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Article
The relationship between parental genetic or phenotypic divergence and progeny variation in the maize nested association map** population
Appropriate selection of parents for the development of map** populations is pivotal to maximizing the power of quantitative trait loci detection. Trait genotypic variation within a family is indicative of t...
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Article
Using molecular markers to identify two major loci controlling carotenoid contents in maize grain
Maize is an important source of pro-vitamin A; β-carotene, α-carotene and β-cryptoxanthin, and the non-pro-vitamin A carotenoids including lutein and zeaxanthin. In the present study, a recombinant inbred (RI)...
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Article
Quantitative trait loci analysis of phenotypic traits and principal components of maize tassel inflorescence architecture
Maize tassel inflorescence architecture is relevant to efficient production of F1 seed and yield performance of F1 hybrids. The objectives of this study were to identify genetic relationships among seven measured...
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Article
Genetic and QTL analysis of maize tassel and ear inflorescence architecture
Maize (Zea mays L.) ear inflorescence architecture is directly relevant to grain yield components, and tassel architecture is relevant to hybrid seed production. The objectives of this study were to (1) determine...
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Article
QTL and candidate genes phytoene synthase and ζ-carotene desaturase associated with the accumulation of carotenoids in maize
Carotenoids are a class of fat-soluble antioxidant vitamin compounds present in maize (Zea mays L.) that may provide health benefits to animals or humans. Four carotenoid compounds are predominant in maize grain:...
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Article
Sequence variation and genomic organization of fatty acid desaturase-2 (fad2) and fatty acid desaturase-6 (fad6) cDNAs in maize
Increased levels of oleic acid may enhance the nutritional and functional value of corn. Corn oil is primarily composed of palmitic, stearic, oleic, linoleic and linolenic fatty acids. Delta-12 desaturase in ...
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Article
Interaction of environment and ABA and GA treatments on the maize anther culture response
Treatments designed to influence abscisic acid (ABA) or gibberellin (GA) concentrations were applied to develo** tassels of maize (Zea mays L.) plants in different environments or to anthers in culture to deter...
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Article
Comparison of RAPD and RFLP markers for map** F2 generations in maize (Zea mays L.)
The F2 generations from two maize crosses were used to compare the ability of RAPD and RFLP marker systems to create a genetic linkage map. Both RFLPs and RAPDs were shown to provide Mendelian-type markers. Most ...
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Article
Change in ribosomal DNA spacer-length composition in maize recurrent selection populations. 2. Analysis of BS10, BS11, RBS10, and RSSSC
Four maize (Zea mays L.) populations selected for grain yield (BS10, Iowa Two-ear Synthetic; BS11, formerly Pioneer Two-ear Composite; RBS10, Illinois strain of BS10; and RSSSC, Illinois strain of Iowa Stiff Stal...
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Article
RFLP map** of the sugary enhancer1 gene in maize
RFLP marker data from an F2∶3 population derived from a cross between a sugary1 (su1) and a sugary enhancer1 (su1, sel) inbred were used to construct a genetic linkage map of maize. This map includes 93 segregati...
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Article
Change in ribosomal DNA intergenic spacer-length composition in maize recurrent selection populations. 1. Analysis of BS13, BSSS, and BSCB1
Five different ribosomal DNA (rDNA) intergenic spacer-length variants (slvs) were detected among the maize inbreds which were the progenitors of Iowa Stiff Stalk Synthetic (BSSS). One rDNASstI restriction site po...
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Article
Restriction fragment length polymorphism differences among Illinois long-term selection oil strains
Restriction fragment length polymorphism (RFLP) analysis was used to characterize variability in the Illinois Long-Term Selection Experiment oil strains. Considerable polymorphism was detected within each oil ...
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Article
Quantitative trait loci influencing protein and starch concentration in the Illinois Long Term Selection maize strains
A study was initiated to determine the number, chromosomal location, and magnitude of effect of QTL (quantitative trait loci or locus depending on context) controlling protein and starch concentration in the m...
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Article
RFLP analysis to identify putative chromosomal regions involved in the anther culture response and callus formation of maize
RFLP analysis was performed with anther culture-derived callus lines developed from the maize F1 hybrids Pa91 x FR16 (PF), H99 x Pa91 (HP) and H99 x FR16 (HF). Relatively evenly spaced RFLP markers were selected ...
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Article
Genetic analysis of nuclear control of T-urf13/orf221 transcription in T cytoplasm maize
The mitochondrial gene T-urf13 in T cytoplasm maize is associated with sensitivity to disease toxins and with cytoplasmic male sterility. T-urf13 is co-transcribed with an open reading frame designated orf221. We...
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Article
Variation in the ribosomal DNA intergenic spacer of a maize population mass-selected for high grain yield
Variation in the intergenic spacer of ribosomal DNA (rDNA) was detected among individual plants of the open-pollinated maize variety ‘Hays Golden’ and populations derived from this variety. rDNA intergenic spa...
