Myrcene Terpene Marker

Myrcene is a monoterpene frequently detected as a dominant volatile compound in cannabis cultivars, often comprising 20-65% of total terpene profiles in certain phenotypes. Lineage records commonly associate myrcene prominence with Indica-type genetics and Southeast Asian landrace ancestry, though myrcene-dominant expressions appear across diverse breeding populations. Breeders working with myrcene markers typically select for plants showing characteristic earthy, herbaceous, and clove-like aromatic notes during flowering and cure stages. The myrcene marker serves as a chemotaxonomic reference point in breeding programs seeking to stabilize or enhance this terpene's presence across generations. Detection methods include gas chromatography-mass spectrometry (GC-MS) and headspace analysis, making myrcene a reliably measurable genetic trait in cultivar documentation.

Myrcene-marker selection is employed by breeders developing cultivars with predictable aromatic profiles and specific sensory characteristics. This terpene's genetic linkage to certain phenotypic traits makes it useful as a secondary marker in backcrossing and stabilization programs targeting particular chemotypes.