Query (optional)   in Class  

GrainGenes Reference Report: TPG-9:3

[Submit comment/correction]

Reference
TPG-9:3
Title
Genome-wide association mapping of leaf rust response in a durum wheat worldwide Germplasm collection.
Journal
Plant Genome
Year
2016
Volume
9
Pages
3
Author
Aoun M
[ Show all 10 ]
Abstract
Leaf rust (caused by Puccinia triticina Erikss. [Pt]) is increasingly impacting durum wheat (Triticum turgidum L. var. durum) production with the recent appearance of races with virulence to widely grown cultivars in many durum producing areas worldwide. A highly virulent P. triticina race on durum wheat was recently detected in Kansas. This race may spread to the northern Great Plains, where most of the US durum wheat is produced. The objective of this study was to identify sources of resistance to several races from the United States and Mexico at seedling stage in the greenhouse and at adult stage in field experiments. Genome-wide association study (GWAS) was used to identify single-nucleotide polymorphism (SNP) markers associated with leaf rust response in a worldwide durum wheat collection of 496 accessions. Thirteen accessions were resistant across all experiments. Association mapping revealed 88 significant SNPs associated with leaf rust response. Of these, 33 SNPs were located on chromosomes 2A and 2B, and 55 SNPs were distributed across all other chromosomes except for 1B and 7B. Twenty markers were associated with leaf rust response at seedling stage, while 68 markers were associated with leaf rust response at adult plant stage. The current study identified a total of 14 previously uncharacterized loci associated with leaf rust response in durum wheat. The discovery of these loci through association mapping (AM) is a significant step in identifying useful sources of resistance that can be used to broaden the relatively narrow leaf rust resistance spectrum in durum wheat germplasm.
External Databases
https://doi.org/10.3835/plantgenome2016.01.0008
QTL
[ Hide all but 1 of 78 ]
QLr.WorldDurum-1A.1
QLr.WorldDurum-1A.2
QLr.WorldDurum-1A.3
QLr.WorldDurum-2A.1
QLr.WorldDurum-2A.2
QLr.WorldDurum-2A.3
QLr.WorldDurum-2A.4
QLr.WorldDurum-2B.1
QLr.WorldDurum-2B.2
QLr.WorldDurum-2B.3
QLr.WorldDurum-2B.4
QLr.WorldDurum-3A.1
QLr.WorldDurum-3A.2
QLr.WorldDurum-3A.3
QLr.WorldDurum-3B.1
QLr.WorldDurum-3B.2
QLr.WorldDurum-3B.3
QLr.WorldDurum-3B.4
QLr.WorldDurum-3B.5
QLr.WorldDurum-4A.1
QLr.WorldDurum-4A.2
QLr.WorldDurum-4A.3
QLr.WorldDurum-4B.1
QLr.WorldDurum-4B.2
QLr.WorldDurum-4B.3
QLr.WorldDurum-5A.1
QLr.WorldDurum-5A.2
QLr.WorldDurum-5A.3
QLr.WorldDurum-5A.4
QLr.WorldDurum-5A.5
QLr.WorldDurum-5B
QLr.WorldDurum-6A.1
QLr.WorldDurum-6A.2
QLr.WorldDurum-6A.3
QLr.WorldDurum-6B
QLr.WorldDurum-7A.1
QLr.WorldDurum-7A.2
QLr.WorldDurum-7A.3
QTL0002_LR-Aoun_et_al__2016
QTL0003_LR-Aoun_et_al__2016
QTL0004_LR-Aoun_et_al__2016
QTL0006_LR-Aoun_et_al__2016
QTL0008_LR-Aoun_et_al__2016
QTL0010_LR-Aoun_et_al__2016
QTL0012_LR-Aoun_et_al__2016
QTL0014_LR-Aoun_et_al__2016
QTL0016_LR-Aoun_et_al__2016
QTL0018_LR-Aoun_et_al__2016
QTL0019_LR-Aoun_et_al__2016
QTL0022_LR-Aoun_et_al__2016
QTL0024_LR-Aoun_et_al__2016
QTL0027_LR-Aoun_et_al__2016
QTL0028_LR-Aoun_et_al__2016
QTL0030_LR-Aoun_et_al__2016
QTL0032_LR-Aoun_et_al__2016
QTL0034_LR-Aoun_et_al__2016
QTL0036_LR-Aoun_et_al__2016
QTL0038_LR-Aoun_et_al__2016
QTL0040_LR-Aoun_et_al__2016
QTL0005_LR-Aoun_et_al__2016
QTL0007_LR-Aoun_et_al__2016
QTL0009_LR-Aoun_et_al__2016
QTL0011_LR-Aoun_et_al__2016
QTL0013_LR-Aoun_et_al__2016
QTL0015_LR-Aoun_et_al__2016
QTL0017_LR-Aoun_et_al__2016
QTL0020_LR-Aoun_et_al__2016
QTL0021_LR-Aoun_et_al__2016
QTL0023_LR-Aoun_et_al__2016
QTL0025_LR-Aoun_et_al__2016
QTL0026_LR-Aoun_et_al__2016
QTL0029_LR-Aoun_et_al__2016
QTL0031_LR-Aoun_et_al__2016
QTL0033_LR-Aoun_et_al__2016
QTL0035_LR-Aoun_et_al__2016
QTL0037_LR-Aoun_et_al__2016
QTL0039_LR-Aoun_et_al__2016
QTL0041_LR-Aoun_et_al__2016
Trait Study
Leaf rust, GWAS on World durum collection, Aoun2016

GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture.