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E-MTAB-7545

ABSTRACT: The tomato MYB21 acts in ovules to mediate jasmonate-regulated fertility (RNASeq)

PROVIDER: E-MTAB-7545 | ExpressionAtlas | 2019-04-05

REPOSITORIES: ExpressionAtlas

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			Action	DRS
	E-MTAB-7545-analysis-methods.tsv	Tabular
	E-MTAB-7545-analytics.tsv	Tabular
	E-MTAB-7545-atlasExperimentSummary.Rdata	Rdata
	E-MTAB-7545-configuration.xml	Xml
	E-MTAB-7545-g3_g1-mvaPlot.png	Other

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The tomato MYB21 acts in ovules to mediate jasmonate-regulated fertility (RNASeq)

Project description:The tomato MYB21 acts in ovules to mediate jasmonate-regulated fertility (RNASeq)

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Rhizogenic Agrobacterium protein RolB interacts with the TOPLESS and NINJA repressor proteins to reprogram plant jasmonate signaling (GUS overexpression)

Project description:RNA sequencing was performed on tomato hairy root lines transformed with a GUS overexpression construct, 24 h after mock and jasmonate (JA) treatment. This set-up allowed us to map the gene targets of JA in tomato hairy roots after 24h.

2022-07-08 | E-MTAB-11876 | biostudies-arrayexpress

Transcriptomic analysis of MeJA-induced plant defense responses in young MM and BC5S2 plants

Project description:In this study, the transcriptome of the introgression tomato breeding line BC5S2 and its parental line, Moneymaker (MM) were comparatively analyzed to identify candidate genes related to the differential induction effect of methyl-jasmonate (MeJA) on trichome-mediated resistance responses in these tomato lines.

2015-03-24 | E-MTAB-2898 | biostudies-arrayexpress

Novel JAZ co-operativity and unexpected JA dynamics underpin Arabidopsis defence responses to Pseudomonas syringae infection

Project description:Pathogens target phytohormone signalling pathways to promote disease. Plants deploy salicylic acid (SA) mediated defences against biotrophs. Pathogens antagonise SA immunity by activating jasmonate signalling, e.g. Pseudomonas syringae pv. tomato DC3000 produces coronatine (COR), a jasmonate (JA) mimic. This study found unexpected dynamics between SA, JA and COR and co-operation between JAZ jasmonate repressor proteins during DC3000 infection. JA did not accumulate until late in the infection process and was higher in leaves challenged with coronatine deficient P. syringae or in the more resistant JA receptor mutant coi1. JAZ regulation was complex and coronatine alone was insufficient to sustainably induce JAZs. RNA was extracted from leaves of wild type Col-0 or the jaz5/10 mutant plants from leaves 6, 8, 12 or 16 hours after challenged with Pseudomonas syringae pv. tomato DC3000.

2015-08-28 | E-GEOD-72461 | biostudies-arrayexpress

Novel JAZ co-operativity and unexpected JA dynamics underpin Arabidopsis defence responses to Pseudomonas syringae infection

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The tomato MYB21 acts in ovules to mediate jasmonate-regulated fertility (RNASeq)

Project description:The function of the plant hormone jasmonic acid (JA) in development of tomato flowers was analyzed with a mutant defective in JA perception (jasmonate-insensitive1-1, jai1-1). In contrast to Arabidopsis JA-insensitive plants that are male sterile, the tomato mutant jai1-1 exhibits major defects in female development resulting in female sterility. To identify putative JA-dependent regulatory components, transcriptomics was performed using isolated ovules of three different stages of flower development, from both wild type and jai1-1. Among the strongly down-regulated genes in jai1-1, one encoding a MYB transcription factor (SlMYB21) was found. Its orthologue in Arabidopsis has a crucial role in JA-regulated stamen development. SlMYB21 showed transcription factor activity in yeast, interaction with SlJAZ9 in yeast and in planta, and complemented the Arabidopsis mutant myb21-5. To analyze SlMYB21 function in tomato ovule development, CRISPR/Cas9 mutants were created and a TILLING mutant was identified, all showing female sterility and therefore corroborating a function of MYB21 in tomato ovule development. Transcriptomics from wild type, jai1-1 and myb21-2 carpels revealed processes that might be controlled by SlMYB21. The data suggest a positive regulation of JA biosynthesis by SlMYB21, but a negative regulation of the action of auxin and GA. The results demonstrate that SlMYB21 mediates at least partially the action of JA and might control the flower to fruit transition.

