Mapping of Quantitative Trait Loci

Mapping Of Quantitative Trait Loci

Quantitative trait loci (QTLs) are stretches of DNA containing or linked to the genes that underlie a quantitative trait. Mapping regions of the genome that contain genes involved in specifying a quantitative trait is done using molecular tags such as AFLP or, more commonly SNPs. This is an early step in identifying and sequencing the actual genes underlying trait variation. Quantitative traits refer to phenotypes (characteristics) that vary in degree and can be attributed to polygenic effects, i.e., product of two or more genes, and their environment.

Read more about Mapping Of Quantitative Trait Loci:  Quantitative Traits, Quantitative Trait Locus, QTL Mapping, Analysis of Variance, Interval Mapping, Composite Interval Mapping (CIM), Family-pedigree Based Mapping, See Also

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