Microarray analysis of transcriptional changes in MeJA-treated tobacco leaves

Using this microarray data, we identified 19898 probes (717 upregulated and 1512 downregulated in the mock- and MeJA-treated leaf samples at ‘1wk’ and ‘2wk’ stages; 17669 with differential expression in these samples), compared with the mock-treated sample at ‘0wk’ stage. This work aims to identify the genes related to MeJA-induced senescence of tobacco whole-plant, and found several genes differentially expressed between the mock- and MeJA-treated samples at the same stage. Differential expression analysis between mock- and MeJA-treated tobacco leaves under normal light condition, sample mixture of 3 different replicates was used for each treatment.