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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Expression data from wheat following Hessian fly larval attack.

ABSTRACT: The Hessian fly (HF, Mayetiola destructor) is a biotrophic insect that interacts with wheat on a typical gene-for-gene basis. Identification of the genes which are differentially expressed during wheat-HF interactions may provide critical information to better understand the plant resistance mechanisms. Microarray analyses of transcripts, including those encoding various lipases, lipid transfer proteins, enzymes involved in oxylipin synthesis, and enzymes involved in wax and cutin synthesis, revealed that the abundance of many of these transcripts increased rapidly in resistant plants after HF attack, but did not change in susceptible plants. We conducted the genome-wide transcriptional analysis of gene expression to identify the genes from wheat plants which were differentially express during compatible and incompatible wheat-Hessian fly interactions at 6, 12, and 24 hrs. Two wheat lines M-bM-^@M-^\MollyM-bM-^@M-^] and M-bM-^@M-^\NewtonM-bM-^@M-^] were used in the experiment. Molly contains R gene H13 and have incompatible interaction with Hessian fly larvae whereas Newton is susceptible and has compatible interaction with Hessian fly larvae. Total RNA was extracted from larval feeding site which is 1.5-2 cm of the second leaf sheath and hybridized on Affymetrix microarrays. Tissues were collected at three time points (6, 12, and 24 hr) after the Hessian fly egg hatching. The data obtained from each treatment were compared with the uninfested control within each wheat line under identical conditions.

ORGANISM(S): Triticum aestivum

SUBMITTER: Chitvan Khajuria

PROVIDER: E-GEOD-34445 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Expression data from wheat following Hessian fly larval attack.

Project description:The Hessian fly (HF, Mayetiola destructor) is a biotrophic insect that interacts with wheat on a typical gene-for-gene basis. Identification of the genes which are differentially expressed during wheat-HF interactions may provide critical information to better understand the plant resistance mechanisms. Microarray analyses of transcripts, including those encoding various lipases, lipid transfer proteins, enzymes involved in oxylipin synthesis, and enzymes involved in wax and cutin synthesis, revealed that the abundance of many of these transcripts increased rapidly in resistant plants after HF attack, but did not change in susceptible plants. We conducted the genome-wide transcriptional analysis of gene expression to identify the genes from wheat plants which were differentially express during compatible and incompatible wheat-Hessian fly interactions at 6, 12, and 24 hrs.

2012-10-01 | GSE34445 | GEO

Host plant genotypes affect miRNA gene expression in Hessian fly larvae

Project description:MicroRNAs (miRNAs) are small noncoding RNAs that play critical roles in regulating post transcriptional gene expression. Gall midges encompass a large group of insects that are of economic importance and also possess fascinating biological traits. The gall midge Mayetiola destructor, commonly known as the Hessian fly, is a model organism for studying gall midge biology and insect M-bM-^@M-^S host plant interactions. In this study, we systematically analyzed miRNAs from the Hessian fly. Deep-sequencing a Hessian fly larval transcriptome led to the identification of 89 miRNA species that are either identical or very similar to known miRNAs from other insects, and 184 novel miRNAs that have not been reported from other species. Microarray analyses revealed the expression of miRNA genes was strictly regulated during Hessian fly larval development and abundance of many miRNA genes were affected by host genotypes. The identification of a large number of miRNAs for the first time from a gall midge provides a foundation for further studies of miRNA functions in gall midge biology and behavior. Two wheat lines M-bM-^@M-^\MollyM-bM-^@M-^] and M-bM-^@M-^\NewtonM-bM-^@M-^] were used in the experiment. Newton is a susceptible winter wheat that contains no Hessian fly R gene, and Molly is a nearly isogenic line of Newton, but contains the R gene H13. Larvae were collected one and three days after egg hatch from susceptible Newton and resistant Molly plants. Total RNA extracted from the collected larvae was used for microarray analysis. Three biological replications were used for each treatment and at each time point.

2013-10-01 | E-GEOD-43680 | biostudies-arrayexpress

Transcription profiling by array of wheat cultivars Flame and Longbow responce to Mycosphaerella graminicola

Project description:Mycosphaerella graminicola is the causal agent of Mycosphaerella graminicola infection (STB) disease of wheat. Wheat genotypes vary in their response to this disease. Cultivar (cv.) Longbow is susceptible and cv. Flame is resistant to STB disease, with cv. Flame possessing the STB resistance locus Stb6 that confers resistance to pathogen strain IPO323. Gene expression profiling (conducted using Affymetrix wheat gene chip) identified transcripts that accumulate in leaves of both these wheat cultivars as an early response to M. graminicola strain IPO323 (at 24h post-treatment). At this initial time point, microscopic analysis verified that fungal spores had germinated, but not penetrated the leaves of both genotypes. Results showed that basal defence genes were activated in both the compatible and incompatible interactions. A subset of genes were identified that were more pathogen-responsive in the cv. Flame v. IPO323 incompatible interaction as compared to the cv. Longbow v. IPO323 compatible interaction, including defence genes such as peroxidases, beta-1,3-glucanase, annexin, chitinases, brassinosteroid-associated kinase 1 and a jasmonate-inducible protein.

