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Genome-wide association study (GWAS) of resistance to head smut in maize

文献类型： 外文期刊

作者： Wang, Ming 1 ; Yan, Jianbing 1 ; Zhao, Jiuran 2 ; Song, Wei 2 ; Zhang, Xiaobo 1 ; Xiao, Yannong 1 ; Zheng, Yonglian 1 ;

作者机构： 1.Huazhong Agr Univ, Natl Key Lab Crop Genet Improvement, Wuhan 430070, Peoples R China

2.Beijing Acad Agr & Forestry Sci, Maize Res Ctr, Beijing 100097, Peoples R China

关键词： MaizeSNP50;Genome-wide association study;Head smut;Zea mays

期刊名称：PLANT SCIENCE （ 影响因子：4.729； 五年影响因子：5.132 ）

ISSN： 0168-9452

年卷期： 2012 年 196 卷

页码：

收录情况： SCI

摘要： Head smut, caused by the fungus Sphacelotheca reiliana (Kuhn) Clint, is a devastating global disease in maize, leading to severe quality and yield loss each year. The present study is the first to conduct a genome-wide association study (GWAS) of head smut resistance using the Illumina MaizeSNP50 array. Out of 45,868 single nucleotide polymorphisms in a panel of 144 inbred lines, 18 novel candidate genes were associated with head smut resistance in maize. These candidate genes were classified into three groups, namely, resistance genes, disease response genes, and other genes with possible plant disease resistance functions. The data suggested a complicated molecular mechanism of maize resistance against S. reiliana. This study also suggested that GWAS is a useful approach for identifying causal genetic factors for head smut resistance in maize. Crown Copyright (C) 2012 Published by Elsevier Ireland Ltd. All rights reserved.

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