Figure 9.

Distribution of cis-elements in the promoter regions of HbMPK genes. The HbMPKs were separated into four groups according to phylogenetic subfamily (groups A–D). The numerals in two parallel columns represent the cluster in the HbMPKs expression profiles in Figure 8. Coloured capital letters represent different cis-elements at corresponding positions. Red, green, purple, and blue letters represent the transcription initiation, phytohormone response, stress response, and high transcription classifications of cis-elements, respectively. Detailed information for each cis-element provided (Supplementary Table S2).