Maize responsiveness to Azospirillum brasilense: Insights into genetic control, heterosis and genomic prediction.

ABSTRACT: Several studies have shown differences in the abilities of maize genotypes to facilitate or impede Azospirillum brasilense colonization and to receive benefits from this association. Hence, our aim was to study the genetic control, heterosis effect and the prediction accuracy of the shoot and root traits of maize in response to A. brasilense. For that, we evaluated 118 hybrids under two contrasting scenarios: i) N stress (control) and ii) N stress plus A. brasilense inoculation. The diallel analyses were performed using mixed model equations, and the genomic prediction models accounted for the general and specific combining ability (GCA and SCA, respectively) and the presence or not of G×E effects. In addition, the genomic models were fitted considering parametric (G-BLUP) and semi-paramet

SUBMITTER: Vidotti MS 

PROVIDER: S-EPMC6555527 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature