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CODE: C128
DNA TEST:
Presence of black color, tan points and mask.
BREED STANDARDS FOR COAT AND NOSE COLORS:
Staffordshire Bull Terriers occur in black or fawn red or shades thereof such as blue, with or without some white
markings or brindle markings. Some appear almost completely white. There are two "a" alleles at the agouti locus in
Staffordshire Bull Terriers (ay and at). The black-and-tan pattern is undesirable; therefore, dogs that are ay
ay are preferred. Staffordshire Bull Terriers may be brindle or solid colored. Dogs that have at least
one ay allele, will be full-body brindles (except where white markings occur). Dogs that are atat
will have brindle only on their "points", i.e. they will be brindle where they would otherwise have had tan. Black dogs
with brindle points are not disqualified in some countries, even though they are atat. At the
present time, DNA testing is not yet available to detect the brindle allele. Solid black dogs, with or without white
markings, are caused by the presence of a K allele in this breed. DNA testing is not yet available to detect the alleles
at the K locus.
DNA testing is also not available for white markings or spotting. DNA testing for the "a" alleles
in Staffordshire Bull Terriers that are solid colored or black-and-tan allows breeders to better predict the colors of
pups from particular matings. Both Em and E alleles occur at the E locus. Em causes a black mask. This mask is not
visible on black dogs, nor easily visible on brindle dogs, but is obvious on fawn red dogs.
LINKS:
http://www.ssbtk.nu/ssbtk_engelska.htm
GENOTYPES:
| Genotypes |
Coat Color |
HiddenColor |
| EmEmayay |
fawn, red or full body brindle with mask |
- |
| EmEayay |
fawn, red or full body brindle with mask |
lack of mask |
| EEayay |
fawn, red or full body brindle |
- |
| EmEmayat |
fawn, red or full body brindle with mask |
tan points, black |
| EmEayat |
fawn, red or full body brindle with mask |
tan points, black, lack of mask |
| EEayat |
fawn, red or full body brindle |
tan points, black |
| EmEmatat |
black-and-tan or black with brindle points with mask |
- |
| EmEatat |
black-and-tan or black with brindle points with mask |
lack of mask |
| EEatat |
black-and-tan or black with brindle points |
- |
*-Note: All of these dogs would be black if "K" allele was also present.
SAMPLES:
Two types of samples can be submitted for this DNA test:
- A blood sample in a lavender (EDTA) tube;
- Cheek swabs
- Order a Sample Collection Kit!
PRICE:
- $105.00 *
Special contract prices are available for Breeder Clubs. Please contact us for more information.
* - subject to the applicable taxes (5% GST Canadian Residents only)
TEST RESULTS:
Test results are usually available in 10 business days from the moment the samples arrive at the laboratory. Test results can be reported by e-mail, fax, or by phone.
CERTIFICATION OF RESULTS:
HealthGene will provide a certificate for each test result.
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