A quantitative trait locus (QTL) is a polymorphic locus that contains alleles
which differentially affect the expression of a continuously distributed
phenotypic trait. Usually a QTL is a marker described by statistical
association to quantitative variation in the particular phenotypic trait that
is thought to be controlled by the cumulative action of alleles at multiple
Thanks to the RGD for
providing this annotation. RGD is funded by grant HL64541 entitled "Rat
Genome Database", awarded to Dr. Howard J Jacob, Medical College of
Wisconsin, from the National Heart Lung and Blood Institute
(NHLBI) of the National
Institutes of Health (NIH).
Genetic analysis of inherited hypertension in the rat.
Physiol Rev. 2000 Jan;80(1):135-72.