The phrase "dog lineages" refers to the different groups or branches of dogs that have evolved or descended from a common ancestor over time. Full definition
«The burden of proof is higher» to support a scenario in which multiple domesticated dog lineages emerged independently in different parts of the planet, he says. (scientificamerican.com)
After extensive research, many breeders in their club discovered that some of their dogs had Australian Cattle Dog lineage. (platpets.com)
It is more closely associated with maternal lineages found in wolves, foxes, and jackals than with other dog lineages. (embarkvet.com)