How does the scientific difference between a white-coated dog and a standard GSD compare?

Answer

No greater than the difference between a Chihuahua and a Great Dane.

From a formal scientific viewpoint, using the Linnaean system, the White German Shepherd shares the exact same high-level classification as the standard black and tan German Shepherd Dog. The difference in coat color, determined by a recessive gene, does not alter the underlying species classification. This means that scientifically, the variation between a white-coated dog and one with a traditional sable coat is equivalent in magnitude to the variation observed between vastly different recognized breeds like a Chihuahua and a Great Dane; they remain variations within the single species, Canis familiaris. Biological divergence does not occur based on this color variation.

How does the scientific difference between a white-coated dog and a standard GSD compare?
animalclassificationDogcolorGerman Shepherd