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Expression data in wheat (T. aestivum L.) near isogenic lines in response to powdery mildew infection

ABSTRACT: We used two wheat genotypes, the susceptible wheat cultivar ‘8866 ’(S) and its near isogenic line with single powdery mildew resistance gene ‘pm30’ (R), to investigate gene expression changes in response to powdery mildew infection by using Wheat Genome Array

ORGANISM(S): Triticum aestivum

PROVIDER: GSE27320 | GEO | 2011/02/15

SECONDARY ACCESSION(S): PRJNA141815

REPOSITORIES: GEO

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Expression data in wheat (T. aestivum L.) near isogenic lines in response to powdery mildew infection

Project description:We used two wheat genotypes, the susceptible wheat cultivar ‘8866 ’(S) and its near isogenic line with single powdery mildew resistance gene ‘pm30’ (R), to investigate gene expression changes in response to powdery mildew infection by using Wheat Genome Array wheat young leveas of near isogenic lines before or 12 hours after powdery mildew infection were selected for RNA extraction and hybridization on Affymetrix microarrays.The leaf samples were harvested from three independent biological replicates, and the leaves without inoculation were regarded as control.

2011-02-15 | E-GEOD-27320 | biostudies-arrayexpress

Genome-wide sequencing small RNAs in response to powdery mildew and heat stress in wheat

Project description:To test whether non-coding RNAs play roles in regulating response to powdery mildew infection and heat stress in wheat, by using Solexa high-throughput sequencing and computational analysis and experimental approach we cloned the small RNAs and identified 125 putative long npcRNAs from wheat leaves infected by preponderant physiological strain Erysiphe graminis f. sp. tritici (Egt) or by heat stress treatment. Among long non-coding RNAs, some were precursors of small RNAs such as microRNAs and siRNAs, two long npcRNAs were identified as signal recognition particle (SRP) 7S RNA variants, and three were characterized as U3 snoRNAs. Wheat long npcRNAs showed tissue dependent expression patterns and were responsive to powdery mildew infection and heat stress.

2011-02-15 | GSE27327 | GEO

Genome-wide sequencing small RNAs in response to powdery mildew and heat stress in wheat

2011-02-15 | E-GEOD-27327 | biostudies-arrayexpress

Identification of candidate genes for nonhost resistance to powdery mildew in wheat

Project description:To identify the nonhost resistance genes, a time-series based global expression profiling was performed in wheat using Agilent gene expression 44K microarray array. Seven-day-old wheat plants of cv. Renan was inoculated with spore density of 50-80 conidia mm-2 of adapted (Bgt) or non-adapted (Bgh) powdery mildew pathogen, and the abaxial epidermis of inoculated primary leaves or from non-inoculated control leaves was peeled at 6, 12, 24 and 74 h after inoculation. Total RNA was extracted by using the RNeasy plant mini kit with on-Column DNase digestion (Qiagen, Hilden, Germany), and hybridized to a 44K Agilent oligonucleotide custom array of wheat.

2016-06-30 | E-MTAB-3803 | biostudies-arrayexpress

Transcriptomic comparison between the powdery mildew resistant and susceptible progenies of distant hybridization between Brassica carinata and Brassica napus

