Candidate loci for leaf angle in maize revealed by a combination of genome-wide association study and meta-analysis.

ABSTRACT: Leaf angle (LA) is a key component of maize plant architecture that can simultaneously govern planting density and improve final yield. However, the genetic mechanisms underlying LA have not been fully addressed. To broaden our understanding of its genetic basis, we scored three LA-related traits on upper, middle, and low leaves of 492 maize inbred lines in five environments. Phenotypic data revealed that the three LA-related traits were normally distributed, and significant variation was observed among environments and genotypes. A genome-wide association study (GWAS) was then performed to dissect the genetic factors that control natural variation in maize LA. In total, 85 significant SNPs (involving 32 non-redundant QTLs) were detected (p ≤ 2.04 × 10^-6), and individual

SUBMITTER: Duan H 

PROVIDER: S-EPMC9691904 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature