Several PRG mutations alter expression of each sLRR at the germband extended stage. Expression patterns were monitored by in situ hybridization using digoxigenin labeled probes to the sLRR encoding gene listed at the top of each column on embryos homozygous for a PRG mutation as indicated in the lower right corner of each panel. The top panel in each column (A,F,J, P) shows the wild-type pattern for comparison. (A-E) Toll2 in run (B), prd (C), eve (D) and ftz (E); (F-I) Toll6 in ftz (G), prd (H) and h (I); (J-O) Toll7 in run (K), ftz (L), prd (M), eve (N) and en (O); (P-U) Toll8 in ftz (Q), prd (R), eve (S) run (T) and h (U). Embryos are oriented anterior, left; dorsal, top.