ATRN - Attractin
This gene is involved in inflammatory immune response; possibly relevant in pigmentation because it's a low-affinity receptor for ASIP (by similarity).
Mouse
mahogany (four mutations with similar phenotypes)
Inheritence: recessive.
image source (+/+ is wild type, the rest are mahogany)
Rat
zitter
Inheritence: recessive.
agouti non-zitter (A/_ Zi/_), agouti zitter (A/_ zi/zi), non-agouti non-zitter (a/a Zi/_)
Golden hamster
black tremor
Inheritence: recessive.
I couldn't find a picture of this.












