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["Table S1 ATAC-seq sequencing statistics of the samples"]
["Sample ID#","clean read (%)*","qualified read&","Peak number**"]
["LW45_F_1","192341844 (99.64)",170711396,32340]
["LW45_F_2","186153917 (99.78)",167628686,32849]
["LW45_M_1","184485159 (99.43)",163105217,63786]
["LW45_M_2","191578116 (99.68)",168433095,78393]
["LW70_F_1","186980053 (99.58)",164889775,78290]
["LW70_F_2","190174002 (99.67)",168868066,49989]
["LW70_M_1","182644676 (99.50)",162166422,82160]
["LW70_M_2","186274494 (99.71)",165677782,73148]
["LW100_F_1","184232097 (98.43)",152370243,76697]
["LW100_F_2","185234748 (99.03)",159030721,76980]
["LW100_M_1","185861908 (99.58)",158221414,81443]
["LW100_M_2","182118504 (98.60)",155922786,81387]
["# Sample ID demonstrates the following basic information: breeds ( LW: Large White;), Pregnancy time (45:45, 70:70, 100:100), gender ( M: male, F: female). "]
["*The percentage within the bracket manifests mapped reads as a percentage of total clean reads."]
["& reads after removing fragments from mitochondrial DNA, chromosome Y, MAPQ score<30, as well as duplicate fragments. "]
["**the number of peaks called by MACS2 for each individual sample."]