Disease Resistance Pathways

Disease resistance pathways in cannabis refer to the genetic and biochemical mechanisms plants use to defend against pathogens—fungi, bacteria, viruses, and mites. Breeders working in this category track heritable resistance traits, often by screening parent plants against common threats like powdery mildew, botrytis, and spider mites. Lineage records frequently report resistance phenotypes linked to specific cultivars, though the underlying genetic pathways remain incompletely mapped. Understanding these pathways helps breeders select for durability without relying solely on chemical inputs. Resistance traits are commonly polygenic, meaning multiple genes contribute to overall disease tolerance. This family is increasingly relevant as cultivation expands into diverse environments where pathogen pressure varies significantly.

Breeders use disease resistance as a primary selection criterion in parental crosses, especially when developing lines for outdoor cultivation or high-humidity environments. Incorporating documented resistance traits can reduce crop loss and support integrated pest management strategies without compromising other desired genetic features.