Research Background
I have spent 24 years at Cornell University studying the molecular genetics of coat color in domestic dogs. My lab mapped several key genes responsible for color patterns in herding breeds, including work on the Extension locus that determines white coat color in German Shepherds.
My research focus has always been the practical application of genetic knowledge. Understanding why certain dogs are white, why some patterns cause health problems, and how breeders can use genetic testing to make informed decisions.
Academic Work
I authored Canine Coat Color Genetics, which has become the standard reference text in the field. The book covers the molecular biology of pigmentation, inheritance patterns for all major color loci, and the health implications of specific genotypes.
My peer-reviewed publications include:
- Mapping of the e allele in German Shepherd populations
- Analysis of melanocyte migration in piebald patterns
- Review of color-linked health conditions in working breeds
- Guidelines for genetic testing in breeding programs
Through Cornell’s graduate program, I have trained dozens of veterinary geneticists who now work in research and clinical settings.
Why This Site
I created White Shepherd Genetics because I was frustrated watching misinformation about white shepherds persist despite clear scientific evidence. The genetics are not complicated. The health claims are unfounded. Yet myths continue to circulate that harm these dogs and their breeders.
This site presents the science as I understand it from 24 years of direct research. I do not hedge when the data are clear. White shepherds are normal dogs with a well-understood coat color genotype. That should not be controversial, yet somehow it remains so.
Contact
For questions about the content on this site, genetic testing recommendations, or speaking engagements, please use the contact form.
I respond to substantive genetics questions when time permits. For questions about specific breeding decisions, I recommend consulting with a veterinary geneticist who can review your individual situation.