Genotypic Selection

Genotypic selection refers to breeding decisions made based on an organism's genetic makeup (genotype) rather than visible traits (phenotype). In cannabis breeding, genotypic selection involves identifying and propagating plants carrying desired alleles—gene variants that may not yet express visibly but carry breeding potential. This approach relies on molecular markers, pedigree tracking, and understanding inheritance patterns to predict offspring outcomes. Breeders working in this category often use genotyping tools to screen for recessive traits, disease resistance genes, or secondary metabolite pathways before flowering. Genotypic selection enables more precise lineage development and reduces unpredictable phenotypic drift across generations.

Professional breeders employ genotypic selection to accelerate stabilization of complex traits and reduce time spent on phenotypic culling. This method is particularly valuable when targeting traits with low heritability or those controlled by multiple genes.