A new application of the Reduced Representation Bisulfite Sequencing method was developed using low-DNA input to investigate the epigenetic profile of human slow- and fast-twitch skeletal muscle fibers. Successful library construction was completed with as little as 15 ng of DNA and high quality sequencing data were obtained with 32 ng of DNA. Analysis identified 143,160 differentially methylated CpG-sites across 14,046 genes. In both fiber types, selected genes predominantly expressed in slow or fast fibers were hypomethylated, which was supported by the RNA-Seq analysis. These are the first fiber-type specific methylation data from human skeletal muscle and provide a unique platform for future research.
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