Coat color DNA testing in dogs: theory meets practice

Area of Science:

• Canine Genetics
• Molecular Biology
• Animal Science

Background:

• DNA tests for dog coat color alleles are established in diagnostic labs.
• Early research focused on MC1R and TYRP1 genes, leading to widespread, long-term use.

Purpose of the Study:

• To retrospectively analyze the expanded applications of established dog coat color DNA tests.
• To investigate how client-driven use has broadened beyond original research parameters.

Main Methods:

• Retrospective analysis of DNA test application data.
• Review of genetic testing protocols using cheek brush DNA collection.
• Examination of owner-driven genetic information exchange via the internet.

Main Results:

• Established DNA tests for MC1R and TYRP1 are applied to a wider range of dog breeds than originally intended.
• Unexpected alleles were detected in breeds not part of the initial study.
• Client-initiated applications of DNA tests have significantly expanded.

Conclusions:

• Robust DNA testing protocols facilitate broader client use.
• Dog coat color DNA tests demonstrate utility beyond their initial, specific research applications.
• Client-driven innovation plays a key role in the evolution of genetic testing applications.