Genome-Wide Association Mapping of Processing Quality Traits in Common Wheat (Triticum aestivum L.)

被引:0
|
作者
Jin, Hui [1 ]
Tian, Yuanyuan [2 ]
Zhang, Yan [2 ]
Zhang, Rui [1 ]
Zhao, Haibin [1 ]
Yang, Xue [1 ]
Song, Xizhang [1 ]
Dimitrov, Yordan [1 ]
Wu, Yu-e [1 ]
Gao, Qiang [3 ]
Liu, Jindong [2 ]
Zhang, Jumei [1 ]
He, Zhonghu [2 ]
机构
[1] Heilongjiang Acad Agr Sci, Inst Forage & Grassland Sci, Harbin 150086, Peoples R China
[2] Chinese Acad Agr Sci, Inst Crop Sci, Natl Wheat Improvement Ctr, Beijing 100000, Peoples R China
[3] Heilongjiang Acad Agr Sci, Hort Branch, Harbin 150086, Peoples R China
关键词
bread wheat; GWAS; mixograph; SNP array; wheat quality; MARKER-ASSISTED SELECTION; DOUGH RHEOLOGY; LIPOXYGENASE;
D O I
10.3390/genes14091816
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
Processing quality is an important economic wheat trait. The marker-assisted selection (MAS) method plays a vital role in accelerating genetic improvement of processing quality. In the present study, processing quality in a panel of 165 cultivars grown in four environments was evaluated by mixograph. An association mapping analysis using 90 K and 660 K single nucleotide polymorphism (SNP) arrays identified 24 loci in chromosomes 1A, 1B (4), 1D, 2A, 2B (2), 3A, 3B, 3D (2), 4A (3), 4B, 5D (2), 6A, 7B (2) and 7D (2), explaining 10.2-42.5% of the phenotypic variances. Totally, 15 loci were stably detected in two or more environments. Nine loci coincided with known genes or QTL, whereas the other fifteen were novel loci. Seven candidate genes encoded 3-ketoacyl-CoA synthase, lipoxygenase, pyridoxal phosphate-dependent decarboxylase, sucrose synthase 3 and a plant lipid transfer protein/Par allergen. SNPs significantly associated with processing quality and accessions with more favorable alleles can be used for marker-assisted selection.
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页数:11
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