Myrcene Dominant Phenotypes

Myrcene-dominant phenotypes are cannabis plants where myrcene comprises a notably higher percentage of the total terpene profile compared to other volatile compounds. Myrcene, a monoterpene also found in hops, mango, and lemongrass, is one of the most abundant terpenes across cannabis genetics. Lineage records frequently report myrcene-dominant expression in indica-descended cultivars, though phenotypic variation occurs across all cannabis chemotypes. Breeders identify these phenotypes through gas chromatography testing or breeding notes tracking terpene ratios across generations. Understanding myrcene-dominant profiles helps in studying terpene heritability, breeding stability, and the relationship between terpenoid expression and plant structure.

Breeders working in myrcene-dominant categories track this trait to maintain consistency across seed batches and to explore how myrcene biosynthesis correlates with plant vigor, flowering time, and resin production. Myrcene dominance is often used as a phenotypic marker when selecting parent material for breeding programs targeting specific terpene ratios.