Transcriptomics

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Influence of sulfur on transcriptomic variation of genes involved in arsenic metabolism in rice grains


ABSTRACT: We performed Illumina sequencing to acquire the differentially expressed genes induced by arsenate and sulfur treatments. We found that sulfur (S) application reduced As concentration of rice grains harvested at 20 days after anthesis (DAA). By contrast with the control, the expression of 1001 genes were found to be significantly changed, 46 genes up-regulated and 954 genes down-regulated in the 20As grains. 1169 genes expressed significantly differently between the samples of control and 20As+120S, with 16 genes up-regulated and 1153 genes down-regulated. Among the differentially expressed genes (DEGs) regulated by As and S treatment, there were 10 DEGs encoding phosphate transporter, and 24 DEGs encoding aquaporin transporter. Some genes involved in As detoxification, such as ABC transporter, glutathione S-transferase and phytochelatin synthase were up-regulated by sulfur treatment. The results provide an insight into the molecular basis of how sulfur application regulates As accumulation in rice grains. Arsenic (As) was artificially added to soil with 20 mg/kg As (Na2AsO4.12H2O, 20As), another treatment was 20As+120S, sulfur (S) were supplied artificially with 120 mg/kg (Na2S2O3•5H2O) to the As-added soil (20As+120S).

ORGANISM(S): Oryza sativa Indica Group  

SUBMITTER: Quan-Zhi Zhao  Jing Zhang    

PROVIDER: E-GEOD-48799 | ArrayExpress | 2015-07-01

SECONDARY ACCESSION(S): SRP027203GSE48799PRJNA211801

REPOSITORIES: GEO, ArrayExpress, ENA

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