Differential expression profiles and pathways of genes in sugarcane leaf at elongation stage in response to drought stress

• DOI: 10.1038/srep25698
• Publication Date: 2016-05-12T09:41:25Z
• Authors: Changning Li; Qian Nong; Manoj Kumar Solanki; Qiang Liang; Jinlan Xie; Xiaoyan Liu; Yijie Li; Weizan Wang; Litao Yang; Yangrui Li
• Keywords: Drought Tolerance

Water stress causes considerable yield losses in sugarcane. To investigate differentially expressed genes under water stress, a pot experiment was performed with the sugarcane variety GT21 at three water-deficit levels (mild, moderate, and severe) during elongation stage gene expression analyzed using microarray technology. Physiological parameters of showed significant alterations response to drought stress. Based on profile 15,593 genes, 1,501 (9.6%) were different water-level treatments; 821 upregulated 680 downregulated. A similarity analysis that approximately 62.6% shared homology functional proteins. In Gene Ontology (GO) analysis, 901 assigned 36 GO categories. Moreover, 325 classified into 101 pathway categories involved various processes, such as biosynthesis secondary metabolites, ribosomes, carbon metabolism, etc. addition, some unannotated detected; these may provide basis for studies tolerance. The reliability observed patterns confirmed by RT-PCR. results this study help identify useful improving tolerance