Terpene Expression Genetics

Terpene expression genetics refers to the hereditary factors governing volatile organic compound (VOC) production in cannabis plants. While all cannabis plants synthesize terpenes, the specific profiles, concentrations, and timing of terpene biosynthesis vary significantly across cultivars and are largely controlled by multiple genes. Breeders have long selected for distinct terpene phenotypes—from limonene-forward profiles to myrcene-dominant lineages—though the genetic mechanisms underlying terpene regulation remain incompletely characterized. Modern genetics research increasingly documents how environmental factors interact with underlying terpene genes to influence final volatile profiles. Understanding terpene expression patterns is central to breeding programs focused on flavor, aroma, and aromatic quality across generations.

Terpene expression genetics are fundamental to intentional breeding strategies aimed at stabilizing or amplifying specific aromatic profiles. Breeders working with terpene-focused selection often cross parent plants with complementary or intensified volatile profiles, then phenotype progeny to identify individuals showing heritable consistency in terpene output.