Fig. 9

Heat map of DEGs during low-temperature stress in the potato. The color represents gene expression values (the red corresponds to genes with high expression and the blue corresponds to gene with low expression). S20, S2 and S-2 correspond to the libraries obtained in the temperature 20 °C, 2 °C and -2 °C respectively. A up-regulation at 20 °C but down-regulation at other 2 temperatures; B: down-regulation at 20 °C but up-regulation at other 2 temperatures; C: up-regulation at 2 °C but down-regulation at other 2 temperatures; D: down-regulation at 2 °C but up-regulation at other 2 temperatures; E: up-regulation at 2 °C but down-regulation at other 2 temperatures; F: up-regulation at -2 °C but down-regulation at other 2 temperatures