文献类型： 外文期刊
作者： Zhang, Yan 1 ; Xu, Ling 1 ; Fan, Xingming 2 ; Tan, Jing 2 ; Chen, Wei 2 ; Xu, Mingliang 1 ;
作者机构： 1.China Agr Univ, Natl Maize Improvement Ctr China, Beijing 100193, Peoples R China
2.Yunnan Acad Agr Sci, Inst Food Crops, Kunming 650205, Peoples R China
期刊名称：THEORETICAL AND APPLIED GENETICS （ 影响因子：5.699； 五年影响因子：5.565 ）
ISSN： 0040-5752
年卷期： 2012 年 125 卷 8 期
页码：
收录情况： SCI
摘要： Gray leaf spot (GLS), caused by the causal fungal pathogen Cercospora zeae-maydis, is one of the most serious foliar diseases of maize worldwide. In the current study, a highly resistant inbred line Y32 and a susceptible line Q11 were used to produce segregating populations for both genetic analysis and QTL mapping. The broad-sense heritability (H (2)) for GLS resistance was estimated to be as high as 0.85, indicating that genetic factors played key roles in phenotypic variation. In initial QTL analysis, four QTL, located on chromosomes 1, 2, 5, and 8, were detected to confer GLS resistance. Each QTL could explain 2.53-23.90 % of the total phenotypic variation, predominantly due to additive genetic effects. Two major QTL, qRgls1 and qRgls2 on chromosomes 8 and 5, were consistently detected across different locations and replicates. Compared to the previous results, qRgls2 is located in a 'hotspot' for GLS resistance; while, qRgls1 does not overlap with any other known resistance QTL. Furthermore, the major QTL-qRgls1 was fine-mapped into an interval of 1.4 Mb, flanked by the markers GZ204 and IDP5. The QTL-qRgls1 could enhance the resistance percentages by 19.70-61.28 %, suggesting its usefulness to improve maize resistance to GLS.
- 相关文献
作者其他论文 更多>>
-
Genome-Wide Association Study and Prediction of Tassel Weight of Tropical Maize Germplasm in Multi-Parent Population
作者：Liu, Meichen;Zhang, Xingjie;Li, Jinfeng;Li, Linzhuo;Li, Shaoxiong;Zhang, Yudong;Shaw, Ranjan K.;Adnan, Muhammad;Jiang, Fuyan;Bi, Yaqi;Yin, Xingfu;Fan, Xingming
关键词：tassel weight; genome-wide association study; candidate gene; genomic selection
-
Evaluation of Genetic Diversity and Agronomic Traits of Germplasm Resources of Stropharia rugosoannulata
作者：Gu, Miao;Gu, Miao;Chen, Qiang;Wu, Xiangli;Zhao, Mengran;Gao, Wei;Gu, Miao;Chen, Qiang;Wu, Xiangli;Zhao, Mengran;Gao, Wei;Zhang, Yan;Wang, Li;Zhao, Yongchang
关键词：Stropharia rugosoannulata; germplasm resources; SNP; fingerprint; agronomic trait characteristics
-
Identification of a novel marker and its associated laccase gene for regulating ear length in tropical and subtropical maize lines
作者：Bi, Yaqi;Li, Kunzhi;Bi, Yaqi;Jiang, Fuyan;Zhang, Yudong;Kuang, Tianhui;Shaw, Ranjan K.;Adnan, Muhammad;Fan, Xingming;Li, Ziwei
关键词：
-
Comprehensive diallel analysis of combining ability and heterosis to Fusarium verticillioides ear rot resistance in maize
作者：Guo, Zifeng;Wang, Shanhong;Li, Wen-Xue;Xu, Yunbi;Zhong, Tao;Xu, Mingliang;Fan, Xing-Ming;Guo, Wei;Xu, Yunbi
关键词：
-
Genome-Wide Association Studies on the Kernel Row Number in a Multi-Parent Maize Population
作者：Wang, Yizhu;Ran, Fengyun;Yin, Xingfu;Jiang, Fuyan;Bi, Yaqi;Shaw, Ranjan K.;Fan, Xingming
关键词：maize; candidate gene; GWAS; QTL; KRN; GO/KEGG analysis; Mo17
-
Studies on Candidate Genes Related to Flowering Time in a Multiparent Population of Maize Derived from Tropical and Temperate Germplasm
作者：Ran, Fengyun;Wang, Yizhu;Jiang, Fuyan;Yin, Xingfu;Bi, Yaqi;Shaw, Ranjan K.;Fan, Xingming
关键词：maize flowering time; GWAS; estimated breeding value; tropical maize germplasm
-
Dissection of Common Rust Resistance in Tropical Maize Multiparent Population through GWAS and Linkage Studies
作者：Jiang, Fuyan;Bi, Yaqi;Yin, Xingfu;Zhang, Yudong;Shaw, Ranjan K.;Ijaz, Babar;Fan, Xingming;Li, Linzhuo;Li, Shaoxiong;Zhang, Xingjie;Liu, Meichen;Li, Jinfeng
关键词：tropical maize; multiparent populations common rust; QTL; GWAS; candidate genes
