Figure 1
From: Polymorphisms within the canine MLPH gene are associated with dilute coat color in dogs
Blue Doberman Pinscher und black-and-tan Doberman Pinscher. Blue Doberman Pinscher (A) and black-and-tan Doberman Pinscher (B). Note the coat color differences between the two animals. The black and reddish fur parts of the black-and-tan Doberman Pinscher are changed to paler coloring in the blue dog. Classical genetics states that the blue dog is homozygous for the recessive dilute allele (d).