Tawny: A Novel Light Coat Color Mutation Found in a Wild Population of Mus musculus molossinus, a New Allele At the Melanocortin 1 Receptor (Mc1r) Locus

摘要

We found a new coat color mutant in a population of Japanese wild mice (Mus musculus molossinus0 and called the trait tawny. The tawny mutant is characterized by a light yellowish brown coat color. The tawny hair has a so-called agouti pattern, but the yellow band is greatly lengthened. There are no differences between the tawny and wild- type hairs in size and the number of melanosomes.