Figure 1.

Comparison of the position of the TGTCC auxin response elements (ovals) within DRN and DRNL upstream and downstream genomic sequences. The DRN and DRNL coding regions are shown within this genomic region (A). Nomarski image of a wild type torpedo embryo (B) or a drn-1 drnl-2 double mutant embryo at the same developmental stage, showing the absence of cotyledons (C). RNA in situ hybridizaion of an STM probe on wild type (D) or drn-1 drnl-2 double mutnat (E) transition stage embryos, showing the misexpression of STM in the mutant background.