Visual assays for late module reporter output. (A, D, G) Localization of gfp mRNA by WMISH in mesenchyme blastula stage embryos; (B–C, E–F, H–I) Fluorescent protein signals (Gfp and Rfp) in pigment cells of two-day embryos. Embryos injected with the intact late module reporters D-G-P-gfp (A, B) or D-G-P-rfp (C, F, I) have strong gfp signals at late blastula and have strong Gfp or Rfp signals in pigment cells. Embryos injected with the modified late module reporters D-Gdel1-P-gfp (D, E) or D-Gm7-P-gfp (G, H) have relatively weak outputs in these assays.