Myrcene Dominant Expression

Myrcene-dominant expression refers to cannabis genetics where myrcene comprises the largest fraction of the terpene profile, often exceeding 50% of total terpene content. This monoterpene is commonly associated with earthy, herbaceous, and sometimes fruity aromatic notes. Myrcene-dominant strains frequently appear across both indica and sativa lineages, suggesting the trait is genetically distributed across multiple breeding backgrounds. The prevalence of myrcene in cannabis is notable because it represents one of the most abundant terpenes in the plant kingdom overall. Breeders selecting for myrcene-dominant phenotypes typically identify candidates through gas chromatography testing during cultivar development.

Myrcene dominance is often maintained through selective breeding of parent lines known to express high myrcene levels, as terpene ratios can vary significantly even within a single strain family. Understanding myrcene expression helps breeders predict aromatic profiles and supports lineage documentation across generations.