Splashed and PEW

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Splashed and PEW

Post by renapopma on Mon Jul 30, 2012 2:31 pm

Okay. Want to make sure I'm understanding how splashed works.
If I take a black and dove splashed and cross her with a PEW, I will get white
bubs with black splashes? I can later cross these bubs with a dove
and get back to dove and black splashed?

Reason I ask I have some great typey PEWs and some well marked but not
typey splashed that I want to breed to get a typey splashed. Ideas?

Thanks!!

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Re: Splashed and PEW

Post by madmouse on Mon Jul 30, 2012 6:24 pm

The splashed gene makes the "splashes" by disabling c-dilutes in some places so that dove-type color you see is the mouse's actual color (a/a + two c-dilutes). The black parts of the coat are where one of the two c-dilute's are disabled. When you cross them to a PEW you should get self and splashed mice (unless your splashed has 2 Spl genes, in which case you'd have all splashed) in black and/or whatever color the albinism is hiding in your PEW.

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Re: Splashed and PEW

Post by renapopma on Mon Jul 30, 2012 6:56 pm

Awesome. Thank you!

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Re: Splashed and PEW

Post by Laigaie on Wed Aug 01, 2012 7:44 pm

What are the c-dilutions of the splashed in question? If it's c*/c (meaning anything other than C or c and c), you could get half pews. c/c will not show splashing, because Spl does not disable c/c.
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Re: Splashed and PEW

Post by renapopma on Thu Aug 02, 2012 11:23 am

Thank you. The heart of my question was does c/c disable
splashing or not. Thank you. I will know more about them
when I get their pedigrees. This is in preparation for future
breeding. I've never bred splashed and I want to make the
most out of the gene pool I will have available. : )

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Re: Splashed and PEW

Post by renapopma on Thu Aug 02, 2012 12:29 pm

If they were cch/cch and crossed w c/c would
it be 25% pew or is it not that straight forward?
Thanks again. I know this is basic stuff to many
of you folks.

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Re: Splashed and PEW

Post by Laigaie on Thu Aug 02, 2012 7:46 pm

It totally is that straightforward, though the percentage is just an average, and may not hold true for each individual litter.

Wait, do you mean if you had a male: cch/cch and a female: c/c, and bred them together, would 25% be c/c? They would all be cch/c.

If you bred the cch/c to another cch/c, 25% of THOSE babies would be c/c, with 25% cch/cch, and 50% cch/c.


Last edited by Laigaie on Thu Aug 02, 2012 7:47 pm; edited 1 time in total (Reason for editing : realization!)
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Re: Splashed and PEW

Post by madmouse on Thu Aug 02, 2012 8:35 pm

Laigaie wrote:c/c will not show splashing, because Spl does not disable c/c.

I didn't know that! Could that be why solid (as opposed to pied) splashed mice may appear to have a coat of either three distinct shades or two? The 3-shade mouse is c^x/c^x, meaning it has patches where none, one or both c-dilutes are knocked out. But the mouse who is c^x/c has patches where neither or only one c-dilute are knocked out. This is just a guess, but it makes sense of my recent litter with a two-tone splashed, a three-tone splashed, and two PEW.

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Re: Splashed and PEW

Post by Laigaie on Thu Aug 02, 2012 9:27 pm

A c/c Spl/* mouse would be white. It would be just as white as c/c spl/*. It would never look like anything else, no matter whether it was pied. And you don't knock our one or the other of the c-dilutes, you knock out both of them or none of them.

So, tricolor (3-shade) mice, are piebald Splashes. They have the piebald (white), the diluted color (combination of dilutions), and the undiluted color. If your mouse is non-piebald, and appears to have more than just the diluted and the undiluted shade, then likely you're seeing either casting marks (molt marks) or darker parts of the diluted shading. For example, a siamese Spl will have a darker nose and rump, lighter body color, and near-black splashing. Since the nose and rump are lighter than the splashing but darker than the body color, it may appear that the mouse has three colors. In reality, one of those "colors" is simply in different shades because of the natural shading of the dilution. Does that make more sense?

Your litter in that instance might have been a siamese, a himilayan, and two PEWs, if you bred two ch/c mice together. Other c-dilutions that could present three colors (burmese, colorpoint beige) would not have put out PEWs. Or it could be cast marks, which appear on many varieties and sometimes stick around permanently, much to our despair.
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Re: Splashed and PEW

Post by madmouse on Fri Aug 03, 2012 3:48 pm

Thanks so much for the info! I've really been trying to find an explanation for the differences I've seen in my latest litter. It's been a puzzle lol.

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Re: Splashed and PEW

Post by renapopma on Fri Aug 03, 2012 3:57 pm

Thanks for the help and knowledge.

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