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Microarray analysis reveals the molecular foundation of the brown planthopper(BPH) resistance of rice variety Rathu Heenati

ABSTRACT: In order to reveal the molecular foundation of BPH resistance of RH, the whole genome expressional profiles of RH together with the control TN1 under BPH infestation were determined using cDNA microarray analysis.

ORGANISM(S): Oryza sativa

PROVIDER: GSE74106 | GEO | 2016/12/05

SECONDARY ACCESSION(S): PRJNA299020

REPOSITORIES: GEO

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Transcriptome analysis of BPH-resistant and BPH-susceptible rice seedlings in response to BPH infestation

Project description:Transcriptome analysis of BPH-resistant and BPH-susceptible rice seedlings in response to BPH infestation. RH vs. 02428: a microarray analysis of genes that were differentially expressed in a BPH-resistant cultivar, Rathu Heenati (RH) and a susceptible cultivar 02428 after infestation with BPH for 24h. RB vs. SB: a microarray analysis of genes that were differentially expressed in resistant seedling pool and susceptible seedling pool both infested with BPH for 24h. RB vs. RN: a microarray analysis of genes that were differentially expressed in resistant seedling pool infested with BPH for 24h and resistant seedling pool without BPH infestation. Goal was to explore the molecular basis underlying BPH-resistance in rice.

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Expression data from rice after brown planthopper attack

Project description:The aim of this study was to analyze potential brown planthopper (BPH) resistant genes in Rathu Heenati (RHT) by Affymetrix whole rice genome array,BPH susceptible and resistant rice varieties of TN1（Taichung Native 1）as control. All the resistant related genes derived from RHT will be analyzed according to the SSR markers interval flanked on the chromosome 3, 4, 6 and 10. It will be benefit to the gene clone and marker assistant breeding for Bph3 gene in the near future. We used microarrays to detail the global differential gene expression before and after brown planthopper attack in two different varieties, and identified distinct classes of high enriched genes induced by BPH or constituent in RHT The 2nd to 3rd instar nymphs of BPH were transferred to tillering stage seedings (10 BPH nymphs per plant) in a box covered with nylon-mesh. Stems of the rice plant infected by BPH were collected at 0h (T0), 8h (T8), 24h (T24) after BPH attack, total RNA were extracted for the microarray hybirdlization.

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Expression data from brown planthhoper (BPH) infested and non-infested rice

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Expression data from brown planthhoper (BPH) infested and non-infested rice

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Expression data from BPH resistant and susceptible rice varieties

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Project description:Brown planthopper (BPH; Nilaparvata lugens) is a phloem feeding insect which is one of the most serious threats to rice crops in many countries throughout Asia. 1H NMR spectroscopy, combined with chemometrics, was used to analyze the polar metabolome from leaf extracts of Thai Jasmine rice (brown planthopper (BPH)-susceptible KD) and its BPH resistant isogenic lines (BPH-resistant IL7 and BPH-resistant+ IL308 varieties) with and without BPH infestation at various time points (days 1, 2, 3, 4 and 8). Physiological changes of the rice isogenic lines were different based on the quantitative trait loci of BPH resistance. Multivariate models were capable of distinguishing between the susceptible and the resistant rice varieties throughout the infestation. The concentration of 10 metabolites were significantly altered (p < 0.05) between the infested and the control groups of each examined rice variety. Metabolic pathway analysis suggested that BPH infestation could perturb transamination during the early stages of infestation (days 1–3) for all rice varieties. In addition, the IL7 and IL308 varieties responded earlier (day 3) than the KD variety (day 8) by perturbing amino acid metabolism, shikimate and gluconeogenesis pathways. By day 8 of the infestation, the KD cultivar responded by activating the amino acid-mediated-de novo pathway whereas the IL308 variety activated the purine and pyrimidine compound-mediated-salvage pathway for nucleotide biosynthesis. This study has identified, for the first time, several potential metabolic pathways for acclimatization and defense mechanisms against BPH infestation. These findings provide a valuable, first insight into BPH resistance mechanisms in Thai Jasmine rice.

2016-11-25 | MTBLS151 | MetaboLights

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