Coat Color Testing - S Locus

A mutation in the Microphthalmia Associated Transcription Factor (MITF) gene produces random white spotting in many dogs. The types of spotting patterns and terms used to describe them vary from breed to breed. Piebald, Parti, and Landseer are all random white spotting patterns caused by having two copies of the MITF mutation.

VetNostic Laboratories’ genetic test for the S locus can reliably identify:

N/N: Does not carry Piebald
S/N: Carrier of Piebald
S/S: Piebald

Volume discounts are available for Breeder Clubs, etc. Please contact us for more information.

Certification of Results

VetNostic Laboratories® will provide a certificate for each test result.


The following sample(s) can be submitted for the testing:
- Cheek swabs

Reporting Results

Test results can be viewed through your VetNostic Laboratories® web account within 10 business days from the moment the samples arrive at the laboratory. Results can also be reported via Mail, E-Mail, or Fax.

DNA Storage

VetNostic Laboratories provides DNA storage for all of our extracted specimens. If a customer wishes to perform an additional test on a previously extracted specimen they can simply call or email us with the animal's name and/or VNL number along with the test to be performed. This storage is provided free of charge.

American Cocker Spaniel
Basset Hound
Border Collie
Cardigan Welsh Corgi
Cavalier King Charles Spaniel
Chinese Shar-pei
English Bulldog
English Cocker Spaniel
French Bulldog
German Longhaired Pointer
German Shepherd Dog
German Shorthaired Pointer
German Wirehaired Pointer
Portuguese Water Dog
Saint Bernard
Yorkshire Terrier

Price: $40.00
Number of dogs to be tested: Add To Cart