Expression pattern of GATA-1, SCL, and GATA-2 shown by in situ hybridization. (A-C) Control embryos injected with LacZ mRNA into 2 ventral-vegetable blastomeres. Embryos injected with truncated c-met mRNA into (D-F) 2 ventral-vegetable blastomeres or (G-I) dorsal-vegetable blastomeres. (A,D,G) Expression of GATA-1 at stage 32/33. (B,E,H) Expression of SCL at stage 30/31. (C,F,I) Expression of GATA-2 at stage 30/31. Yellow arrowheads indicate absence of expression of these genes. Anterior is right for all embryos.