Why do American Bullies, American Pit Bull Terriers, and American Staffordshire Terriers have shared Relatives?

Results including bully breeds can sometimes be a bit confusing, as these breeds are quite closely related.

It's quite common for mixed and single-breed American Pit Bull Terriers to have American Bully relatives and vice-versa. Despite being genetically distinct breeds, they share a close genetic history, as APBTs (among other breeds) were used as foundational breeds to develop the American Bully. We sometimes see American Bully relatives for APBTs and vice-versa when the APBTs in question were bred into a line of American Bullies.

While we are able to identify American Bully ancestry, it is not a breed we include on our list at present. There are some breeds that have genetic diversity that we have yet to capture on our reference panel. In some cases, we are able to return those breeds as an ancestry result, but only if we have documented the particular diversity found in the individual dog(s) being tested. This means that we can return results for some American Bullies, but certain diverse lines of Bullies may return as the component breeds used to create those lines. 

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