Cbg Dominant Phenotypes

CBG-dominant phenotypes are cannabis plants bred to express elevated cannabigerol (CBG) levels, often at or above 1% by dry weight, while remaining low in THC and CBD. CBG is considered the "mother cannabinoid"—a precursor compound from which THC, CBD, and CBC are synthesized during plant development. Breeders isolate these phenotypes through selective crosses, typically starting with rare genetics or landrace material naturally skewed toward CBG expression. These plants mature earlier than standard varieties and often display distinct morphology, including tighter internodal spacing and altered terpene profiles. CBG-dominant cultivars remain relatively uncommon in seed banks due to breeding complexity and lower market demand compared to THC or CBD phenotypes.

Plant breeders working with CBG dominance focus on stabilizing early-onset cannabinoid expression and preventing conversion to downstream cannabinoids during flowering. This requires careful phenotype selection across multiple generations and understanding of the enzymatic pathways that govern cannabinoid synthesis.