CUT&Tag datasets of H3K27me3, H3K4me3 and H3K27Ac in Arabidopsis Seedlings
The genome-wide profiling of chromatin states that are defined by different histone post-translational modifications, known as epigenomic profiling, is crucial for understanding the epigenetic regulations of gene expression, both in animal and plant systems. CUT&Tag (Cleavage Under Targets and Tagmentation) is a novel enzyme-tethering method for epigenomic profiling, initially developed for mammalian cells. CUT&Tag has several advantages compared to the most commonly used epigenomic profiling methods such as Chromatin Immunoprecipitation followed by high-throughput sequencing (ChIP-seq). CUT&Tag allows epigenenomic profiling from a much less amount of starting material compared to ChIP-seq. We profiled the genome-wide distribution of three histone modifications, H3K27me3, H3K4me3 and H3K27Ac, from a few seedlings of Arabidopsis that weighed around 0.01 grams. Analysis using the CUT&Tag datasets for the three histone modifications revealed their genomic locations and their relationship with the gene expression level, which are consistent with the expected effect of these histone marks on gene transcription. By comparing to the nucleosome occupancy data, we show that CUT&Tag reached nucleosomal resolution, a much higher resolution than ChIP-seq.