Quantitative trait loci
In genetics, a quantitative trait locus (plural: loci) or QTL is a gene locus that contributes to a complex trait.
QTLs identify a particular region of the genome as containing a gene that is associated with the trait being assayed or measured. They are shown as intervals across a chromosome, where the probability of association is plotted for each marker used in the mapping experiment.
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QTL developed in the late 1980s. QTL can be done on inbred strains of any species.
