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Quantitative trait


Quantitative Traits Mapping Program
MIM v1.2 implements the Multipoint IBD method (Goldgar, 1990; Goldgar and Oniki, 1992) for partitioning genetic variance of quantitative traits to specific chromosomal regions using data on nuclear families.
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quantitative trait A genetic trait that is determined by multiple interacting loci, and for which there is a range of phenotypes between phenotypic extremes.
quark A subatomic particle found in the nucleus of the atom.
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Quantitative trait loci (QTL)
The location of a gene that affects a trait that is measured on a quantitative (linear) scale. These traits are typically affected by more than one gene, and also by the environment.
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the tendency of the quantitative traits of offspring to be closer to the population mean than are their parents' traits
Source: Jenkins, John B. 1990. Human Genetics, 2nd Edition. New York: Harper & Row
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A more recent development of quantitative genetics is the analysis of quantitative trait loci.
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A term coined by Galton for the tendency of the quantitative traits of offspring to be closer to the population mean than are their parents' traits.
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In animal studies of quantitative trait locus (QTL) mapping studies, two animals with extremes of the phenotype (like lowest and highest blood pressure) are mated to generate F1 and then F1 x F1
matings ...
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Mayr. 1997. What is Biology. Harvard University Press
Schluter, D., E. A. Clifford, M. Nemethy, and J. S. McKinnon. 2004. Parallel evolution and inheritance of quantitative traits. American Naturalist 163: 809-822.
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