您好,欢迎访问四川省农业科学院 机构知识库!

QTL Mapping for Grain Zinc and Iron Concentrations in Bread Wheat

文献类型: 外文期刊

作者: Wang, Yue 1 ; Xu, Xiaoting 1 ; Hao, Yuanfeng 1 ; Zhang, Yelun 2 ; Liu, Yuping 2 ; Pu, Zongjun 3 ; Tian, Yubing 1 ; Xu, Dengan 1 ; Xia, Xianchun 1 ; He, Zhonghu 1 ; Zhang, Yong 1 ;

作者机构: 1.Chinese Acad Agr Sci, Inst Crop Sci, Natl Wheat Improvement Ctr, Beijing, Peoples R China

2.Hebei Acad Agr & Forestry Sci, Inst Cereal & Oil Crops, Hebei Lab Crop Genet & Breeding, Shijiazhuang, Hebei, Peoples R China

3.Sichuan Acad Agr Sci, Inst Crop Sci, Chengdu, Peoples R China

4.Chinese Acad Agr Sci, Int Maize & Wheat Improvement Ctr CIMMYT China Of, Beijing, Peoples R China

关键词: Triticum aestivum; mineral biofortification; quantitative trait locus; 50K SNP array; KASP marker

期刊名称:FRONTIERS IN NUTRITION ( 影响因子:6.576; )

ISSN: 2296-861X

年卷期: 2021 年 8 卷

页码:

收录情况: SCI

摘要: Deficiency of micronutrient elements, such as zinc (Zn) and iron (Fe), is called "hidden hunger," and bio-fortification is the most effective way to overcome the problem. In this study, a high-density Affymetrix 50K single-nucleotide polymorphism (SNP) array was used to map quantitative trait loci (QTL) for grain Zn (GZn) and grain Fe (GFe) concentrations in 254 recombinant inbred lines (RILs) from a cross Jingdong 8/Bainong AK58 in nine environments. There was a wide range of variation in GZn and GFe concentrations among the RILs, with the largest effect contributed by the line x environment interaction, followed by line and environmental effects. The broad sense heritabilities of GZn and GFe were 0.36 +/- 0.03 and 0.39 +/- 0.03, respectively. Seven QTL for GZn on chromosomes 1DS, 2AS, 3BS, 4DS, 6AS, 6DL, and 7BL accounted for 2.2-25.1% of the phenotypic variances, and four QTL for GFe on chromosomes 3BL, 4DS, 6AS, and 7BL explained 2.3-30.4% of the phenotypic variances. QTL on chromosomes 4DS, 6AS, and 7BL might have pleiotropic effects on both GZn and GFe that were validated on a germplasm panel. Closely linked SNP markers were converted to high-throughput KASP markers, providing valuable tools for selection of improved Zn and Fe bio-fortification in breeding.

  • 相关文献
作者其他论文 更多>>