Cbda Synthase Expression

CBDA synthase is the enzyme responsible for converting geranylpyrophosphate and olivetolic acid into cannabidiolic acid (CBDA) in cannabis plants. Expression levels of this enzyme vary significantly across cultivars and are a primary factor determining whether a plant produces high-CBD, high-THC, or balanced cannabinoid profiles. The gene encoding this enzyme (CBDAS) is well-documented in cannabis breeding literature, with expression patterns showing both genetic and environmental influences. Plants with robust CBDA synthase activity typically develop substantial CBDA accumulation during the flowering phase, though decarboxylation during drying and curing converts CBDA to CBD. Understanding synthase expression helps breeders select parent plants and predict cannabinoid outcomes in hybrid offspring.

Breeders monitor CBDA synthase expression to reliably produce CBD-dominant and balanced cannabinoid phenotypes. High expression in candidate parents is often confirmed through cannabinoid testing, allowing breeders to establish stable lines with predictable CBDA/CBDAS profiles across generations.