White coat color

Trait overview

Melanocortin 1 Receptor (MC1R), also known as the Extension locus, is a gene that is responsible for producing eumelanin (black) and phaeomelanin (red or yellow) pigments. There are six known variants of this gene. This genotype has inhibited black pigment production, which leads to cream, yellow, and/or red coats. The e³ variant is responsible for a pale yellow to white coat, and is only expected in Siberian and Alaskan Huskies. This gene is recessive.

Gene name(s)

MC1R

Inheritance

Autosomal recessive

More common in the following breeds

Alaskan Husky, Siberian Husky

Citations

10.1111/age.12660,10.1111/age.12660

https://www.omia.org/OMIA001199/9615/

https://vgl.ucdavis.edu/test/mc1r-dog