Carotenoid Development

Carotenoid development refers to the biosynthetic pathways and genetic expression that produce orange, yellow, and red pigments in cannabis plant tissues, particularly in flowers, leaves, and trichomes. These compounds—including beta-carotene, lycopene, and xanthophyll—are secondary metabolites synthesized through the isoprenoid pathway and are influenced by light exposure, temperature, nutrient availability, and underlying genetics. Carotenoid visibility in cannabis is often more pronounced in cooler growing conditions and certain cultivar lineages, particularly those with heritage in high-altitude or temperate regions. Breeders have long observed carotenoid expression as a phenotypic marker, though the genetic regulation of these pigments remains incompletely mapped. Understanding carotenoid development contributes to broader plant biochemistry literacy and informs selection for specif

Breeders frequently use carotenoid pigmentation as a visual selection criterion and phenotypic marker during line development and cultivar stabilization. Controlling environmental conditions—particularly temperature and photoperiod—alongside genetic selection allows breeders to explore and stabilize high-carotenoid expressions in target families.