Genome-Wide Selection (GWS)

Genome-Wide Selection (GWS) - Biotechnology and Plant Breeding: Applications and Approaches for Developing Improved Cultivars, March, p.105-133, 2014 .

There are four types of selection that use molecular markers: (1)gene-assisted selection (GAS), which is based on functional mutations and genes with known effects, or, in other words, the markers are the genes themselves; (2)marker-assisted selection using markers in linkage equilibrium with quantitative trait loci (QTLs)in the population (LE-MAS)but in linkage disequilibrium within families and crossings; (3)marker-assisted selection using markers in linkage disequilibrium at the population level (LD-MAS); and (4)genomic selection (GS)or genome-wide selection (GWS), which is based on thousands of markers in population-level linkage disequilibrium with all the QTLs for a polygenic trait. Of the four selection types, GWS tends to be the most efficient. Therefore, the present chapter will only discuss this method.


BLUP PROCEDURE
GENE-ASSISTED SELECTION (GAS)
GENOME-WIDE SELECTION (GWS)
GENOMIC SELECTION (GS)
QUANTITATIVE TRAIT LOCI (QTLS)
SINGLE NUCLEOTIDE POLYMORPHISM (SNP)