Gene Expression Analysis in Roots of Rice (Oryza Sativa L.) Under Varied Zinc Condition
Journal Title: International Journal of Agricultural Science and Research (IJASR) - Year 2017, Vol 7, Issue 4
Abstract
Zinc (Zn), is an important element essential to both plant and humans which play key role in gene expression, cell development and replication processes. Zinc deficiency is prevalent and widespread in rice consuming countries which causes delayed plant development and decreased crop yield. Many studies have investigated the response of rice plants to Zn deficiency using high and low zinc accumulating geno types at physiological and biochemical level. However, little information is available about mechanisms at molecular level. Therefore, an attempt was made to understand the Zn deficiency in the roots of rice seedlings through transcriptome analysis. The results revealed that a diverse set of deferentially expressed genes (DEGs) with distinct functions were altered under zinc deficient condition as compared to zinc supplemented condition. DEGs were majorly involved in primary metabolism such as carbohydrate, lipid, protein and secondary metabolism. KEGG pathway analysis revealed that majority of DEGs were up regulated and down regulated in biosynthesis of terpenoids and steroids, oxidative phosphorylation, nitrogen metabolism, citrate cycle pathways. The present result reveal that zinc deficiency leads to activation of several genes and gene networks, indicating how plants cope with the micro nutrient deficiency at different developmental stages of rice.
Authors and Affiliations
Hemavathi . , Brijesh A. S, Shashidhar H. E
Keywords
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