ATAC-seq of gata5GFP+/- cells in WT and Gata5/6 deficient zebrafish embryos during gastrulation. ATAC-seq of gata5GFP+/- cells in WT and Gata5/6 deficient zebrafish embryos during gastrulation

Gata5/6 are essential regulators in zebrafish heart development. To understand how Gata5/6 affects the chromatin accessibility and regulates cardiac gene expression, we FACS-isolated GFP+ and GFP- cells from Tg(gata5:GFP) transgenic embryos in both control and Gata5/6 deficient embryos (injected with Gata5/6 morpholinos) and conducted ATAC-seq. We performed the experiments at 8 hours post fertilization, intending to dissect the role of Gata5/6 in the earliest step in cardiac lineage specification. We did 2-3 biological replicates for each sample. ATAC-seq libraries were made using previously published protocol (Buenrostro et al., Nat. Methods, 2013. DOI: 10.1038/nmeth.2688) and sequenced on Illumina Hiseq2500.