Genome-Wide Association Studies of Maize Seedling Root Traits under Different Nitrogen Levels.

ABSTRACT: Nitrogen (N) is one of the important factors affecting maize root morphological construction and growth development. An association panel of 124 maize inbred lines was evaluated for root and shoot growth at seedling stage under normal N (CK) and low N (LN) treatments, using the paper culture method. Twenty traits were measured, including three shoot traits and seventeen root traits, a genome-wide association study (GWAS) was performed using the Bayesian-information and Linkage-disequilibrium Iteratively Nested Keyway (BLINK) methods. The results showed that LN condition promoted the growth of the maize roots, and normal N promoted the growth of the shoots. A total of 185 significant SNPs were identified, including 27 SNPs for shoot traits and 158 SNPs for root traits. Four important candid

SUBMITTER: Fu Y 

PROVIDER: S-EPMC9182862 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature