Fig. 1

Charting chromatin landscapes of wheat embryogenesis. a Experimental design and major axes of the data series: data types and sampling developmental stages. The embryo sac was sampled for DPA0-DPA4, while the isolated embryo was used for DPA6-DPA22. DPA, days post anthesis. b Cluster dendrogram and PCA of transcriptome showing five distinct development stages: around double fertilization (DPA 0/2), pro-embryo (DPA 4/6), transition (DPA 8), differentiation (DPA 12/16), and maturation (DPA 22). Three biological replicates were sequenced for each developmental stage. c Representative modules from WGCNA cluster and enrichment of corresponding GO. d The conserved and diversified expression pattern of representative genes between monocot (T. aestivum and B. distachyon) and dicot (A. thaliana) during embryogenesis. e–g Dynamic pattern of genome-wide chromatin accessibility measured by ATAC-seq during embryogenesis. PCA analysis (e), peak numbers and peak coverage dynamics (f), and peak distribution in different sub-genomes (g). Two biological replicates were used for data analysis