Terpene Expression Mapping

Terpene expression mapping is a breeding and research framework that documents which volatile aromatic compounds appear in specific cannabis cultivars under defined environmental conditions. Rather than assuming static terpene profiles, this approach recognizes that terpene concentrations shift based on growing conditions, harvest timing, curing methods, and plant genetics. Breeders use mapping data to understand phenotypic variation within strain families and to identify cultivars that consistently express desired aromatic compounds across multiple growing cycles. This methodology underpins modern cannabis genetics documentation and helps distinguish genotype from phenotype in terpene profiles.

Professional breeders employ terpene expression mapping to select parent plants with stable, reproducible aromatic profiles and to track how environmental stress or nutrient shifts influence secondary metabolite production. This data informs selection decisions when breeding for consistency and guides understanding of which genetic markers correlate with specific terpene phenotypes.