Characterization of blood cell transcriptomes and identification of differentially expressed transcripts. (A) Numbers of genes detected as present in different blood cells. (B) Clustering of samples based on genes with high precision in the dataset. (C) Overlap of present genes in human blood cells. (D) Patterns of enrichment (red) or depletion (blue) for different biologic processes of the PANTHER classification for the genes differentially expressed in different blood cell types. The color range represents Z-scores (from Z = 3 to Z = 10 for enrichment and Z = − 3 to Z = − 10 for depletion). Functional categories containing at least 20 genes were used in this analysis.