Figure 5

The predicted pathways of GA biosynthesis and metabolism in watermelon. The pathways were constructed according to the previous reports of GA biosynthetic and metabolic pathways in higher plants. Two major pathways, GA53-pathway and GA12-pathway were present in watermelon. The levels of GA3 and GA29 in GA53-pathway were increased in dwarf plants and marked with red color. The level of GA9 in GA12-pathway was increased and marked with red color, and level of GA4 in GA12-pathway was decreased in dwarf plants and marked with green color.