Genetic Variability of Arabidopsis thaliana Mature Root System Architecture and Genome-Wide Association Study.

ABSTRACT: Root system architecture (RSA) has a direct influence on the efficiency of nutrient uptake and plant growth, but the genetics of RSA are often studied only at the seedling stage. To get an insight into the genetic blueprint of a more mature RSA, we exploited natural variation and performed a detailed in vitro study of 241 Arabidopsis thaliana accessions using large petri dishes. A comprehensive analysis of 17 RSA traits showed high variability among the different accessions, unveiling correlations between traits and conditions of the natural habitat of the plants. A sub-selection of these accessions was grown in water-limiting conditions in a rhizotron set-up, which revealed that especially the spatial distribution showed a high consistency between in vitro and ex v

SUBMITTER: Deja-Muylle A 

PROVIDER: S-EPMC8831901 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature