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Mouse identification :D Mouse geeks come in...

DdotSpot

DdotSpot

The Snewbie
Ok, I've got this male:

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And I'm wondering if there's an official name for his coloring. He has ruby eyes(not pink) and a silver/gray coat. A friend and I were talking and she mentioned that it seemed like this was a sex-linked trait. Does anyone have any intell. on these guys? He's got beautiful coloring and I'd sure like to get a few females like him. Any input would be great!


A few more pictures....

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cute mice! I have a female that looks a lot like that, she has a beige colored tummy as well. I bred her to a black male with a beige tummy and two of the babies look just like him, one looks just like her, and two are black eyed white mice with some black markings on their heads.

i'm not sure what the official name is for that color though.
 
My friend thought that they might be called "Dove". But I just went to check on his belly and its the EXACT same color as the top of his coat.
 
I have a couple of males like that. I also have a male is is a beige color all over with ruby eyes. Thought they were interesting, so they got saved from the snake food pile.
 
He's a Mus Musculus~ and so are the other two mice in there!

Seriously~ I don't know the name for his coat color~ I breed for color in my colonies, but I don't know many of the names. I *think* that might be "Fawn"~ but I really don't know.

E-mail the user "Sasheena" and ask. She always seems to know mouse genes.
 
Id say Buff or Fawn. both are genetic and specific to the eye color as well. although looking closer at the fur, if you notice the color change slightly closer to the skin to a darker color ...then id be tempted to say a "blue agouti"

Agouti is trait that as the fur grows further out of the skin the pigment at the tips changes color. some variations are cinnamon Agouti (a beautiful reddish brown) Silver agouti (another possible for yours) fawn agouti (a pale warm tan color with brown undertones) and more.

if you are fond of that color it is a dominant gene (atleast thats what i have found)
 
An easy way to identify Agouti is to blow into the fur. Agouti animals will show 3 distinct rings of color.
 
He doesn't look at all Buff or Fawn to me. :) He does look Dove or Lilac (depending) ...

I have a mouse genetics web page here: http://www.geocities.com/mousedomousery/genetics/genetics.html that you might (or might not) find interesting.

The Dove mouse (a name that is used interchangeably with Lilac depending on if you're going by American or European standards) is a "red-eyed dilute of a black mouse).... basically the red eyes dilute the black coat color and make it look a pretty silver gray color. The Lilac mouse is a blue/brown combo mouse with black eyes.

Mouse genetics seemed simple when I first started breeding them... lots of genes to remember, but pretty cut and dried. But my own mouse colonies continue to defy anything/everything I ever read about it and I got kind of tired of it.

He's a cutie, that's the bottom line. I'm sure he'll taste the same to the snakeys.

I have a great new anomaly in my mouse collection... a mouse born with only one ear.
 
One eared mouse?

Are you going to breed the one eared mouse? It would be interesting to find out what happens one or two generations down the road, and if there are any abnormalities from it.
 
Yes, I will try to breed the one-eared mouse... will probably keep her with all her female siblings and one of her male siblings... quickest way to find out if it's genetic. But she doesn't seem very robust, so I wouldn't be surprised if she won't live that long.

I've had some interesting genetic experiments in my colonies. I had some mice born with curly tails... that went well for three generations, but then AC disaster (I'm queen of those) and all but one of the curlies were killed... and then he jumped out of my hands while cage cleaning and the "yard cats" JOB is to hang out and keep me company and mop up any "mouse spills"... so they got the mouse before I could recover him. (oops)... I had one whole litter of four brother mice all born with funky ears (blue mice, which traditionally have small/strange ears genetically linked to them).... two barely made it into adulthood before dying, one fathered two litters before dying and the other appeared to be sterile. The babies were sickly and died. The anomalies like this usually end up being dead ends, but I always work with them until they prove themselves out or die out.

The funniest thing I've had ever since my first litter of baby mice.... black-eyed-white mice... they're supposed to be relatively rare, aren't supposed to breed true, etc. I get one to four BEW mice in EVERY litter of mice. Approximately 25% of my collection is black eyed white! Lately I decided to breed the BEW and see if I could get them to breed true or with a higher percentage. I like BEW...they're cute. :)

My most successful breeders are usually a pale cream color with a darker beige/brown color on the back and a creamy white tummy. They get huge, have large robust litters (fuzzies the size of large hoppers), and always do very well with little to no cannabalism.
 
