Genome-wide association studies of Striga resistance in extra-early maturing quality protein maize inbred lines.

ABSTRACT: Identification of genes associated with Striga resistance is invaluable for accelerating genetic gains in breeding for Striga resistance in maize. We conducted a genome-wide association study to identify genomic regions associated with grain yield and other agronomic traits under artificial Striga field infestation. One hundred and forty-one extra-early quality protein maize inbred lines were phenotyped for key agronomic traits. The inbred lines were also genotyped using 49,185 DArTseq markers from which 8,143 were retained for population structure analysis and genome wide-association study. Cluster analysis and population structure revealed the presence of 3 well-defined genetic groups. Using the mixed linear model, 22 SNP markers were identified to be significantly associated with grain

SUBMITTER: Okunlola G 

PROVIDER: S-EPMC9911053 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature