• CCA Homepage
  • Meet a Chinook
  • 2022 Chinook Specialty
  • Chinook History
  • Chinook History Project
    • 1945-1946 The Pine Cone Magazine
    • 1947 Saturday Evening Post Article
  • Events Past
    • National Specialties
    • AKC Titles Earned
    • Who's At A Dog Show Glossary
  • AKC Registration
  • Chinook Health
    • Senior Dogs
    • Coat Color
    • 1998 Health Survey
    • Diversity Study 2007
  • Have we been busy!
  • Chinook Puppies!
  • CCA Breeders
    • Available Studs
  • Breed Standard
  • New Chinook Owners
  • Chinook Adoptions
  • CCA Board of Directors
  • Membership & Renewals
  • CCA Pete McMahon Fund
  • CCA Lonna Coleman Fund
  • Contact CCA
Chinook Club of America Inc
CHINOOK CLUB OF AMERICA, INC

2007 Joint CCA/COA Diversity Study by Mars
​

9-5-2008 Update from Dr. Paul Jones (Mars)
Chinook – update report 
The Chinook mixes are genetically very similar to the Chinook pures. Figure 1 shows a principle components analysis of the pures (blue dots) and the mixes. The principle components analysis takes up to 321 DNA measurements per dog and displays the genetic variability on a simple 2 dimensional plot. PC 1 and PC2 are simply axes that spread the data to show any differences present in the data.

​Figure 1. Principle component analysis of the pure and cross Chinooks kindly donated by the club members.
 (Each figure is presented on a different page for ease of reading.)

​The dogs can be labelled but with this much data can be a bit hard to read. Figure 2 shows us the Chinooks on a graph with Labradors. Labrador are the most genetically diverse breed. If the club is interested in this type of picture we can do several 3D rotations with the dog identity labels showing to explore the Chinook DNA diversity story.

Figure 2. Chinook pures and mixes ploteed with labels against a Labrador set of dogs.
​The Chinooks are most like Alaskan malamutes, Siberian huskies and german shepherd dogs. Figure 3 shows how coherent the Chinook breed is compared to Alaskan Malamutes and Huskies. This type of picture shows us that Chinooks are a solid breed demonstrating genetic similarity across the dogs.

Figure 3. Chinook Pure and crosses compared to Alaskan Malamutes and Huskies.
Picture
Figure 1
Picture
Figure 2
Picture
Figure 3
​If we generate a principle components graph of the breeds like Chinooks (figure 4) we can see the classic behaviour of a breed (the dogs stick together).

Figure 4. Principle component analysis of Chinooks, huskies, malamutes and Labradors.
Picture
Figure 4
 
      Home       Meet a Chinook    History     Breed Standard   Membership   
​ Puppies    Chinook Breeders          Stud Dogs    
Adoptions     New Owners  
Past Events        Activities        Have we been busy!        National Specialty        Health    
Pete McMahon Fund     Lonna Coleman Health Fund   
Contact CCA         Members' Only Login


Join CCA