Genome-Wide Association Study of Root System Architecture in Maize.

ABSTRACT: Roots are important plant organs for the absorption of water and nutrients. To date, there have been few genome-wide association studies of maize root system architecture (RSA) in the field. The genetic basis of maize RSA is poorly understood, and the maize RSA-related genes that have been cloned are very limited. Here, 421 maize inbred lines of an association panel were planted to measure the root systems at the maturity stage, and a genome-wide association study was performed. There was a strong correlation among eight RSA traits, and the RSA traits were highly correlated with the aboveground plant architecture traits (e.g., plant height and ear leaf length, r = 0.13-0.25, p < 0.05). The RSA traits of the stiff stalk subgroup (SS) showed lower values than those of the non-s

SUBMITTER: Wu B 

PROVIDER: S-EPMC8872597 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature