The phrase "breed group" refers to a collection or category of dog breeds that have similar characteristics or qualities. It helps to classify breeds based on their common traits, such as size, temperament, or purpose. Full definition
Each type is assigned to one of seven dog breed groups for which these dog breeds were originally developed for. (puppy-basics.com)
After the rescue, a conservation plan was developed for the animals and small breeding groups of horses were placed with responsible parties. (en.wikipedia.org)
Nowadays, the great majority of lap dogs fall into the toy breed group. (notinthedoghouse.com)