02624: Embracing Polygenicity of Common Complex Disease in Dogs: Genome-wide Association of Cruciate Ligament Rupture

Grant Status: Closed

Grant Amount: $154,116
Peter Muir, BVSc, PhD; University of Wisconsin, Madison
May 21, 2019 - October 31, 2022

Sponsor(s): American Field Pointer Association, Australian Terrier International, Labrador Retriever Club, Inc., Portuguese Water Dog Foundation, Inc., Retriever News - Entry Express, Rottweiler Health Foundation

Breed(s): Labrador Retriever
Research Program Area: Musculoskeletal Conditions and Disease
Donate to Support this Research Program Area


Cruciate ligament rupture (CR) is a common disabling, degenerative condition of the knee. It places a large financial burden on the American public. Inflammation of the stifle and fraying of cruciate ligament fibers, particularly in the cranial cruciate ligament, eventually leads to ligament rupture with associated stifle instability in affected dogs. CR is a moderately heritable, complex disease with genetic and environmental risk. CR is common in certain breeds, such as the Labrador Retriever, and rare in other breeds. There is a critical gap in knowledge regarding the genetic contribution to CR, as the number of genes influencing disease risk has never been studied in detail. Our main goal is to comprehensively analyze the genetic features of the disease across the genome and use this knowledge to develop a genetic test for CR disease risk using genomic prediction. We aim to robustly estimate heritability, analyze the genetic architecture of CR, and advance genetic testing using genomic prediction in the Labrador Retriever, the most common purebred dog breed. The rationale for this work is that detailed knowledge of the genetic features of CR will advance development of a genetic test for CR risk using genomic prediction. This work will fundamentally advance knowledge of the genetic architecture of CR, a very common canine disease. Consequently, such knowledge will provide an invaluable guide to future research into other canine complex diseases. CR genetic testing would enable early identification of at-risk dogs for precision medical care, and selective breeding to reduce the disease burden.

Learn how you can participate in this study!


None at this time.

Help Future Generations of Dogs

Participate in canine health research by providing samples or by enrolling in a clinical trial. Samples are needed from healthy dogs and dogs affected by specific diseases.

Learn How to Help

Get Canine Health News:
Please leave this field empty
American Kennel Club Canine Health Foundation, Inc

8051 Arco Corporate Dr.
Suite 300
Raleigh, NC 27617

Tax ID# 13-3813813


© 2021 AKC Canine Health Foundation | Privacy Policy | Site Map

Site by Blackbaud, Inc.