quantitative trait


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quantitative trait

[‚kwänt·ə‚tād·iv ′trāt]
(genetics)
A trait that is under the control of many factors, both genetic and environmental, each of which contributes only a small amount to the total variability of the trait.
References in periodicals archive ?
Identification and mapping of quantitative trait loci associated with salinity tolerance in rice (Oryza Sativa) using SSR markers.
Detection of quantitative trait loci for growth and beef carcass fatness traits in a cross between Bos taurus (Angus) and Bos indicus (Brahman) cattle.
Fine mapping of a grain-weight quantitative trait locus in the pericentromeric region of rice chromosome 3.
Suto, "Quantitative Trait Loci that control plasma lipid levels in an [F.sub.2] intercross between C57BL/6J and DDD.Cg-Ay inbred mouse strains," Journal of Veterinary Medical Science, vol.
Zhu, "Effect of the scale of quantitative trait data on the representativeness of a cotton germplasm sub-core collection," Journal of Zhejiang University--SCIENCE B, vol.
Zeng, "Precision mapping of quantitative trait loci," Genetics, vol.
Confirmation of provisional quantitative trait loci for voluntary alcohol consumption: Genetic analysis in chromosome substitution strains and F2 crosses derived from A/J and C57BL/6J progenitors.
Since current study, was carried out using 214 lentil landrace collected from Jordan that exhibited high genetic variability between and within clusters for the majority of the studied quantitative traits. The incidence of highly significant variation between the landrace for the majority of the studied morphological traits such as seed yield, biological yield, plant height and number of pods, seeds and primary branches is a sign of the presence of high degree of genetic variation implying great potential of the landraces in future breeding programs through selection for the studied quantitative traits.
KEY WORDS: Genetic theory of alcohol and other drug use; genetic factors; environmental factors; behavioral phenotype; behavioral trait; quantitative trait gene (QTG); inbred animal strains; recombinant inbred (RI) mouse strains; quantitative traits; quantitative trait locus (QTL) mapping; multiple cross mapping (MCM); heterogeneous stock (HS) mapping; microsatellite mapping; animal models
Environmental effects do influence the phenotypic expression of a quantitative trait. An individual with an inferior genotype can rank higher phenotypically than individuals with superior genotypes because of favorable environmental effects.

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