Fig. 10

A simplified model showing ethylene–dependent and low temperature–modulated ripening pathways in kiwifruit. In ethylene–dependent ripening pathway, ethylene exclusively regulates the expression of specific genes (orange) as well as common genes (green). The expression of these ethylene–induced genes can be suppressed by 1–MCP application. Equally, low temperature regulates the expression of specific genes (blue) as well as common genes (green). Induction of these genes by low temperature is not suppressed by 1–MCP application, implying that they are independent of ethylene. Ripening–related gene classes are represented as rectangle (ethylene biosynthesis–related genes), oval (cell wall modification–related genes), wavy (carbohydrate metabolism–related genes), diamond (flavor–related genes), and pentagon (Gibberellin–2–oxidase genes)