2014-06-04 | E-MEXP-3584 | biostudies-arrayexpress

Expression data from plant tissues during incompatible interaction between the rice host and its major pest, the Asian rice gall midge

Project description:During an incompatible or compatible interaction between rice (Oryza sativa) and the Asian rice gall midge (Orseolia oryzae), a lot of genetic reprogamming occurs in the plant host We used microarray to know the changes occuring in the resistant host (indica rice variety RP2068-18-3-5) when challenged by avirulent biotype of gall midge (GMB 1). During this incompatible interaction the resistance in the host is manifested by a hypersenstive response. Using microarray data, we identified distinct classes of up- and down-regulated genes during this process. Tissues from the stem region (feeding site of insect larvae) of the plants that were exposed to gall midge, were taken for RNA extraction and hybridization on Affymetric microarrays. For control, tissues were taken from the corresponding region of plants that were not exposed to gall midge.

2016-02-23 | E-GEOD-70526 | biostudies-arrayexpress

Expression in dissected larval tissues including gut, salivary glands, Malpighian tubules, and the remaining cascade

Project description:Genes expressed in the salivary glands and gut of Hessian fly (Mayetiola destructor) larvae are likely involved in interactions with host plants. Hessian fly larval tissues were derived from three day old larvae that were cultured on susceptible cultivar Newton. Each tissue sample contained 200 individuals dissected from the same stage of insects. The same type of dissected tissues were pooled and total RNA was extracted from development of microarray probes.

2010-06-21 | E-GEOD-18412 | biostudies-arrayexpress

Expression in larvae fed on resistant or susceptible plants, and in larvae that are at different developmental stages

Project description:Genes expressed in the salivary glands and gut of Hessian fly (Mayetiola destructor) larvae are likely involved in interactions with host plants. RNA samples were extracted from whole larvae. The microarray was used to determine the abundance of transcripts in larvae at different developmental stage or larvae that feed on resistant and susceptible host plants.

2010-06-21 | E-GEOD-18413 | biostudies-arrayexpress

Transcription profiling of wheat Lr1- and Lr34-mediated leaf rust resistance in wheat

Project description:The wheat gene Lr34 confers partial resistance to all races of Puccinia triticina, the causal agent of wheat leaf rust. However, the biological basis for the exceptional durability of Lr34 is unclear. The Affymetrix wheat genome array was used to identify wheat genes differentially expressed in a compatible interaction (Tc), an R-gene mediated incompatible interaction (Tc-Lr1), and a race non-specific resistance interaction (Tc-Lr34) in response to infection challenge by P. triticina race 1 at anthesis. Transcriptome interrogation was conducted by comparing mock- and P. triticina-inoculated leaves harvested at 3 and 7 days post inoculation (dpi). SUBMITTER_CITATION: Bolton, M.D., Kolmer, J.A., Xu, W.W., and Garvin, D.F. 2008. Lr34-mediated leaf rust resistance in wheat: transcript profiling reveals a high energetic demand supported by transient recruitment of multiple metabolic pathways. Molecular Plant-Microbe Interactions 21:1515-1527. Experiment Overall Design: The Affymetrix wheat genome array was used to identify wheat genes differentially expressed in a compatible interaction (Tc), an R-gene mediated incompatible interaction (Tc-Lr1), and a race non-specific resistance interaction (Tc-Lr34) in response to infection challenge by P. triticina race 1 at anthesis. Transcriptome interrogation was conducted on leaves harvested at 3 and 7 days post inoculation (dpi). The study utilized a randomized complete block design with three replicates for each genotype, and employed univariate analysis (t-tests) between mock- and P. triticina-inoculated plants within each genotype at each timepoint, for a total of six comparisons across the entire experiment, utilizing a total 36 Affymetrix Wheat Genome Array GeneChips.

2008-11-13 | E-GEOD-9915 | biostudies-arrayexpress

Transcription analysis by RNAseq of adult wheat after inoculation with Puccinia graminis f. sp. tritici

Project description:The RNA sequencing analysis was undertaken to investigate the transcriptomic changes in adult wheat inoculated with Puccinia graminis f. sp. tritici the causal agent of stem rust disease. The project firstly aims to compare gene expression in one susceptible wheat line with two wheat lines exhibiting adult plant resistance to the stem rust. Secondly, the project aims to examine the temporal changes in gene expression in wheat after inoculation. Wheat plants was grown until maturity under greenhouse conditions. Plants were inoculated with Puccinia graminis f. sp. tritici and the flag leaf sheath sampled for RNA sequencing. The project aims to give essential insight into the adult plant resistance response in wheat to Puccinia graminis f. sp. tritici inoculation.

2022-10-30 | E-MTAB-9681 | biostudies-arrayexpress

Transcript profiling of Lr1- and Lr34-mediated leaf rust resistance in wheat

2008-11-01 | GSE9915 | GEO

Expression data from wheat cultivar TAM 107 flag leaf

Project description:We used microarray to study the transcriptome response of wheat flag leaves to heat stress (40℃) In order to study the transcriptome response of wheat flag leaf to heat stress, wheat cultivar ‘TAM 107’ plants were subjected to heat stress (40℃). After 1 hour of stress, flag leaves were sampled from both stressed and control plants and were used for microarray analysis.

2015-08-13 | E-GEOD-60351 | biostudies-arrayexpress

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