A simple, scalable approach to building a cross-platform transcriptome atlas
Fig 2
The S4M blood atlas integrates samples from 38 independent datasets. Each point is sample, and there are 3700 genes used in construction of the PCA. The colour indicates the annotated cell type. Progenitors sit in a region in the corner, while the the myeloid and lymphocyte arms separate out. The lymphocyte region includes both T and B cells. Dendritic cells sit in the cloud in the center if derived from an in vivo source, or cord-blood derived DC sit in a group.