SRX3141083 SRA603258 whole_L3_worm_ATAC-seq_rep2;_Caenorhabditis_elegans;_ATAC-seq whole_L3_worm_ATAC-seq_rep2;_Caenorhabditis_ele... ATAC-seq ATAC-seq stage L3|whole worms stage L3 ATAC-seq