Figure 2.

Relationships of Cells Inferred by Expression Data Recapitulate Known Cellular Relationships

A total of 890 probes (719 genes) with SD > 2 on a log2 scale across all cell types were selected (Figure S4A). A minimum spanning tree based on Euclidean distance measurements was calculated using these probes. Lengths of branches reflect the distance between cell types. Colors are as given in Figure 1. See Figure S4B for MST based on only transcription factors or surface markers (genes given in Table S4).