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Transcriptome profiling of Botrytis cinerea conidial germination reveals upregulation of infection-related genes during the pre-penetration stage

ABSTRACT: Investigation of whole genome gene expression level changes in Botrytis cinerea wild type conidia during germination in comparison to the bmp1 MAP kinase deletion mutant.

ORGANISM(S): Botrytis cinerea B05.10 Botrytis cinerea T4 Botrytis cinerea

PROVIDER: GSE43569 | GEO | 2013/01/18

SECONDARY ACCESSION(S): PRJNA186742

REPOSITORIES: GEO

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Transcriptome profiling of Botrytis cinerea conidial germination reveals upregulation of infection-related genes during the pre-penetration stage

Project description:Investigation of whole genome gene expression level changes in Botrytis cinerea wild type conidia during germination in comparison to the bmp1 MAP kinase deletion mutant. A 18 chip study using total RNA recovered from four different time points for the wild-type and one time point for the bmp1 deletion mutant. Each time point was analyzed with three biological replicates. Expression level of 20,885 genes from Botrytis cinerea strain B05.10 and T4 with three 60mer probes per gene was analysed.

2013-01-18 | E-GEOD-43569 | biostudies-arrayexpress

LongSAGE transcriptome comparison on Botrytis cinerea conidia germination with and without resveratrol treatment

Project description:Two long serial analysis of gene expression (LongSAGE) libraries of germinating conidia of Botrytis cinerea were generated with and without resveratrol treatments for unraveling the antifungal mechanisms of this phytoalexin by global transcriptome analysis – 82,786 total tags and a minimum of 15,665 unitags were obtained respectively. By tag-to-gene mapping, about 55% of the total unitags were matched to known genes. There were 109 unitags that showed significant differences in the two LongSAGE libraries, corresponding to 43 up- and 44 down-regulated genes, and 22 unmatched unitags as new gene candidates. These results showed that resveratrol inhibited expression of genes related to the glycolysis-Krebs cycle and mitochondrial electron transport chains at multiple sites in conidia germination, with induction of modified Entner–Doudoroff pathway as metabolic compensation. The chaperone-mediated protein folding and ubiquitin proteolysis systems were inhibited, while detoxification of resveratrol via ABC transporters was activated in this fungal pathogen. Keywords: Botrytis cinerea; LongSAGE; metabolic pathway; resveratrol; transcriptome

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Project description:LongSAGE transcriptome comparison on Botrytis cinerea conidia germination with and without resveratrol treatment

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Whole Genome Bisulfite Sequencing of Botrytis cinerea

Project description:Analysis of the genome-wide DNA methylation pattern of Botrytis cinerea. Results provide new and important information that DNA methylation is critical for pathogenicity and development of Botrytis cinerea by regulating gene expression.

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Transcription profiling of tomato fruit responses to Botrytis cinerea

Project description:Tomato fruit ripening is associated with a dramatic increase in susceptibility to the fungal pathogen Botrytis cinerea, the causal agent of gray mold. Mature green fruit, prior to ripening, are largely resistant to B. cinerea, whereas red fruit, at the end of ripening, are susceptible to B. cinerea infection. We used microarrays to detail the gene expression changes that are induced by B. cinerea when tomato fruit at unripe and ripe stages are infected. Experiment Overall Design: Tomato fruit at mature green and red ripe stages were wound inoculated with a water suspension of B. cinerea conidia. Twenty four hours post inoculation fruit pericarp and epicarp tissue around and including the inoculation sites was collected and the total RNA extracted. Total RNA was also collected from healthy and mock inoculated fruit.

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Analysis of the molecular dialogue between Botrytis cinerea and Vitis vinifera reveals a clear shift in defence mechanisms during berry ripening.

Project description:Full transcriptomes of the Botrytis cinerea wild-type strain B0510 inoculated on mature grapevine berries (Marselan cultivar) at 16h, 24h, 48h, and in vitro were compared to identify B. cinerea genes diffentially expressed during the infection stages. Grapevine berries were inoculated with Botrytis cinerea conidia and samples were taken at 16h, 24h and 48 hours post-inoculation. An additional control sample corresponding to mycelium growing on static liquid minimal medium was included in the experimental design in order to identify genes that would be differentially expressed between in vitro and in planta growth conditions. 3-4 replicates were performed. The 13 total-RNA samples were used for hybridization on NimbleGen 4plex gene expression arrays (20,885 gene models from Botrytis cinerea with three 60-mer probes per gene).

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WRKY33-dependent expression of Arabidopsis genes upon Botrytis cinerea 2100 inoculation

Project description:The Arabidopsis thaliana mutant wrky33 is highly susceptible to the necrotrophic fungus Botrytis cinerea. Comparing the expression profiles of B. cinerea-infected wrky33 and WT plants we identified 2765 differentially expressed genes dependent on WRKY33, of which 1675 were up-regulated in the mutant (termed WRKY33-repressed genes) and 1090 were down-regulated in the mutant. Combined with ChIP-seq data 318 genes were identified as direct functional targets of WRKY33 at 14 h post inoculation with spores of Botrytis cinerea 2100.

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