Abstract：NAC transcription factors play an important role in plant growth development and resistance to stress. In our previous studies, the Slnac2gene was cloned from Suaeda liaotungensis and transformed into Arabidopsis. SlNAC2 enhanced the salt tolerance of transgenic Arabidopsis. In this study, we screened the differentially expressed genes in transgenic Slnac2 Arabidopsis compared to the wild type by cDNA microarray. There are 1 258 genes which expressed more than twofold in transgenic Arabidopsis. The results of GO enrichment analysis showed that the molecular functionrelated genes accounted for 34.06%, the cellrelated genes accounted for 33.13%, and the biological processrelated genes accounted for 32.81%. KEGG（Kyoto Encyclopedia of Genes and Genomes pathways enrichment）analysis showed that 1 258 genes were involved in 63 different signaling pathways including plant hormone signal transduction, ribosome plantpathogen interaction, ascorbate and aldarate metabolism, etc. Some differential genes were verified by realtime PCR, and the results were consistent with those of the gene chip. In summary, SlNAC2 can regulate the expression of numerous downstream genes and improve plant viability under stress.
