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. 2009 Dec 24;5(12):e1000626. doi: 10.1371/journal.pcbi.1000626

Figure 4. Gene expression mosaics of the ATRA and DMSO-stimulated time course data.

Figure 4

The expression mosaics for the ATRA and DMSO-stimulated time course data capture spatial patterns in the data as the system iterates through the time series. These images are a graphical representation of dynamic expression changes in the data, clustered using a self-organizing map algorithm (SOM). We show how the overall expression trajectories for the ATRA and DMSO-stimulated data can be divided into components defined by the core and transient set of genes. Red denotes extreme positive log expression ratios, blue denotes extreme negative log expression ratios.