Mapping quantitative trait loci controlling agronomic traits in the spring wheat cross RL4452 × 'AC Domain'
- 1 October 2005
- journal article
- Published by Canadian Science Publishing in Genome
- Vol. 48 (5), 870-883
- https://doi.org/10.1139/g05-055
Abstract
Relatively little is known about the genetic control of agronomic traits in common wheat (Triticum aestivum L.) compared with traits that follow Mendelian segregation patterns. A doubled-haploid population was generated from the cross RL4452x'AC Domain' to study the inheritance of the agronomic traits: plant height, time to maturity, lodging, grain yield, test weight, and 1000-grain weight. This cross includes the genetics of 2 western Canadian wheat marketing classes. Composite interval mapping was conducted with a microsatellite linkage map, incorporating 369 loci, and phenotypic data from multiple Manitoba environments. The plant height quantitative trait loci (QTLs), QHt.crc-4B and QHt.crc-4D, mapped to the expected locations of Rht-B1 and Rht-D1. These QTLs were responsible for most of the variation in plant height and were associated with other agronomic traits. An additional 25 agronomic QTLs were detected in the RL4452x'AC Domain' population beyond those associated with QHt.crc-4B and QHt.crc-4D. 'AC Domain' contributed 4 alleles for early maturity, including a major time to maturity QTL on 7D. RL4452 contributed 2 major alleles for increased grain yield at QYld.crc-2B and QYld.crc-4A, which are potential targets for marker-assisted selection. A key test weight QTL was detected on 3B and prominent 1000-grain weight QTLs were identified on 3D and 4A.This publication has 55 references indexed in Scilit:
- Identification of QTLs and Environmental Interactions Associated with Agronomic Traits on Chromosome 3A of WheatCrop Science, 2003
- Mapping Genes Conferring and Suppressing Leaf Rust Resistance in WheatCrop Science, 1997
- Effect of Leaf Rust Resistance Gene Lr34 on Grain Yield and Agronomic Traits of Spring WheatCrop Science, 1997
- Selection for Early Heading and Correlated Response in Maturity of Soft Red Winter WheatCrop Science, 1992
- Effect of Lr34 Resistance on Leaf Rust Development, Grain Yield and Baking Quality in WheatPlant Breeding, 1990
- RFLP-based genetic maps of wheat homoeologous group 7 chromosomesTheoretical and Applied Genetics, 1989
- MAPMAKER: An interactive computer package for constructing primary genetic linkage maps of experimental and natural populationsGenomics, 1987
- Drought resistance in spring wheat cultivars. III.* Yield associations with morpho-physiological traitsAustralian Journal of Agricultural Research, 1979
- Cytogenetical studies in wheat iv. Chromosome location and linkage studies involving thePM2 locus for powdery mildew resistanceEuphytica, 1970
- THE ESTIMATION OF MAP DISTANCES FROM RECOMBINATION VALUESAnnals of Eugenics, 1943