Genome-wide association mapping reveals novel sources of resistance to northern corn leaf blight in maize.

ABSTRACT:

Background

Northern corn leaf blight (NCLB) caused by Exserohilum turcicum is a destructive disease in maize. Using host resistance to minimize the detrimental effects of NCLB on maize productivity is the most cost-effective and appealing disease management strategy. However, this requires the identification and use of stable resistance genes that are effective across different environments.

Results

We evaluated a diverse maize population comprised of 999 inbred lines across different environments for resistance to NCLB. To identify genomic regions associated with NCLB resistance in maize, a genome-wide association analysis was conducted using 56,110 single-nucleotide polymorphism markers. Single-marker and haplotype-based associations, as well as Anderson-Darling tests, ide

SUBMITTER: Ding J 

PROVIDER: S-EPMC4546088 | biostudies-literature | 2015 Aug

REPOSITORIES: biostudies-literature