Mendelian Inheritance

Mendelian inheritance describes the predictable patterns by which traits pass from parent plants to offspring, following the genetic principles first documented by Gregor Mendel. In cannabis breeding, understanding dominant and recessive alleles helps breeders anticipate which phenotypic traits—including aroma, plant structure, and cannabinoid ratios—will appear in F1, F2, and subsequent generations. Not all cannabis traits follow simple Mendelian patterns; some are polygenic (controlled by multiple genes) or influenced by environmental factors. Breeders tracking aroma inheritance across generations often observe that certain terpene profiles segregate predictably, while others show more complex inheritance. This foundational genetic framework remains central to selective breeding programs and strain stabilization efforts.

Breeders use Mendelian principles to predict offspring traits when crossing parent plants with known phenotypes, accelerating the selection of desired aroma and morphology combinations. Understanding dominant versus recessive inheritance allows breeders to plan multi-generational crosses aimed at fixing specific terpene profiles or plant architectures.