Figure 4: Ethylene stimulation of rubber production in Hevea.
From: The rubber tree genome reveals new insights into rubber production and species adaptation
a, Expression dynamics of differentially expressed genes (DEGs) within 24 h of ethylene treatment. The expression levels (RPKM) of the 509 DEGs are normalized based on the Z-score method (scale bar). The DEGs are divided into six clades; two (clades I and II) of them are downregulated genes whereas the remainder (clades III to VI) are upregulated. b, A model summarizing the mechanisms of ethylene stimulation of rubber production. The red and green text used for genes and enzymes denotes that their expression/activity is activated and inhibited by ethylene, respectively. The red background of molecules or events indicates that their quantity or strength is boosted by ethylene. Suc, sucrose; Met, methionine; ROS, reactive oxygen species; NIN, neutral invertase; GS, glutamine synthetase.
