Comparison of the overall process of fruiting formation between
. A: Overall process of fruiting body formation in D. discoideum shown schematically as gene-expression relays. Extracellular signaling molecules are shown in red. Gray, orange, blue, and green ovules represent the expression of aggregation, spore-lineage, stalk-lineage, and terminal differentiation genes, respectively. UC: Upper cup; LC: lower cup; BD: basal disk. B: Possible gene-expression relays in A. subglobosum shown in correspondence with (A).