Coat Genetics

 

Coat Length

Angora is the type of long hair that is common in the US. It is recessive.
 
Go - Standard or shorthair
go - Angora
 
Angora can be combined with other genes to produce different coat type.
 
Fuzzy or fuzzy hairless is recessive gene that produces a tightly curled coat. Technically, this coat type can be related to both length and curl. The coat can be very dense and curly or very sparse and irregular. The dense kind of fuzzy has been called "fuzzy" in most US standards, "frizzled" in AFRMA standards, and has been called "rex" in many European standards; be very careful not to confuse fuzzy with the real rex gene, however. The true rex gene produces waves in the coat and not the tightly crimped hair that is seen on a fuzzy. Fuzzies can be bred to have a very dense coat or to be almost entirely hairless.
 
Fz- Not fuzzy
fz- Fuzzy
 
True hairless is recessive. One way to tell the hairless gene can be distinguished from the fuzzy gene is that in true hairless, the mouse develops fur as a normal mouse but begins to lose it at about two weeks of age. Fuzzy hairless mice start with a thin coat and keep it.
 
Hr - Not hairless
hr - Hairless
 

Curly Genes

There are several types of curly mice. The most common types of curly are frizzy and rex. Either of these genes (or any other curly gene) can be combined with Angora to create the texel coat. Texels are both curly and angora.
 
Frizzie is the recessive curly gene.
 
Fr - Not frizzy
fr - Frizzy
 
Rex or Astrex is the dominant curly gene
 
Re - Rex
re - Not rex
 

Satin

Satin is the shiny, soft coat type. The gene acts by removing the outer layer of the hair, thus satin coats appear thinner than standard coats. Satin can be combined with any of the other coats. You can have satin angora, satin texel, satin standard, satin rex or satin frizzy, even satin fuzzy and hairless. Satin is recessive.
 
Sa - Not satin
sa - Satin
 
 
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