Project description:Powdery mildew caused by Erysiphe cruciferarum, is an epidemic of oil rapeseed (Brassica napus) growing worldwide, but resistant germplasm is rare in this species. We obtained the hybrid seeds of distant hybridization between powdery-mildew-immune Brassica carinata cultivar ‘White flower’ and susceptible B. napus cultivar ‘Zhongshuang11’. Five lines in the BC1F3 generation (F3 after backcross to 'Zhongshuang11') were identified to be resistant or moderately resistant. In order to identify the important biological responses to powdery mildew, the foliar transcriptomes of the resistant and susceptible plants in these progenies after powdery mildew inoculation were compared by using Illumina RNA-seq. We identified 10,454 differential expression genes (DEGs) and 1050 genes out of them are related to disease resistance. There were 271 DEGs in Group Resistance expressed at least two fold higher than in group S, while 779 DGEs expressed two fold lower. The genes highly expressed in Group Resistance are those encoding the proteins: (1) related to wax, chloroplast and cell wall metabolism, such as KCS6, CSP41B, RWA, callose synthetase 3, pectinase 9, fructosidase 2, 9s-lipoxygenase LOX2, etc.; (2) kinases including RKL, ERECTA, BAK1, BAM2, LysM receptor like kinase, and lipid transfer protein kinase ERl1 and ERl2; (3) broad spectrum powdery mildew resistance proteins RPW8, calmodulin MLO2, PMR5, MLP328, EDR2, RPS4 and RPS6, etc. In group susceptible, pectinesterase, cytochrome CYP81f2, LOX1, cysteine rich receptor protein kinases and serine / threonine protein kinases such as MEKK, RLK6, CRK45, APK1, BRl3, WAK1, WAK10, etc., and TIR-NB-LRR receptor like proteins R1M1, DSC1, DSC2 and pathogenesis-related protein PR-1 etc. were the most activated genes. The results provide the preliminarily knowledge about molecular mechanism in rapeseed defense response to powdery mildew.

2021-11-11 | GSE188377 | GEO

Dudler-Effect of syringolin treatment on powdery mildew infected Arabidopsis

Project description:Powdery mildew, caused by the fungus Blumeria graminis (DC) Speer, is one of the most important foliar diseases of cereals worldwide. It is an obligate biotrophic parasite, colonising leaf epidermal cells to obtain nutrients from the plant cells without killing them. Syringolin A (sylA), a circular peptide secreted by the phytopathogenic bacterium Pseudomonas syringae pv. syringae, triggers a hypersensitive cell death reaction (HR) at infection sites when sprayed onto powdery mildew infected wheat which essentially eradicates the fungus. The rational was to identify genes whose expression was specifically regulated during HR, i.e. genes that might be involved in the switch of compatibility to incompatibility.<br>Powdery mildew-infected or uninfected plants were treated with syringolin two days after infection and plant material for RNA extraction was collected at 0.5, 1, 2, 4, 8, 12 hours after treatment (hat), resulting in an early (2 and 4 hat) and late pool (8 and 12 hat). Plant material that was uninfected prior to syringolin treatment was collected 8 and 12 hat (late pool of uninfected plant material), and 1 hat, respectively.

2006-06-30 | E-MEXP-739 | biostudies-arrayexpress

Expression data from wheat cultivars

Project description:To identify genes involved in susceptibility, genechip hybridization experiments were performed in order to examine genes differentially expressed upon inoculation of resistant and susceptible wheat cultivars with powdery mildew. Some genes were identified which were just expressed in the susceptible host both after mock-inoculation and pathogen infection. Also, a total of 2693 transcripts were differentially expressed (fold change≥2) in Yumai 13 in response to powdery mildew as compared to itself, comprising 1464 and 1229 up- and down-regulated genes respectively. Seven-day-old wheat seedlings of susceptible cultivar Yumai 13, two resistant cultivars HY and CYC were inoculated with powdery mildew and harvested at 0, 24, 48 hpi for RNA extraction and hybridization on Affymetrix microarrays. We sought to screen some genes which have very high expression in Yumai 13, but not in CYC and HY by pairwise comparation.

2014-01-30 | E-GEOD-43930 | biostudies-arrayexpress

Wheat response to powdery mildew infection and heat stress

Project description:Wheat response to powdery mildew infection and heat stress

| PRJNA137299 | ENA

Role of AtMLKLs in response to powdery mildew fungus

Project description:We performed RNA-sequencing of Golovinomyces orontii-infected Arabidopsis leaves of wild type, the double or triple mutants of AtMLKLs to examine the role of AtMLKLs in response to the powdery mildew fungus.

2019-03-29 | GSE129011 | GEO

Triticum aestivum strain:Blumeria graminis f. sp. tritici | isolate:powdery mildew resistant wheat | breed:wheat | cultivar:Brock

Project description:Triticum aestivum strain:Blumeria graminis f. sp. tritici | isolate:powdery mildew resistant wheat | breed:wheat | cultivar:Brock Raw sequence reads

| PRJNA480377 | ENA

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