Myrcene Dominant Expression

Myrcene-dominant expression refers to cannabis plants where myrcene comprises a substantial portion of the terpene profile, often exceeding 50% of total terpenes. This classification describes the biochemical output of cultivars bred or selected for elevated myrcene production. Myrcene is one of the most commonly occurring terpenes in cannabis and is also found in hops, mangoes, and lemongrass. Plants exhibiting myrcene dominance are frequently tagged with earthy, herbal, or fruity aromatic notes depending on co-occurring terpenes. Lineage records and chemotype studies show myrcene dominance appears across diverse genetic backgrounds, suggesting multiple metabolic pathways can produce this expression.

Breeders working with myrcene-dominant cultivars use this trait as a marker for specific flavor and aroma objectives, often crossing known myrcene-rich parents to stabilize the expression. Myrcene dominance also correlates with certain plant morphologies and growth patterns, making it valuable in selection programs targeting both phenotypic and chemotypic goals.