Pathogen Resistance Markers

Pathogen resistance markers refer to chemical compounds and genetic traits that plants develop to defend against fungal, bacterial, and viral pathogens. In cannabis breeding, these markers are studied as potential indicators of disease susceptibility or resilience, though resistance is polygenic and influenced by environment, cultivation practices, and plant genetics. Breeders working in this category often select for lineages historically grown in humid or challenging climates where pathogen pressure naturally favors survival traits. The presence of certain terpenes and secondary metabolites has been observed in cultivars with reported resilience records, though causation remains an active research area. Understanding these markers helps breeders develop more stable cultivars for diverse growing conditions.

Breeders use pathogen resistance markers to screen parent plants and predict offspring disease resilience. Selection for these traits can reduce crop loss in outdoor and greenhouse environments without relying solely on fungicides or chemical interventions.