quantitative trait loci

Quantitative Trait Loci (QTL) are specific regions on chromosomes that are associated with measurable traits in organisms, such as height, weight, or yield in crops. Unlike traits determined by a single gene, quantitative traits are influenced by multiple genes and environmental factors. Researchers study QTL to identify the genetic basis of complex traits, which can improve breeding programs in agriculture and help understand genetic influences on diseases in humans. By locating QTL, scientists can better understand how traits vary and can be selected for in breeding or conservation efforts.