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CODE: C128
DNA TEST:
Presence of "true red", black or black and tan or red with dark tips and chocolate or chocolate & tan coat colors, and black or brown nose in the following breeds:
- Miniature Long-haired Dachshund
- Miniature Smooth Dachshund
- Miniature Wire-haired Dachshund
- Standard Long-haired Dachshund
- Standard Smooth Dachshund
- Standard Wire-haired Dachshund
BREED STANDARDS FOR COAT & NOSE COLORS:
There are two "a" alleles at the agouti locus in Dachshunds (ay and at) which cause the two main underlying coat
color patterns: sable and black-and-tan (or chocolate-and-tan). Note that color terminology in Dachshunds is a bit
confusing in regard to sable and red. Sable is a reddish color with darker tips on some hairs. "Clear red" is a solid
red with no hint of black tips on any hairs. However, Dachshund owners have often used these terms interchangeably.
Each of these agouti colors may occur with or without dapple. At the present time there is no DNA test for Dapple (or
merle), but since the dapple 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 and eye
defects are common. White spotting also occurs in Dachshunds and no DNA test is yet available to predict this. It is
often called piebald in Dachshunds and is inherited as a recessive. Each of these agouti colors may also occur with or
without brindle. Dachshunds that have at least one ay allele will be full-body brindles. Dogs that are ata
t will have brindle only on their "points", i.e. they will be brindle where they would otherwise have had
tan. At the present time, DNA testing is not yet available to detect the brindle allele. Dogs which are "ee" may carry
brindle but would not express this pattern.
DNA testing for the "a" alleles in Dachshunds that are sable or
black-and-tan (or chocolate-and-tan) 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 fawn, this has not
been reliable. There are two common alleles in Dachshunds at the E locus: E and e. True red Dachshunds are "ee" and
this genotype masks the expression of brindle and tan points. Dachshunds have two alleles at the B locus: B and b. Dogs
that are "bb" will have chocolate-and-tan coats if they are atat, but only their noses will be
chocolate if they have an ay or are "ee".
Note: a coat of intermingled red and black or brown hairs, called "boar",
also occurs in this breed. We have not had the opportunity to study this color and therefore carriers can not be
distinguished at this time.
LINKS:
www.dachshund-dca.org/Colors.html
GENOTYPES:
| Genotypes |
Coat Color |
Nose Color |
HiddenColor |
| EEBBayay |
sable |
black |
- |
| EeBBayay |
sable |
black |
"clear red" |
| EEBbayay |
sable |
black |
chocolate |
| EeBbayay |
sable |
black |
"clear red", chocolate |
| eeBBayay |
"clear red" |
black |
black, sable |
| eeBbayay |
"clear red" |
black |
black, sable, chocolate |
| eebbayay |
"clear red" |
brown |
sable, chocolate |
| EEbbayay |
sable |
brown |
chocolate |
| Eebbayay |
sable |
brown |
"clear red", chocolate |
| EEBBayat |
sable |
black |
tan points |
| EeBBayat |
sable |
black |
"clear red", tan points, black |
| EEBbayat |
sable |
black |
chocolate, tan points, black |
| EeBbayat |
sable |
black |
"clear red", tan points, chocolate, black |
| eeBBayat |
"clear red" |
black |
sable, tan points, black |
| eeBbayat |
"clear red" |
black |
sable, chocolate, tan points, black |
| eebbayat |
"clear red" |
brown |
sable, chocolate, tan points, black |
| EEbbayat |
sable |
brown |
chocolate, tan points, black |
| Eebbayat |
sable |
brown |
"clear red", tan points, black |
| EEBBatat |
black-and-tan |
black |
- |
| EeBBatat |
black-and-tan |
black |
"clear red" |
| EEBbatat |
black-and-tan |
black |
chocolate |
| EeBbatat |
black-and-tan |
black |
"clear red", chocolate |
| eeBBatat |
"clear red" |
black |
black, tan points |
| eeBbatat |
"clear red" |
black |
black, chocolate, tan points |
| eebbatat |
"clear red" |
brown |
sable, chocolate, tan points |
| EEbbatat |
chocolate-and-tan |
brown |
- |
| Eebbatat |
chocolate-and-tan |
brown |
"clear red" |
SAMPLES:
One type of sample can be submitted for this DNA test: a blood sample in a lavender (EDTA) tube.
Blood can be collected by your veterinarian or a licensed veterinary technician and must be submitted with the HealthGene's submission form (download submission form).
HealthGene does not supply sample collection kits since your veterinarian will have the necessary supplies.
Collect 3ml of blood in a lavender (EDTA) tube from the dog. Do not freeze the sample at any time. Refrigeration is recommended if the sample will not be shipped on the day that it is collected.
Use the following couriers to ship samples to the laboratory:
1. Federal Express requires the outer rigid package be at least 7 x 4 x 2 inches in size. If it is smaller, it must be inserted into a plastic "Diagnostic Specimen Envelope" provided by them.
2. DHL Express requires the package be inserted into their green bag "lab pac". You should request one when you schedule a pick-up.
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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