Dogs come in so many different colours, and their coat colours are created by the interactions of many different genes. The E locus is an important part of this group of genes and is responsible for many red, gold and cream coat colours as well as the classic black mask seen in breeds like Boxers and Pugs.
It is a good idea to choose our E locus panel when you aren't sure which which E locus alleles might be found in your dog. However if you are experienced and already know what you are after, you can order individual tests for either just red/black or just melanistic mask.
We report results from the E locus panel as either e1, E, or Em. It includes the common e1 allele and does not include e2 (found in Huskies) or e3 (found in cream Australian cattle dogs).