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GrainGenes Reference Report: TAG-112-787

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Reference
TAG-112-787
Title
Advanced backcross QTL analysis of a hard winter wheat x synthetic wheat population.
Journal
Theoretical and Applied Genetics
Year
2006
Volume
112
Pages
787-796
Author
Narasimhamoorthy B
Gill BS
Fritz AK
Nelson JC
Brown-Guedira GL
Abstract
Advanced backcross quantitative trait locus (AB-QTL) analysis was used to identify QTLs for yield and yield components in a backcross population developed from a cross between hard red winter wheat (Triticum aestivum L.) variety Karl 92 and the synthetic wheat line TA 4152-4. Phenotypic data were collected for agronomic traits including heading date, plant height, kernels per spike, kernel weight, tiller number, biomass, harvest index, test weight, grain yield, protein content, and kernel hardness on 190 BC2F2:4 lines grown in three replications in two Kansas environments. Severity of wheat soilborne mosaic virus (WSBMV) reaction was evaluated at one location. The population was genotyped using 151 microsatellite markers. Of ten putative QTLs identified, seven were located on homoeologous group 2 and group 3 chromosomes. The favorable allele was contributed by cultivated parent Karl 92 at seven QTLs including a major one for WSBMV resistance, and by the synthetic parent at three: for grain hardness, kernels per spike, and tiller number.
Map Data
Wheat, TA4152-4 x Karl92
QTL
QHd.ksu-2D
[ Show all 10 ]
Trait Study
Heading date, Narasimhamoorthy06
[ Show all 12 ]