That is too funny! I told Daniel that I didn't know mouse genetics, but that I always call my mice which are that color "Dove." (Only because it reminds me of the color of a Dove.)

I personally have only gotten males that color, thus the statement about it possibly being a sex-link trait. Sasheena...do you know if it is?
 
There ARE sex linked traits but Dove is NOT one of them. If I remember correctly there is an english brindle (or was it tricolor?) that is sex-linked kind of like our calico cats ... only females.
 
Sasheena said:
There ARE sex linked traits but Dove is NOT one of them. If I remember correctly there is an english brindle (or was it tricolor?) that is sex-linked kind of like our calico cats ... only females.
Click to expand...
Cool! That's promising! I guess so far I've just been unlucky and only gotten males.
 
If I had a Dove colored male and I wanted to preserve the color (or if it was lilac) I would breed to black mice or blue or brown ones.... If the eyes are closer to black than to pink, I would suggest it's lilac, which means a combination of blue and brown and black. They're basically "triple homozygotes" with three recessive genes b/b (for brown) d/d (for blue) and a/a (for black). If you bred a lilac to a black mouse, you would learn pretty quickly if it was recessive for blue or brown or both. If it was recessive for blue and brown, you would get black, brown, blue, and lilac offspring.
 
As I mentioned before... One set of mouse color standards calls the two mice with that color (but different eye colors) Dove and Lilac, the other standard has them switched. So yes, it's a dove...

So is it a dove that is a/a p/p (black with the pink eye dilute) or is it a dove that is a/a b/b d/d (black/blue/brown dilute with black or very dark ruby eyes due to the brown dilute)?

I've found that sometimes it's impossible to know without a lot of test breeding. If you want more, then breed the father back to the daughters, you'll get more. :)
 
It *sounds* like he might be the triple homozygous black/brown/blue with very dark ruby eyes. His eyes are near black. You can see the 2 girls with him. Any ideas what they might throw just by looking at their coloring? This will be their first time breeding with this male. The black and white female mothered the brown and white girl.

Thanks again Sash, you got any good mouse genetic recommendation books?
 
The two mice with him appear to be a broken marked black mouse and a broken marked fawn.

If your mouse is a/a b/b d/d, then you will learn very quickly if your other mice have certain recessive traits.

The fawn could be one of two a-locus combinations (there are a few other possibilities, but those are more rare, so we'll assume for the moment she's not those other genes)... if she is A(y)/a then about half of the babies will be yellow and half will be a solid color. If she is recessive for b (brown) or d (blue) then you would expect about half of the remaining offspring to demonstrate these characteristics. So you would get out of 8 babies... 4 who are yellow, a black, a brown, a blue and a dove (daddy's color). Approximately. (don't feel like doing all those punnet squares and figuring out percentages).

The other possibility is that the fawn colored one is actually A(y)/A(y) which would mean that all her babies will be yellow. (depending on the presence or not of albino in both parents as a hidden recessive, which will supercede yellow)

Both females will demonstrate if your male is recessive for the broken marked trait. If he is you would expect roughly half of the babies to be broken marked (cow mice). The black broken marked female will also demonstrate her own recessive genes. If she is NOT recessive for blue or brown, then you would expect all her babies to be black. (again, this is assuming that both parents aren't recessive for albino, which does happen). If she carries the "blue gene" then you'll get some blue babies, and if she carries the "brown gene" you'll get blue, brown, and dove colored babies.

As far as good mouse genetics books, that book really isn't written... there's one available at jax website, but it's highly scientific. I printed it up and have a copy by binding up what is available on the website, but it's really very very technical. If hubby didn't have a master's degree in genetics, and I didn't have a degree in statistics, I don't think I would find it even slightly intelligible. I myself wrote my own genetics website based on the dilution and simplification of the genetics information available on the Jax website.
 
Well...fast forward a couple of weeks and here are some babies. The female had a patheticly small 2 mouse litter. But we did get a bit of variety.

Here are the 2 babies.

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Here's the brown baby off by itself. It looks to be the same color as the other brown girl that I have with the male. But it was mothered by the black and white female.
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