Effect of overexpression of Arabidopsis Dof5.8 from the MP promoter.

ABSTRACT: Vascular formation in the leaves of higher plants begins with the selection of cells poised to become preprocambial cells, some of which eventually develop into procambial cells. The initiation of this process is accompanied by auxin-responsive and MONOPTEROS (MP) transcription factor-mediated modulations in gene expression. Here, we show that MP directly activates the expression of Dof5.8, which encodes a transcriptional repressor. Consistently, mutations within Dof5.8 enhanced the phenotype of a weak allele of mp, resulting in abnormal root and cotyledon development. However, although mp mutants showed reduced vascular patterns in cotyledons, the mp dof5.8 double mutants displayed both reduced and more complex vascular patterns in individual cotyledons. Thus, Dof5.8 appears to be associa

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Shuichi Yanagisawa 

PROVIDER: E-GEOD-47808 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress