Botanical Introgression Studies

Botanical introgression studies examine the deliberate or incidental transfer of genetic material between cannabis varieties, subspecies, or related plant taxa through hybridization and backcrossing. In cannabis breeding, introgression is both a documented practice and an area of active research, as breeders seek to incorporate traits—such as disease resistance, yield characteristics, or terpene profiles—from landraces or wild-type plants into cultivated lineages. These studies help document how genetic diversity flows through breeding programs and how traits become established in modern cultivars. Introgression can occur over multiple generations, making it a complex but valuable tool for understanding ancestry and trait inheritance in cannabis germplasm.

Breeders use introgression studies to map which traits from source populations have successfully integrated into their lines, and to identify which crosses are most likely to yield desired characteristics. Understanding introgression patterns also helps breeders avoid unintended consequences and maintain genetic stability across generations.