Psyllid metagenome
Ontology highlight
ABSTRACT:
PROVIDER: PRJDB15156 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| DRR437490_1.fastq.gz | Fastqsanger.gz | |||
| DRR437490_2.fastq.gz | Fastqsanger.gz | |||
| DRR437491_1.fastq.gz | Fastqsanger.gz | |||
| DRR437491_2.fastq.gz | Fastqsanger.gz | |||
| DRR437492_1.fastq.gz | Fastqsanger.gz |
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Project description:Analysis of bacterial communities in Psyllinae psyllids
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Project description:Analysis of bacterial communities in Triozidae psyllids
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Project description:We seqeunced mRNA from the bacterial pathogen 'Candidatus Liberibacter solanacearum" during its association with the psyllid vector Bactericera cockerelli. Total RNA was purified from psyllids, insect and bacterial rRNAs were depleted. PolyA RNA was purified using Dynabeads. PolyA purified RNA and depleted RNA were sequenced.
2014-07-21 | E-GEOD-57808 | biostudies-arrayexpress
Project description:Psyllids carrying Candidatus Liberibacter species
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Project description:Lycopersicon esculentum cv. Moneymaker tomato plants were grown for 4 weeks in greenhouse conditions (16h/8h light/darkness, 27 °C). L. esculentum was randomly sorted into two groups of 16 plants each and a third reference group of 6 plants. All plants were contained individually in mesh bags. One group of 16 plants was infested with 25 female adult tomato psyllids that were 2-3 days old per plant. The other two groups of 16 and 6 plants were not infested (healthy control, and reference pool). After 3 days, the adults were removed from the infested plants to allow for egg eclosion and eventually nymphal development. In this study, leaves infested and healthy plants were harvested for RNA extraction at 0, 3, 11, and 17 days after infestation with tomato psyllids. The reference pool was harvested on day 0. Tissue (all-leaflets) from at least three plants per group was collected, flash frozen in liquid nitrogen and pooled for each time point (0, 3, 11 and 17 days after infestation) to represent treatments for before feeding (0 d), adult feeding and egg deposition (3 d), 1st and 2nd instar feeding (11 d) and 3rd to 5th instar feeding (17 d ), respectively. The whole experiment was repeated three times (three biological replicates). Plant tissues were ground using a cold mortar and pestle. Total tomato leaf RNA was extracted using the hot-phenol protocol. The RNA was precipitated, pooled, cleaned with a kit and stored at –80C. Two populations of single-stranded cDNAs will be generated from the aliquots and labeled with the cyanine Cy3 and Cy5 fluorophores. RNA isolated from the reference pool (0 d) will be pooled from each replicate and will be labeled with Cy5; this is the reference sample for each hybridization. RNA isolated from leaves infested with tomato psyllids and healthy uninfested plants from each time point will be query samples labeled with Cy3. The two samples of labeled cDNA will be simultaneously hybridized to the same microarray. Keywords: Reference design
2008-02-21 | GSE10550 | GEO
Project description:Identification of protein interactions within Asian citrus psyllids exposed to the citrus greening bacterium, Candidatus Liberibacter asiaticus.
2017-02-27 | PXD004449 | Pride
Project description:Purpose: The tomato psyllid, Bactericera cockerelli Šulc (Hemiptera: Triozidae), is a pest of tomato (Solanum lycopersicum) and potato (S. tuberosum) in the U.S. and vectors the disease-causing pathogen ‘Candidatus Liberibacter solanacearum’. Plants undergo physiological, transcriptomic, or epigenetic changes in order to mount a stronger, faster response against secondary challenges by previously perceived threats. This is called defense ‘priming’ and it likely has an impact on vectored disease transmission. Currently, it is still unknown whether or not psyllid infestation has any lasting consequences for tomato gene expression or defense. To characterize the genes potentially involved in tomato priming against psyllids, RNA was extracted from psyllid-primed and uninfested tomato (Moneymaker) leaves three weeks after infestation. Methods: RNA was extracted and sequenced from plants three weeks after psyllid infestation. Plants were either left alone (Control or C) or infested with psyllids (Primed or J1). Libraries were developed using the TruSeq RNA Library Prep Kit v2. Sequencing was performed on the Illumina PE HiSeq 2500 v4 platform. Processed sequences were uploaded to the CyVerse Discovery Environment computational infrastructure where bioinformatic analysis was performed using the Tuxedo Suite 2 workflow. Results: Illumina HiSeq sequencing of tomato cDNA libraries produced 132,428,443 total reads that met FastQC quality control criteria. 94.6% of all reads mapped to vSL3.0 of the S. lycopersicum genome. CuffDiff2 analysis identified 310 differentially expressed genes (DEGs) between control and psyllid-primed plants (q-value <0.01). Conclusions: A week-long infestation by a small number of B. cockerelli had lasting consequences for gene expression in tomato plants. Homologs of the DEGs were associated with 1) defense against abiotic and biotic stress, 2) growth and development, and 3) components of plant biology indirectly involved in plant growth and development such as homeostasis, transcription/translation, and molecular transport.
2019-04-11 | GSE129610 | GEO
Project description:bacterial metagenome of psyllid Trioza apicalis
| PRJNA514334 | ENA
Project description:Candidatus Liberibacter asiaticus (Las) is an emergent bacterial pathogen associated with the devastating citrus Huanglongbing (HLB), also known as the greening disease. Vectored by the Asian Citrus Psyllid (Diaphorina citri), Las colonizes the phloem tissue of citrus. So far, efforts of cultivating Las in vitro have not been successful and dual-transcriptome analyses could only detect ~100 Las genes due to the low abundance of bacterial RNA in infected citrus/psyllid tissues. Therefore, the biology of this pathogen is poorly understood. Here, we established a procedure to enrich Las RNA for transcriptome analysis in order to obtain insights into the interactions of Las with its two hosts. We were able to confidently determine the expression profiles of >400 Las genes, including 106 that were differentially expressed between citrus and psyllids. Genes related to transcription/translation and defense were found to be upregulated in citrus; whereas genes upregulated in psyllids are involved in metabolic pathways related to tricarboxylic acid (TCA) cycle. Genes encoding the succinate dehydrogenase and NADH quinone oxidoreductase complexes, as well as the flagellar system are also expressed to higher levels in psyllids. We also analyzed the relative expression levels of Sec-delivered effectors, which are considered key virulence factors of Las. This work advances our understanding of the HLB biology and offers novel insight into the HLB pathogenesis.
2021-09-01 | GSE180624 | GEO