A Genome-Wide Association Study for Partial Resistance to Maize Common Rust

被引：42
作者：
Olukolu, Bode A. [1 ,2 ]
Tracy, William F. [3 ]
Wisser, Randall [4 ]
De Vries, Brian [3 ]
Balint-Kurti, Peter J. [1 ,5 ]
机构：
[1] N Carolina State Univ, Dept Plant Pathol, Box 7616, Raleigh, NC 27695 USA
[2] N Carolina State Univ, Dept Hort, Raleigh, NC 27695 USA
[3] Univ Wisconsin, Dept Agron, 1575 Linden Dr, Madison, WI 53706 USA
[4] Univ Delaware, Dept Plant & Soil Sci, Newark, DE 19716 USA
[5] USDA ARS, Plant Sci Res Unit, Raleigh, NC 27695 USA
来源：
PHYTOPATHOLOGY | 2016年 / 106卷 / 07期
基金：
美国国家科学基金会; 美国农业部;
关键词：
association analysis; disease resistance; linkage disequilibrium; QTL; QUANTITATIVE TRAIT LOCI; SWEET CORN; GENETIC ARCHITECTURE; DISEASE RESISTANCE; KERNEL COMPOSITION; PUCCINIA-SORGHI; LEAF RUST; PROTEIN; ENDOHYDROLASES; IDENTIFICATION;
D O I：
10.1094/PHYTO-11-15-0305-R
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Quantitative resistance to maize common rust (causal agent Puccinia sorghi) was assessed in an association mapping population of 274 diverse inbred lines. Resistance to common rust was found to be moderately correlated with resistance to three other diseases and with the severity of the hypersensitive defense response previously assessed in the same population. Using a mixed linear model accounting for the confounding effects of population structure and flowering time, genome-wide association tests were performed based at 246,497 single-nucleotide polymorphism loci. Three loci associated with maize common rust resistance were identified. Candidate genes at each locus had predicted roles, mainly in cell wall modification. Other candidate genes included a resistance gene and a gene with a predicted role in regulating accumulation of reactive oxygen species.
引用
收藏
页码：745 / 751
页数：7
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