Genetic dissection of resistance to gray leaf spot by genome-wide association study in a multi-parent maize population.

ABSTRACT:

Background

Understanding the genetic mechanisms underlying gray leaf spot (GLS) resistance in maize is crucial for breeding GLS-resistant inbred lines and commercial hybrids. Genome-wide association studies (GWAS) and gene functional annotation are valuable methods for identifying potential SNPs (single nucleotide polymorphism) and candidate genes associated with GLS resistance in maize.

Results

In this study, a total of 757 lines from five recombinant inbred line (RIL) populations of maize at the F₇ generation were used to construct an association mapping panel. SNPs obtained through genotyping-by-sequencing (GBS) were used to perform GWAS for GLS resistance using a linear mixture model in GEMMA. Candidate gene screening was performed by analyzing the 10 kb regio

SUBMITTER: Hu C 

PROVIDER: S-EPMC10759574 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature