Fig. 3.

Spatial expression patterns of oil palm MADS box genes in staminate and pistillate flowers: schematic representation of in situ hybridization results. Two different developmental stages are depicted: firstly, the developing androecium and gynoecium stage (Stage 3); and secondly, the stage where gynoecium and androecium have reached full size but not maturity (Stage 4). Observations with mantled pistillate flowers are shown for Stage 4 only. Floral zones in which an in situ hybridization signal was observed are shown in colour, depending on the gene involved (yellow for EgSQUA1, blue for the B class genes EgDEF1 and EgGLO2, red for EgAG2 and green for EgAGL2-1).