Type 1 Thc Dominant Chemotype

Type 1 THC-dominant chemotypes represent cannabis plants where cannabinoid synthesis pathways favor tetrahydrocannabinol (THC) production over cannabidiol (CBD). This chemotype classification emerged from research into the genetic and enzymatic factors controlling cannabinoid ratios, particularly the activity of THCA synthase versus CBDA synthase enzymes. Type 1 plants typically express minimal CBD content, though trace amounts may be present. This chemotype became the dominant focus of modern breeding programs throughout the late 20th and early 21st centuries. Understanding Type 1 genetics remains foundational for breeders selecting for THC-focused cultivar development and studying cannabinoid inheritance patterns.

Breeders working with Type 1 genetics use chemotype testing to identify and stabilize THC-dominant lines, ensuring cultivar consistency across generations. Knowledge of Type 1 expression helps predictably guide breeding programs toward desired cannabinoid profiles while studying how environmental factors and genetic background influence final chemotype expression.