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Transcriptome analysis of bacterial blight susceptible and resistant rice lines

ABSTRACT: Transcriptome analysis of bacterial blight susceptible and resistant rice lines

PROVIDER: PRJNA1241236 | ENA |

REPOSITORIES: ENA

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Transcriptome analysis of bacterial blight susceptible and resistant rice lines

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Project description:We carried out an RNA-seq based transcriptome study on two rice varieties, Cocodrie (CCDR; rice sheath blight susceptible) and MCR10277 (MCR; rice sheath blight resistant), to profile the time-series wide genome-scale transcriptional differences in response to sheath blight (SB), an infection caused by R. solanii (LR172) . Our approach is cross-referencing differentially expressed genes with significant variants of two phenotypically different varieties to validate known and discover novel variants and to further understand rice's physiological response to SB.

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Transcriptional profiling of indica rice cultivar IET8585 (Ajaya) infected with bacterial leaf blight pathogen (Xoo)

2007-10-29 | GSE6244 | GEO

Transcription profiling of indica rice cultivar IET8585 (Ajaya) infected with bacterial leaf blight pathogen (Xoo)

Project description:An indica rice cultivar IET8585 (Ajaya), resists diverse races of the Xanthomonas oryzae pv oryzae (Xoo) pathogen attack, and is often cultivated as bacterial leaf blight (blb) resistant check in India. Earlier we reported a recessive blb resistance gene mapped to the long arm of chromosome 5 in IET8585. To further understand the mechanism of recessive and durable resistance response, two indica rice genotypes namely, i) IET8585 (Ajaya), a disease resistant indica veriety from India and ii) IR24, a bacterial leaf blight disease susceptible genotype were selected for this study. We used the 22K rice Oligoarray from Agilent technologies to study the transcript profile in the leaves of the two contrasting rice genotypes under inoculated and un-inoculated conditions during seedling stage. Experiment Overall Design: We used Agilent rice gene chips (G4138A) to investigate the transcript level changes in rice leaf tissues during bacterial pathogen infection. We used two contrasting rice genotypes (IET8585 (Ajaya) blb resistant IR24 blb susceptible) differing in bacterial disease response. Plants were grown growth chambers and inoculated with bacterial pathogen on 18th DAS. Leaf sampling was done in both un-inoculated and inoculated plants at 3 time points. Two replications of microarray experiments were carried out by hybridizing the resistant samples against the susceptible samples.

2008-06-14 | E-GEOD-6244 | biostudies-arrayexpress

IDENTIFICATION OF NOVEL RESISTANCE SOURCES AND COMPARATIVE PROTEOMIC ANALYSIS IN RICE- SHEATH BLIGHT (Rhizoctonia solani Kuhn) DISEASE INTERACTION

Project description:In this project, resistant lines were identified by phenotypic screening of 119 landraces against sheath blight of rice pathogen. Later the resistant line was compared with susceptible check BPT-5204 using MS analysis

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Transcriptomic comparative analysis of different resistance to sheath blight in rice chromosome segment substitution lines

Project description:Purpose:The goals of this study are to compare NGS-derived transcriptome profiling (RNA-seq) of different resistance to sheath blight in rice chromosome segment substitution lines

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Comparative Proteome Profiling of Susceptible anComparative Proteome Profiling of Susceptible and Resistant Rice Cultivars Identified an Arginase Involved in Rice Defense Against Xanthomonas oryzae pv. oryzae d Resistant Rice Cultivars Identified an Arginase Involved in Rice Defense Against Xanthomonas oryzae pv. oryzae

Project description:Xanthomonas oryzae pv. oryzae (Xoo), the causative agent of bacterial blight disease, is one of the major threats to rice productivity. Yet, the molecular mechanism of rice-Xoo interaction is elusive. Here, we report comparative proteome profiles of Xoo susceptible (Dongjin) and resistant (Hwayeong) cultivars of rice in response to two-time points (3 and 6 days) of Xoo infection. Low-abundance proteins were enriched using a protamine sulfate (PS) precipitation method and isolated proteins were quantified by a label-free quantitative analysis, leading to the identification of 3846 protein groups. Of these, 1128 proteins were significantly changed between mock and Xoo infected plants of Dongjin and Hwayeong cultivars. Based on the abundance pattern and functions of the identified proteins, a total of 23 candidate proteins were shortlisted that potentially participate in plant defense against Xoo in the resistant cultivar. Of these candidate proteins, a mitochondrial arginase-1 showed Hwayeong specific abundance and was significantly accumulated following Xoo inoculation. Overexpression of arginase-1 in susceptible rice cultivar (Dongjin) resulted in enhanced tolerance against Xoo as compared to the wild-type (WT). In addition, expression analysis of defense-related genes encoding PR1, glucanase I, and chitinase II by qRT-PCR showed their enhanced expression in the overexpression lines as compared to WT. Mitochondrial localization of the selected arginase was further confirmed by fluorescent microscopy using GFP-tagged arginase. Taken together, our results uncover the proteome changes in the rice cultivars and highlight the functions of arginase in plant defense against Xoo.

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Comparative gene expression analysis between virus-susceptible and -resistant rice lines (TW16-4 and -69)

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2007-10-25 | GSE6124 | GEO

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