Transcriptomes of Wild Type tomato and sllbd40 fruit on different fruit stages
Ontology highlight
ABSTRACT:
ORGANISM(S): Solanum lycopersicum
PROVIDER: GSE212657 | GEO | 2025/09/01
REPOSITORIES: GEO
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Project description:In order to find the gene which were regulated by SlLBD40, the fruits of WT and SlLBD40-KO-5 line were collected at 25 DDA to do the RNA-Seq. Total RNA was extracted from above tomato fruits by TRIzol reagent and three biological replicates were taken. The clean data were aligned to the tomato reference genome release SL2.50. According to the RNA-Seq data, many development-related genes were down-regulated in SlLBD40-KO-5 fruit. We find the potential SlLBD40-regulated genes.
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Project description:To investigate global genome expression changes caused by the ectopic expression of CsMYBF1, we compared the gene expression profiles of the transgenic and wild type tomato fruits by RNA-seq analysis.Fruit samples from at least five plants of each genotype, which were harvested between 7 and 10 days after breaker stage, were pooled for total RNA isolation.A total of 3296 genes were differentially expressed between the transgenic and wild type fruits, and most of them were significantly induced, indicating the widespread influence on the expression of the endogenous tomato genes.
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Project description:Mature green fruits of the tomato (Solanum lycopersicum L.) cultivar MicroTom were investigated (fruit developmental category II). After harvest, fruits were immediately utilized or stored in darkness at 25 C until further processing. After 0, 1, 2 or 4 days of storage stem scar tissues of tomato fruits were excised with a scalpel to a depth of approximately 2 mm, immediately frozen in liquid nitrogen and stored at -80 C until use.
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Project description:Colletotrichum coccodes secretes ammonium during germination and colonization of host tissue as a mechanism for dual activation of fungal pathogenicity factors and plant cell death via activation of host NADPH oxidase. Ammonium accumulation during colonization of tomato fruits by C. coccodes induced host nucleus integrity changes and program cell death (PCD). Transcriptome analysis at the leading edge of colonized tissue and ammonium treated tomato fruits revealed 82 and 237 common up-regulated and common down-regulated genes, respectively. The common-up-regulated genes showed over representation of pathogen related (PR) proteins, salicylic acid (SA) dependent and systemic acquired resistance (SAR) related genes and genes related to biotic stress. The down regulated genes showed over representation of Jasmonic acid (JA) dependent genes. Consistent with this observation the direct application of SA enhanced C. coccodes colonization, whereas the application of JA delayed colonization. Candidate genes were selected for QRT-PCR analysis of transcripts in normal and transgenic RBOH antisense plants and showed dependence on RBOH regulation. In all, the results suggest that ammonia accumulation during C. coccodes colonization activates SA and suppress JA pathways through activation of RBOH. The effects of ammonium on the expression of the selected up-and down regulated genes were examined in fruit of different maturation stages. Red, susceptible and green resistant, tomato fruit displayed similar behavior, suggesting that resistance of green fruits to C. coccodes colonization is not modulated by the JA and SA pathways but depends on other factors Ten micrograms of total RNA was processed for the microarray hybridizations using the Affymetrix GeneChip one-cycle target-labeling kit (Affymetrix). The four treatments were: C. coccodes "mat inoculation" compared to a wound control (24 hours after the tomato fruit peel was removed). 5 mM Ammonium treatment in PBS compared to PBS treatments as a control for ammonium treatment, the treatments applied every four hours. Each treatment had a duplicate. The biotinylated complementary RNA was fragmented and hybridized to the GeneChip Tomato Genome Array (10,038 tomato probe sets for more than 9,200 tomato genes). The arrays were washed, stained, and scanned at the biological services (Weizmann institute of science, Rehovot, Israel). CEL files for the Affymetrix microarray data arising from the microarray experiments were analyzed utilizing the Partek genomics software (Downey, 2006).
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