Geranylgeranyl Pyrophosphate Precursor

Geranylgeranyl pyrophosphate (GGPP) is a crucial C20 isoprenoid precursor in cannabis biochemistry that sits upstream of cannabinoid and terpenoid biosynthesis pathways. This molecule serves as the foundational building block for diterpenes and represents a critical metabolic branch point where the plant directs carbon flux toward secondary metabolite production. GGPP synthesis depends on sequential prenyl transferase reactions, and its availability directly influences the quantity and diversity of terpene and cannabinoid profiles across cultivars. Understanding GGPP's role in the mevalonate and methylerythritol phosphate (MEP) pathways has become increasingly relevant to breeders seeking to enhance aromatic complexity and cannabinoid expression through genetic selection.

Breeders working with high-terpene and cannabinoid-rich lines often observe correlations between metabolic efficiency in the GGPP pathway and the intensity of final aromatic profiles. Selecting for robust isoprenoid precursor availability may indirectly support expression of desirable diterpene and sesquiterpene diversity.