Canine Hair Length


Description:
Some breeds of dogs, such a Labradors, always have a short-haired coat. Other breeds of dogs, such as Poodles, always have long hair. Still other breeds can have either types of coat, such as the Dachshund. The long coat is caused by a recessive genetic mutation in the FGF5 gene.

Because it is a recessive mutation, a dog must have two copies of the recessive long-hair allele (l/l) to express that gene and cause the dog to have long hair. A dog that has short hair could have one or two copies of the short-hair allele (LL or Ll) to have the short-hair phenotype. Thus, it is possible for two short-haired dogs, if they are both carriers of the long-haired allele, to have a litter of both long-haired and short-haired pups. This may be of a concern for breeds in which long-hair does not fit the breed standard.


Hair Length Testing:
Animal Genetics currently offers a test to determine the number of copies of the recessive "long hair" allele a dog carries.

Dogs can be DNA tested at ANY age

Sample Type:
Animal Genetics accepts Buccal Swab, Blood, and Dewclaw samples for testing. Sample collection kits are available and can be ordered at Test Now.


Testing is Relevant For The Following Breeds:
Testing is appropriate for any type of dog suspected to have hair length. Testing is recommended for the following breeds.

Alaskan Malamutes, Bullmastiff, Chihuahuas, Cardigan Welsh Corgis, Dachshunds, Dalmatians, German Shepherd Dogs, Labrador Retrievers, Mastiffs, Norfolk Terrier, Norwich Terriers, Pembroke Welsh Corgis, Rottweilers, Schipperke, Shiba Inus, Weimaraners

Results:
Animal Genetics offers DNA testing for recessive L allele. The genetic test verifies the presence of the mutation and presents results as one of the following:

L/L Short Hair The dog is negative for the long-hair allele. The dog will have short hair, and will always pass on the allele responsible for short hair to any offspring.
L/l Short Hair Both the dominant and recessive alleles detected. The dog will have short hair, and carries the gene responsible for long hair. The dog can pass on a copy of either allele to any offspring.
l/l Long Hair The dog has two copies of the long-hair allele. The dog will have long hair, and will always pass on a copy of the long hair allele to any offspring.


To Submit a Sample For Testing:
Please download a submission form, or order canine sample collection kits at Test Now.


Mail samples to:
Animal Genetics UK,
PO BOX 107, Truro,
Cornwall, England.
TR1 2YR.



Animal Genetics UK
COLOUR & GENETIC TRAITS:
A-Locus (Fawn/Sable Allele)
A-Locus (Recessive Black Allele)
B-Locus (Black/Brown)
D-Locus (Dilution)
E-Locus (Recessive Yellow Allele)
E-Locus (Melanistic Mask Allele)
K-Locus
Hair Curl
Hair Furnishings
Hair Length
Bobtail Gene / Short Tail

CANINE GENETIC DISEASES:
CLAD - Canine Leukocyte Adhesion Deficiency
CD - Cone Degeneration
CNM - Centronuclear Myopathy
Canine Cystinuria
DM - Degenerative Myelopathy
Gray Collie Syndrome - Cyclic Neutropenia
EIC - Exercise-Induced Collapse
FVII - Factor VII Deficiency
CF - Canine Fucosidosis
HC - Hereditary Cataracts
NEwS - Neonatal Encephalopathy with Seizures
MDR1 - Multi-drug Resistance
MLS - Musladin-Lueke Syndrome
PFKD - Phosphofructokinase Deficiency
PRA - Cord1-PRA
PRA - Dominant PRA
PRA - rcd1-PRA
PRA - rcd3-PRA
PLL - Primary Lens Luxation
TNS - Trapped Neutrophil Syndrome
vWD Type1

DNA TYPING SERVICES:
DNA Profile
Parentage Testing

CANINE INFECTIOUS DISEASES:
Canine herpesvirus 1 (CHV-1)
Canine Adenovirus

OTHER SERVICES:
Bird Rings
"Buddy" Digital Egg Monitor
Avian Testing
Equine Testing
Feline Testing
Sheep Testing
Equine Coat Color Calculator


Pricing: 45.00 per test (inclusive of tax, certification included free of charge)
Turnaround time: 5-7 business days.
Results: Phoned, faxed or -mailed. Testing certificate dispatched after conclusion of test.