Mapping genes for grain protein concentration and grain yield on chromosome 5B of Triticum turgidum (L.) var. dicoccoides

Grain protein concentration (GPC) is an important quality factor in durum wheat [Triticum turgidum (L.) var. durum]. Due to the strong environmental influence on GPC, molecular markers linked to quantitative trait loci (QTL) affecting GPC have the potential to be valuable in wheat breeding programs....

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Bibliographic Details
Published in:Euphytica 2004-02, Vol.139 (3), p.217-225
Main Authors: Gonzalez-Hernandez, J.L, Elias, E.M, Kianian, S.F
Format: Article
Language:English
Subjects:
1,000 kernel weight
agronomic traits
Agronomy. Soil science and plant productions
Biological and medical sciences
chromosome mapping
Fundamental and applied biological sciences. Psychology
Gene mapping
gene segregation
genetic markers
Genetics
Genetics and breeding of economic plants
Gluten
gluten strength
grain protein content
grain yield
heading date
height
Plant breeding
plant characteristics
protein content
quantitative trait loci
seeds
Triticum aestivum
Triticum turgidum
Triticum turgidum subsp. dicoccoides
Varietal selection. Specialized plant breeding, plant breeding aims
Wheat
wild relatives
Yield, quality, earliness, varia
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Summary:Grain protein concentration (GPC) is an important quality factor in durum wheat [Triticum turgidum (L.) var. durum]. Due to the strong environmental influence on GPC, molecular markers linked to quantitative trait loci (QTL) affecting GPC have the potential to be valuable in wheat breeding programs. Various quantitative traits in a population of 133 recombinant inbred chromosome lines were studied in replicated trials at three locations in North Dakota. Segregation for GPC, 1000-kernel weight, gluten strength, heading date, and plant height was observed. By relating phenotypic data to a linkage map obtained from the same population, three QTL affecting GPC, and one affecting yield were identified. The genotypic coefficients of determination for both traits were high.[PUBLICATION ABSTRACT]
ISSN:0014-2336
1573-5060
DOI:10.1007/s10681-004-3157-4