FIGURE 4: Roles of signal transduction pathways and master regulators on cell fate.

Known relationships between signal transduction pathways (filled rectangles), master regulators (open rectangles), and cell fate (abbreviations as in Fig. 3). The dotted arrow connecting the Ime1 and Ime2 master regulators (Ime1, 2) and phg represents that these master regulators are required for phg in some strain backgrounds but not in others. It should be noted that this diagram is meant as a working model of these relationships, other connections between pathways and regulators are likely.