Cannabis genetics.

Gage Green Group’s breeding program has published 478 cultivars since 2008, each the work of continuous selection, hybridization, and stabilization, and its lines now run through the documented gene pool: 3,084 of the 37,299 cultivars in the registry descend from Gage Green lines (8.3%). Grape Stomper alone has 1,096 documented descendants, and Mendo Breath 1,465.

The breeding program operates through controlled crosses between selected maternal and paternal parents, with progeny evaluated across multiple generations for phenotypic expression, stability, and commercial value. Across the registry the program researches, 31,311 cultivars carry at least one documented parent, and 55,529 lineage links are mapped.

The program’s philosophy is open-community breeding. Genetic-provenance integrity is treated as a public good rather than a proprietary moat. Lineages are documented for the long horizon, breeder credit is preserved across institutional transitions, and the cultivar archive is structured to outlast any single operator.