Mapping QTL for seed protein and oil content in eight soybean populations

Soybean [Glycine max (L.) Merr.] seeds contain high levels of protein and oil useful for human consumption. Increasing emphasis in breeding programs to produce soybeans with specific protein or oil content for specialty markets demands that more efficient manipulation of these traits be achieved. Th...

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Bibliographic Details
Published in:Crop science 1997-03, Vol.37 (2), p.370-378
Main Authors: Brummer, E.C. (Iowa State University, Ames, IA.), Graef, G.L, Orf, J, Wilcox, J.R, Shoemaker, R.C
Format: Article
Language:English
Subjects:
ACEITES VEGETALES
Agriculture
Agronomy. Soil science and plant productions
Biological and medical sciences
Biotechnology
CHEMICAL COMPOSITION
Chromosome mapping
COMPOSICION QUIMICA
COMPOSITION CHIMIQUE
CONTENIDO PROTEICO
Fundamental and applied biological sciences. Psychology
GENE
GENE MAPPING
GENES
Genetic aspects
GENETIC MARKERS
Genetics
Genetics and breeding of economic plants
GLYCINE MAX
GRAINE
HUILE VEGETALE
LINKAGE
LOCI
LOCUS
MARCADORES GENETICOS
MARQUEUR GENETIQUE
Oils & fats
Physiological aspects
PLANT OILS
Plant populations
PROTEIN CONTENT
Proteins
QUANTITATIVE TRAIT LOCI
QUANTITATIVE TRAITS
RFLP
SEED OILS
SEEDS
SEMILLA
Soybean
Soybeans
TENEUR EN PROTEINES
Varietal selection. Specialized plant breeding, plant breeding aims
Yield, quality, earliness, varia
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Summary:Soybean [Glycine max (L.) Merr.] seeds contain high levels of protein and oil useful for human consumption. Increasing emphasis in breeding programs to produce soybeans with specific protein or oil content for specialty markets demands that more efficient manipulation of these traits be achieved. The objective of this study was to evaluate eight different soybean populations from the midwestern USA for genetic markers linked to seed protein and oil content. The populations were derived from the breeding programs at the Univ. of Minnesota, the Univ. of Nebraska, and Purdue Univ.-USDA-ARS. Each population consisted of between 69 and 100 individuals and was mapped with 21 to 85 restriction fragment length polymorphism markers. The F2-derived populations were grown in field tests in 1992, 1993, and 1994 in the state in which they originated. Single factor analysis of variance was used to detect significant associations between markers and traits. Environmentally stable and environmentally sensitive quantitative trait loci (QTL) were identified for both protein and oil contents in all eight populations. The identified QTL were sensitive to both environment and genetic background although some common QTL were identified in multiple populations across several years. The results show that a number of QTL affect these traits and that markers could potentially be used in breeding programs designed to alter the seed protein and oil content
ISSN:0011-183X
1435-0653
DOI:10.2135/cropsci1997.0011183x003700020011x