Fig. 2

General characteristics of molecular features in sheep skin tissue across developmental stages. a Principal component analysis (PCA) of all 18 samples based on the expression levels of four gene types and DNA methylation. PCG, protein-coding gene. b The distribution of gene expression and DNA methylation across number of stages. FPKM, fragments per kilobase of exon model per million mapped fragments; SRPBM, spliced reads per billion mapping; CPM, counts per million; FE, fold enrichment