FIG. 6.

Prespore cell fate bias in G₁-phase cells. Wild-type cells (AX4) marked with a ubiquitously expressed GFP reporter gene (act15/GFP) were mixed at a 1:9 ratio with unlabeled cells and allowed to develop on agar into slugs and fruiting bodies. Fluorescent images (upper panels) and bright-field images (lower panels) of slugs (left panels) and a fruiting body (right panels) are shown in both A and B. (A) G₁-phase, GFP-labeled cells mixed with unlabeled, G₂-phase cells. (B) G₂-phase, GFP-labeled cells mixed with G₁-phase, unlabeled cells. The white circles indicate the slug anteriors.