Low Thc Expression

Low THC expression refers to cannabis plants that produce minimal tetrahydrocannabinol (THC) relative to typical cannabis genetics, often remaining below 5% by dry weight. This trait results from recessive alleles affecting cannabinoid synthase enzymes and regulatory pathways in the plant's secondary metabolism. Low THC phenotypes have been documented across many landrace and modern cultivar families, and their expression can be influenced by both genetic background and environmental factors during cultivation. Breeders and researchers working with low THC genetics document these traits to understand cannabinoid pathway regulation and to develop material suitable for jurisdictions with specific cannabinoid content restrictions.

Breeders interested in cannabinoid diversity use low THC genetics as parental material to study inheritance patterns and to create stabilized cultivars meeting legal or research requirements. Understanding low THC expression mechanisms helps inform broader cannabinoid breeding strategies and contributes to genetic mapping efforts within the species.