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CODE: C128
DNA TEST:
Presence of tricolor and sable colors.
BREED STANDARDS FOR COAT AND NOSE COLORS:
There are two "a" alleles at the agouti locus in Collies which cause the three main coat colors. Each of these may occur with or without merle. At the present time there is no DNA test for merle, but since the merle pattern is exhibited by the Mm heterozygotes, the phenotype is predictive of the genotype. Note that MM dogs are primarily white and conscientious breeders avoid producing such dogs since deafness is typical and eye defects are also common.
DNA testing for the "a" alleles in Collies that are sable or tricolor allows breeders to better predict the colors of pups from particular matings. Although some breeders believe they can "see" the difference between a homozygous and heterozygous sable, this has not been reliable. Some breeders refer to dogs that are homozygous sable as "clear for sable". Collies are all EE and BB so although tests for the other alleles at these loci are available in our laboratory, these tests are not needed in Collies.
LINKS:
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GENOTYPES:
| Genotypes |
Coat Color |
HiddenColor |
| ayay |
sable |
- |
| ayat |
sable |
tricolor |
| atat |
tricolor |
- |
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:
- $65.00 *
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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