Location: Plant Science ResearchTitle: A genome-wide association study for partial resistance to maize common rust
|OLUKOLU, BODE - North Carolina State University|
|TRACY, WILLIAM - University Of Wisconsin|
|WISSER, RANDALL - University Of Delaware|
|DE VRIES, BRIAN - University Of Wisconsin|
Submitted to: Phytopathology
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 3/16/2016
Publication Date: 3/1/2016
Citation: Olukolu, B., Tracy, W., Wisser, R., De Vries, B., Balint Kurti, P.J. 2016. A genome-wide association study for partial resistance to maize common rust. Phytopathology. 1036:745-751.
Interpretive Summary: In this work we map resistance to common rust in maize in a maize diversity panel. We show that resistance to common rust is correlated with resistance to several other diseases and with defense response. We identify 3 regions of the genome which probably carry genes associated with resistance to common rust.
Technical Abstract: 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 SNP loci. Three loci associated with maize common rust resistance were identified. Candidate genes at each locus had predicted roles in cell wall modification.