Muscular Body
Back Muscle and Bulk
The Back Muscle and Bulk variant is associated with increased back muscle and fat. The variant is located in the ACSL4 gene.
Breeds
Back Muscle and Bulk is common in:
Bernese Mountain Dog
Greater Swiss Mountain Dog
Newfoundland
Dogue de Bordeaux
Cane Corso
Mastiff
Saint Bernard
Rottweiler
Bouvier des Flandres
Boerboel
Bullmastiff
More Info
Did you know?
Researchers believe that this variant arose relatively recently in dog breed development in England or France, and afterwards spread to other breeds in Europe.
How it works
One or two copies of the Back Muscle and Bulk variant may result in a bulkier more muscled back.
Prevalence
1 in 20 dogs
has one or more copy of this genetic variant in our testing.
Technical Details
| Gene | ACSL4 |
|---|---|
| Variant | C>T |
| Chromosome | X |
| Coordinate | 82,919,525 |
All coordinates reference CanFam3.1
References & Credit
Credit to our scientific colleagues:
Plassais, J., Rimbault, M., Williams, F. J., Davis, B. W., Schoenebeck, J. J., & Ostrander, E. A. (2017). Analysis of large versus small dogs reveals three genes on the canine X chromosome associated with body weight, muscling and back fat thickness. PLoS Genetics, 13(3), 1–20. View the article