Systems analysis of transcriptome data provides new hypotheses about Arabidopsis root response to nitrate treatments.

ABSTRACT: Nitrogen (N) is an essential macronutrient for plant growth and development. Plants adapt to changes in N availability partly by changes in global gene expression. We integrated publicly available root microarray data under contrasting nitrate conditions to identify new genes and functions important for adaptive nitrate responses in Arabidopsis thaliana roots. Overall, more than 2000 genes exhibited changes in expression in response to nitrate treatments in Arabidopsis thaliana root organs. Global regulation of gene expression by nitrate depends largely on the experimental context. However, despite significant differences from experiment to experiment in the identity of regulated genes, there is a robust nitrate response of specific biological functions. Integrative gene network analysis u

SUBMITTER: Canales J 

PROVIDER: S-EPMC3917222 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature