Abstract: Methods for introgressing an allele of interest of a locus associated with a yield trait into Zea mays germplasm are provided. In some embodiments, the methods include providing a Zea mays plant that contains an allele of interest of a locus associated with a yield trait, wherein the locus associated with the yield trait is identifiable by PCR amplification of a Zea mays nucleic acid with a pair of oligonucleotides primers as disclosed herein, and introgressing the allele of interest into Zea mays germplasm that lacks the allele. Also provided are methods for identifying Zea mays plants that contain at least one allele associated with improved yield, improved maize plants, elite Zea mays plants, biomass produced from improved Zea mays plants, isolated and purified genetic markers, and compositions that include an amplification primer pair capable of amplifying a Zea mays nucleic acid to generate a Zea mays marker amplicon.

Abstract: Methods for introgressing an allele of interest of a locus associated with a yield trait into Zea mays germplasm are provided. In some embodiments, the methods include providing a Zea mays plant that contains an allele of interest of a locus associated with a yield trait, wherein the locus associated with the yield trait is identifiable by PCR amplification of a Zea mays nucleic acid with a pair of oligonucleotides primers as disclosed herein, and introgressing the allele of interest into Zea mays germplasm that lacks the allele. Also provided are methods for identifying Zea mays plants that contain at least one allele associated with improved yield, improved maize plants, elite Zea mays plants, biomass produced from improved Zea mays plants, isolated and purified genetic markers, and compositions that include an amplification primer pair capable of amplifying a Zea mays nucleic acid to generate a Zea mays marker amplicon.

Abstract: A method for identification of trait loci using genetic marker loci and the use of genetic marker loci as a selection method in a plant breeding program is disclosed. The method comprises comparing genotypic survey data to phenotypic data collected from the same entries used to create the genotypic survey and identifying genetic marker loci that are associated with traits. The method allows new and superior plants to be identified and selected for in a plant breeding program by genotyping with identified genetic marker loci.