Chromatin is a genome-organizing platform, regulating gene expression, cell division, and differentiation. Genome-wide maps of chromatin states have become a powerful representation of genome annotation and regulatory activity. Currently, publicly available plant epigenomic data sets are emerging quickly. To better decode chromatin states with epigenomic data and discover causal functions hidden in plant chromatin, we integrated public and in-house data sets on diverse epigenetic modifications, defined chromatin states associated with distinct functions, and constructed a plant chromatin state database (PCSD). The discovery and characterization of plant chromatin states may offer insights into the locations and functions of regulatory regions and genes in response to developmental and environmental signals.
Yue Liu, Tian Tian, Kang Zhang, Qi You, Hengyu Yan, Nannan Zhao, Xin Yi, Wenying Xu, Zhen Su. (2018). PCSD: A plant chromatin state database. Nucleic Acids Research. 46: D1157-D1167. doi:10.1093/nar/gkx919.