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Prospects for Genomewide Selection for Quantitative Traits in Maize

^a Dep. of Agronomy and Plant Genetics, Univ. of Minnesota, 411 Borlaug Hall, 1991 Upper Buford Cir., St. Paul, MN 55108
^b Dep. of Agronomy, Kansas State Univ., 2004 Throckmorton Hall, Manhattan, KS 66506

View larger version (22K): [in this window] [in a new window]   Figure 1. Genomewide selection and marker-assisted recurrent selection in maize.

View larger version (20K): [in this window] [in a new window]   Figure 2. True effects of 40 quantitative trait loci (QTL) and predicted breeding values, for genomewide selection, associated with 128 marker loci at different levels of testcross heritability (H). Predicted breeding values were for a population size of NDH = 144 doubled haploids in cycle 0 and were averaged across 1000 repeats of the simulation experiment. In each repeat, the 128 markers were ranked in descending order of their effects.

View larger version (22K): [in this window] [in a new window]   Figure 3. Strategic positioning of genomewide selection compared to other methodologies for gene discovery and selection for complex traits.