Figure 5.

Differential metabolites detected between germinated buds and unterminated seeds of the thermal-tolerant lettuce cultivar. The heatmap indicates the differential metabolites between buds of S15k0106 germinated at 35 °C (HY106) and seeds of S15k0106 that did not germinate at 35 °C (H106). A red box means that most of the metabolites in this class had higher relative abundances in treatment compared to those in another, while a blue box represents that relative abundances of most of the metabolites in this class were lower in treatment than those in another; a gray box denotes no significance between H106 and HY106.