Project description:Rice gall dwarf virus (RGDV) is the causal agent of rice gall dwarf disease which causes severe loss of rice yield in Asia countries. In this study, we have analyzed the relationship between symptom and host gene responses by RGDV infection.
Project description:Rice black streak dwarf virus (RBSDV) is the causal agent of rice black streak dwarf disease which causes severe loss of rice yield in Asia countries. In this study, we have analyzed the relationship between symptom and host gene responses by RBSDV infection.
Project description:Rice gall dwarf virus (RGDV) is the causal agent of rice gall dwarf disease which causes severe loss of rice yield in Asia countries. In this study, we have analyzed the relationship between symptom and host gene responses by RGDV infection. Comparison between RGDV and mock infected rice. Biological replicates: 3 control, 3 infected, independently grown and harvested. 1 samples derived from 5 plants grown under same conditons
Project description:Rice black streak dwarf virus (RBSDV) is the causal agent of rice black streak dwarf disease which causes severe loss of rice yield in Asia countries. In this study, we have analyzed the relationship between symptom and host gene responses by RBSDV infection. Comparison between RBSDV and mock infected rice. Biological replicates: 3 control, 3 infected, independently grown and harvested. 1 samples derived from 5 plants grown under same conditons
Project description:We investigated changes in gene expression in rice plants exposed to RDV to gain some insight into the fundamental physiological and biochemical changes that are induced by viral infection, in the hope of finding clues that might help to control the viral disease. An analysis, using microarrays, of gene expression in rice plants infected with Rice dwarf virus revealed significant decreases in levels of expression of genes that are involved in the formation of cell walls, reflecting the stunted growth of diseased plants. The expression of plastid-related genes was also suppressed, as anticipated from the white chlorotic appearance of infected leaves. By contrast, the expression of defense- and stress-related genes was enhanced after viral infection. Keywords: disease state analysis
Project description:We investigated changes in gene expression in rice plants exposed to RDV to gain some insight into the fundamental physiological and biochemical changes that are induced by viral infection, in the hope of finding clues that might help to control the viral disease. An analysis, using microarrays, of gene expression in rice plants infected with Rice dwarf virus revealed significant decreases in levels of expression of genes that are involved in the formation of cell walls, reflecting the stunted growth of diseased plants. The expression of plastid-related genes was also suppressed, as anticipated from the white chlorotic appearance of infected leaves. By contrast, the expression of defense- and stress-related genes was enhanced after viral infection. Experiment Overall Design: To reduce experimental variations, three sets of ten seedlings were harvested from RDV-infected and mock-inoculated plants 9 dpi. Then we pooled leaves from multiple plants as the source of RNA, and employed three sets of microarrays (GSM119715, GSM119718 and GSM119719) using RNAs from different sources and one set of dye-swapping microarrays (GSM119715 and GSM119717).
Project description:To better understand the response mechanism of rice plants to Rice black-streaked dwarf virus (RBSDV) infection, we performed a comparative transcriptome analysis between the RBSDV-infected and non-infected rice plants. A total of 1342 mRNAs and 22 lncRNAs were identified to be differentially expressed after RBSDV infection. Most differentially expressed transcripts involved in the plant-pathogen interaction pathway were upregulated after RBSDV infection, indicating the activation of rice defense response by RBSDV. A network of differentially expressed lncRNAs (DElncRNAs) and mRNAs (DEmRNAs) was then constructed. In this network, there are 56 plant-pathogen interaction-related DEmRNAs co-expressing with 20 DElncRNAs, suggesting these DElncRNAs and DEmRNAs may play essential roles in rice innate immunity against RBSDV.
Project description:MicroRNAs (miRNAs) are endogenous small noncoding RNAs (18–25 nt) that are involved in many physiological processes including development, cancer, immunity, apoptosis and host-microbe interactions through posttranscriptional regulation of gene expression. In this study, we measured the profile of small RNAs in the midgut of Laodelphax striatellus after rice black-streaked dwarf virus (RBSDV) infection. We identified 19 insect miRNAs that were differentially expressed compared with the RBSDV-free (VF) control. Among them, seven were upregulated and 12 downregulated in the RB midgut. Four miRNAs exhibited high expression levels (>500 reads) in either the VF or RBSDV-infected (RB) midgut; among them, three were up-regulated. This study identified critical miRNAs involved in the RBSDV infection in the midgut of L. striatellus.