Fig. 6. Distribution of ZFP8 and GIS2 transcripts in different Arabidopsis plant tissues. (A-D) In situ hybridization of GIS2 (A,C) and ZFP8 (B,D) probes to developing inflorescence organs of wild-type plants. GIS2 is strongly expressed in inflorescence meristems, floral meristems and the epidermis (arrows, A). ZFP8 is most highly expressed in developing cauline leaves (B). (C,D) Sections that were hybridized using sense RNA. (E) Real-time PCR analysis of ZFP8 (top) and GIS2 (bottom) expression in various plant tissues. Values are normalized to the expression of the UBQ10 gene. 1^stB, first branch; 2^ndB, second branch; CL, cauline leaf; DI, developing Inflorescence; Fl, flower; RL, rosette leaf; Sil, silique; St, main stem (base).