Breeding Networks

Breeding networks refer to documented relationships between cannabis cultivars that share common ancestry or have been deliberately crossed within organized breeding programs. These networks map how genetic material moves through commercial and craft breeding communities, revealing patterns of hybridization, backcrossing, and trait concentration across generations. Understanding breeding networks is essential for genetic literacy—they show which cultivars serve as parental stock, which traits cluster together through repeated selection, and how regional breeding practices shape available genetics. Networks also document seed sources, breeder attributions, and the historical record of how modern cultivars diverged from foundational landraces and early commercial lines. Analyzing these connections helps breeders identify genetic bottlenecks, plan crosses to introduce novel traits, and main

Breeders consult breeding networks to avoid unintended inbreeding, identify complementary parent material, and understand which traits are linked through co-inheritance. Mapping networks also helps preserve rare genetic backgrounds and plan crosses that combine desirable traits from distant lineages rather than repeatedly using the same popular parents.