Quantitative Trait Genetics
Quantitative trait genetics describes the inheritance of characteristics controlled by multiple genes rather than a single gene locus. In cannabis breeding, traits like plant height, cannabinoid potency, terpene profiles, and flowering time are often polygenic—meaning dozens or hundreds of genetic variants contribute to the final phenotype. This contrasts with Mendelian inheritance, where a single gene determines a trait. Breeders working with quantitative traits cannot predict outcomes with simple ratios; instead, they observe continuous variation across populations. Understanding quantitative genetics is essential for selective breeding programs aiming to stabilize desirable trait combinations across generations.
Quantitative Trait Genetics strains
No strains tagged into Quantitative Trait Genetics yet — they'll appear here as breeders submit lineage records under this family.
Quantitative trait genetics describes the inheritance of characteristics controlled by multiple genes rather than a single gene locus. In cannabis breeding, traits like plant height, cannabinoid potency, terpene profiles, and flowering time are often polygenic—meaning dozens or hundreds of genetic variants contribute to the final phenotype. This contrasts with Mendelian inheritance, where a single gene determines a trait. Breeders working with quantitative traits cannot predict outcomes with simple ratios; instead, they observe continuous variation across populations. Understanding quantitative genetics is essential for selective breeding programs aiming to stabilize desirable trait combinations across generations.
Breeders leverage quantitative trait principles through phenotypic selection and controlled crosses over multiple generations. Population-level observation and progeny testing help identify and isolate favorable allele combinations for traits like yield, cannabinoid production, and pest resilience.
Educational reference · Cultivar metadata only · No medical claims