Mevalonate Pathway

The mevalonate pathway (MVA pathway) is a primary metabolic route through which plants synthesize isoprenoids, including cannabinoids and terpenes. In cannabis, this biochemical cascade produces isopentenyl pyrophosphate (IPP), a five-carbon building block that polymerizes into larger isoprenoid structures. Breeders and cultivators recognize that pathway efficiency can influence secondary metabolite accumulation, though genetic expression and environmental conditions significantly affect final cannabinoid and terpene profiles. The mevalonate route operates alongside the methylerythritol phosphate (MEP) pathway in cannabis chloroplasts, with both systems contributing to the plant's chemotype diversity. Understanding these metabolic routes supports breeding programs seeking consistent cannabinoid or terpene expression across generations.

Breeders studying isoprenoid-heavy cultivars may select for robust MVA pathway expression, as this can correlate with higher terpene and cannabinoid biosynthesis. Lineage records and biochemical studies help identify parent genetics that reliably produce desired secondary metabolites through efficient mevalonate metabolism.