Monogenic Inheritance

Monogenic inheritance describes traits controlled by a single gene locus, where offspring phenotypes follow predictable Mendelian patterns. In cannabis breeding, monogenic traits are relatively rare compared to the polygenic architecture governing most cannabinoid and terpene profiles. Classic examples in documented cannabis lineages include certain morphological features and some disease-resistance markers. Breeders studying monogenic traits can more reliably predict offspring expression across generations, making these traits valuable for foundational breeding programs. Understanding monogenic inheritance helps distinguish single-gene effects from the complex, multi-gene interactions that define most chemotype variation in cannabis.

Breeders leverage monogenic traits to establish stable marker systems and track inheritance patterns in controlled crosses. When working with confirmed monogenic characteristics, selection becomes more straightforward, though such traits represent only a small subset of commercially relevant cannabis genetics.