Dominant Trait Inheritance

Dominant trait inheritance describes how observable characteristics in cannabis plants are expressed when an organism carries at least one dominant allele for a given trait. In diploid cannabis genetics, a dominant trait will manifest phenotypically regardless of whether the plant is homozygous dominant (AA) or heterozygous (Aa), while recessive traits only appear in homozygous recessive (aa) individuals. Breeders working with aroma-related genes—such as terpene production profiles—frequently encounter dominant inheritance patterns that influence volatile compound expression across generations. Understanding which aromatic markers follow dominant inheritance helps predict offspring phenotypes and stabilize desired scent profiles in breeding programs. This principle applies broadly across plant structure, flowering time, and chemotype traits, making it foundational to deliberate strain de

Breeders leverage dominant aroma inheritance to efficiently concentrate desirable terpene profiles in F1 and subsequent generations. Recognizing which scent traits breed true or segregate recessively in later generations informs selection strategies and parent-pairing decisions for cultivar stabilization.