Disease Susceptibility Loci

Disease susceptibility loci refer to genetic regions associated with increased vulnerability to specific pathogens or environmental stressors in cannabis plants. These loci have been identified through molecular genetics research and breeding records, helping cultivators and breeders understand heritable resistance traits. Understanding susceptibility markers is relevant to breeding programs focused on pathogen resilience, particularly against powdery mildew, botrytis, and root pathogens. Lineage records frequently report that certain ancestral genetics carry either resistance or susceptibility alleles at key loci. This knowledge informs parent selection and helps breeders develop cultivars better suited to specific growing environments. Research into cannabis disease genetics remains ongoing, with new markers regularly documented in breeding literature.

Breeders use disease susceptibility locus mapping to make informed crosses, selecting parents with favorable alleles at known resistance loci while avoiding susceptible genotypes. Understanding these genetic markers enables targeted selection for environmental resilience without relying solely on phenotypic screening.