Use of RFLP markers in maize as an aid in selection during inbreeding

Molecular markers can be used to detect alleles in donor genetic material for improvement of existing cultivars or hybrids. Restriction fragment length polymorphisms (RFLPs) were used as markers to detect favorable quantitative trait alleles in the maize (Zea mays L.) population BS11(FR)C7 which were not in the hybrid 'FRB73 x FRMo17'. Thirty-four RFLP loci representing 16 chromosome arms were used to determine marker genotypes for 220 (BS11(FR)C7 x FRMo17) F2 individuals. Statistical associations between marker loci and trait expression in F2 x FRB73 progeny were found for grain yield, stalk and root lodging, plant and ear height, maturity, and seven grain yield component traits. Many RFLP loci were associated with expression of multiple traits. RFLP alleles from BS11(FR)C7 were favorable over those from FRMo17 for some loci in all but one trait. Digenic epistasis and environmental effects also appeared to influence marker-trait associations.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Crop Sciences

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2011

Author dc:creator

• Zehr, Brent Eugene

Contributors dc:contributor

• Dudley, John W.

• Agriculture, Agronomy
• Biology, Biostatistics
• Biology, Genetics

Statement dc:rights

• Copyright 1990 Zehr, Brent Eugene

Language dc:language

eng

Identifier

AAI9114479
(UMI)AAI9114479

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/21148