Mapping and Dynamics of Regulatory DNA in Maturing Arabidopsis thaliana Siliques.

ABSTRACT: The genome is reprogrammed during development to produce diverse cell types, largely through altered expression and activity of key transcription factors. The accessibility and critical functions of epidermal cells have made them a model for connecting transcriptional events to development in a range of model systems. In Arabidopsis thaliana and many other plants, fertilization triggers differentiation of specialized epidermal seed coat cells that have a unique morphology caused by large extracellular deposits of polysaccharides. Here, we used DNase I-seq to generate regulatory landscapes of A. thaliana seeds at two critical time points in seed coat maturation (4 and 7 DPA), enriching for seed coat cells with the INTACT method. We found over 3,000 developmentally dynamic regu

SUBMITTER: Sullivan AM 

PROVIDER: S-EPMC6868056 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature