Single base-resolution DNA methylation data in three contexts (CG, CHG and CHH (H=A, T or C)) were stored in wiggle (WIG) format (http://genome.ucsc.edu/goldenPath/help/wiggle.html
), prepared to be browsed in popular genome browser tools such like UCSC genome browser or IGV genome browser. The first row in the WIG file is the chromosome site and the second row is the DNA methylation level (methylated reads/total reads). Both plus and minus strands are included. Chromosome site without read coverage is not reported.