Comparison of microarray signal intensity levels of genes of the sigma G regulon during late sporulation, derived from reference 61, and those found in dormant spores. The scatter plot shows the microarray signal intensity values of late-sporulation transcripts of the prespore after 6.5 h of sporulation and the microarray signal intensity derived from the spore transcripts. Indicated are the early (•) and late (○) subclasses of σG, expressed at relatively early and late stages, respectively, of prespore gene expression.