> >>expect?
> >>
> >Why would you expect that?
>
>Oops! I was thinking I had read something about that and I just went back
>and couldn't find it, so it must have been my imagination. =)

I think you are thinking of either 1 or both the followign and kinda mixed
them....

In gerbils, c(b) and c(h) do a slightly lighting effect (the difference
between a dove and lilac is what they carry ont he C locus but both are p/p.

In Rats, the r and p diluting genes can fade out soem other colours.  For
example, a A*RR is not as bright andwarm and show quality as is usually an
A*Rr.  Mink is strongly affected where aamm is a mink (dark chocolate with a
bluish tint, black eyes), and a aammPp or aammRr is a "ruby eyd mocha" or
"havana" whcih is a lighter, warmer, more "milky chocolate" colour with ruby
eyes.

ag
http://www.hd7.com/rodentfancy
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