2019-11-05 | E-MTAB-7545 | biostudies-arrayexpress

The tomato MYB21 acts in ovules to mediate jasmonate-regulated fertility (Microarray)

2019-10-15 | E-MTAB-7544 | biostudies-arrayexpress

Identification of JA/COI1-regulated genes in tomato reproductive tissue and JA-treated roots.

Project description:Jasmonic acid (JA) is a fatty-acid derived signaling molecule that regulates a wide variety of plant developmental and stress-related responses. We identified a jasmonate-insensitive1 (jai1) mutant of tomato that is defective in the LeCOI1 gene, which plays an essential role in induced resistance of tomato to a broad spectrum of pests, and is also required for maternal control of seed and fruit development. The present study is aimed at identifying genes involved in two JA-signaled processes that have not been studied in other plants. The first specific aim is to identify the set of JA/COI1-regulated genes in tomato reproductive tissues, with emphasis on genes expressed in maternal tissues. We hypothesize that JA/COI1 signaling regulates maternal processes that nurture the developing embryo and seed. The second aim of the study is to identify JA/COI1-regulated genes that are specifically expressed in tomato roots. Although it has been shown that JA promotes root defenses against various pests, virtually nothing is known about the JA-regulated transcriptome in roots. Tomato (Solanum lycopersicum) cv Micro-Tom wild-type and jai1 seed were grown in peat pots and maintained in growth chambers. To identify COI1-regulated genes in reproductive tissues, flower buds, open flowers and immature fruit at 7 and 17 days post-pollination were collected from 8 to 10 week old plants. To identify COI1-regulated genes in roots, 3 week old plants were exposed to exogenous JA by a single soil drench with 0.1mM JA, and roots were collected after 1, 6, 12 and 24 hours. Plants treated with water were used for the 0hr time point. All tissue was snap-frozen in liquid nitrogen, and RNA was extracted and analyzed as described in the TIGR Potato Microarray protocol (phenol method). Three biological replicates were collected for this study. Keywords: Direct comparison

2007-09-01 | GSE8284 | GEO

A TMT-based quantitative proteome analysis to elucidate the TSWV induced signaling cascade in susceptible and resistant cultivars of Solanum lycopersicum

Project description:Tomato spotted wilt virus (TSWV), transmitted by small insects known as thrips, is one of the major threats to tomato productivity across the globe. In addition to tomato, this virus infects more than 1000 other plants belonging to 85 families and is a cause of serious concern. Very little, however, is known about the molecular mechanim of TSWV induced signaling in plants. Here, we used a TMT-based quantitative proteome analysis to investigate the protein profiles of tomato leaves of two cultivars (cv 2621and 2689; susceptible and resistant respectively to TSWV infection) following TSWV inoculation. This approach resulted in the identification of 5112 proteins of which 1022 showed significant changes in response to TSWV. While the proteome of resistant cultivar majorly remain unaltered, proteome of susceptible cultivar showed distint differences following TSWV infection. TSWV modulated proteins in tomato included those with functions previously implicated in plant defence incuding secondary metabolism, ROS detoxification, MAP kinase signaling, Calcium signaling and jasmonate biosynthesis, among others. Taken together, these results provide new insights into the TSWV induced signaling in tomato leaves and may be useful in future to manage this deadly disease of plants.

2020-05-06 | PXD017250 | Pride

RNA-seq of Solanum lycopersicum pollen tube at different germination temperatures. EVOREPRO dataset

Project description:Tomato pollen tube RNAseq data

2021-04-14 | E-MTAB-9725 | biostudies-arrayexpress