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my "calico" mice

chausies

chausies

New member
these are the transgenic line of mice, AKA "mikes mice."

The first male is my bicolored transgenic boy. They tend to take on a brindled look when there are no white markings to break up the colors. But since they are not dominant yellow based, they don't have the obesity problems of brindles, and they can produce the more calico looking mice when white markings are added. The second pic is of a more traditional looking "calico." The third pic is of a variegated (dominant white spotted) calico boy, which gives a different look than the usual recessive white spotting.
 

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I love ALL your mouse pics =)

Can you explain this in more detail? ... The first male is my "bicolored transgenic" ?

Thanks!!
 
certainly, but I'm not sure what you are asking specifically (are you wondering about the transgenic part, or the bicolor part?) so I'll try to cover all the bases.

The transgenic line of mice started in a lab. You can do a search and find all sorts of links, but a guy named Mike in NY managed to purchase some of those lab mice and he bred them for pets. These mice are the closest thing that we have to true calico mice because they can have 3 distinct, seperate colors (when white is included) on any part of their body. They can have black, red, or ruby eyes, or even 2 different eye colors on the same mouse. When you add white markings, the colors on these mice is broken up in such a way that has a calico appearance. But the transgenic mice that do not have white markings (either recessive or dominant spotting) take on a more brindled pattern. They are not related to brindle mice (which are a dominant yellow A^vy) so they don't get obese, and they don't have yellow colors. The transgenic mice without white markings will have 2 colors in the coat, therefore they are bicolors. As far as I know, there is no official name for the transgenic mice that lack white (the ones with white are typically called calico or genie mice.) Some people simply refer to these mice as "Mike's mice" since he is the founder of the pet lines. The original transgenic lab mice make up a tiny percent of the genetics of our current line. The color that creates a transgenic mouse is inherited recessively (seemingly on the c-locus, and can override other c-locus genes like siamese.)

Did any of that answer your question? If not, would you please restate it?

charlene
 
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