WT_B
genomic DNA spiked with 0.5 ng lambda DNA were fragmented by sonication to 200-300 bp with Covaris S220. These DNA fragments were treated with bisulfite using EZ DNA Methylation-GoldTM Kit (Zymo Research), and the library was constructed by Novogene Corporation (Beijing, China). Subsequently, pair-end sequencing of sample was performed on Illumina platform (Illumina, CA, USA). Library quality was assessed on the Agilent Bioanalyzer 2100 system. The library was sequenced on Illumina Novaseq platform. Image analysis and base calling were performed with Illumina CASAVA pipeline, and finally generated 151-bp paired-end reads.