Golden Retriever muscular dystrophy / GRMD (DMD-related) - Golden Retriever

What does this test examine?

This genetic test examines the DMD variant c.531-2A>G in the Golden Retriever. The test is used for Golden Retriever muscular dystrophy / GRMD. The condition is also known as DD-MD, X-linked muscular dystrophy, dystrophin-deficient muscular dystrophy, Duchenne-type muscular dystrophy and DMD.

What does this condition mean?

GRMD is the classic canine form of Duchenne-type muscular dystrophy. The DMD variant disrupts normal dystrophin production, making muscle fibres fragile and progressively damaged. Affected males develop severe muscle weakness, abnormal gait, swallowing or breathing problems and increasing muscle damage.

Practical value of this test

This test is important for Golden Retriever breeders because carrier females can appear normal while producing affected males. The result makes it possible to identify carriers directly and avoid risk matings.

• Shows clearly whether a dog is clear, carries the tested variant or is genetically affected.
• Supports targeted breeding plans and helps avoid matings with an increased risk of affected puppies.
• Helps breeders manage carriers or positive animals responsibly without unnecessarily losing valuable lines.
• Gives owners and veterinarians concrete genetic information when muscle weakness, delayed growth, abnormal gait or muscle atrophy occurs in a line.

Result and inheritance

This condition is inherited in an X-linked recessive manner. A dog with A/A or A/Y does not carry the variant. A female with A/G is a carrier. A male with G/Y or a female with G/G has the genotype that causes GRMD.