Psoroptes ovis
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA317697 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| Other | ||||
| PQWQ01.dat.gz | Other | |||
| PQWQ01.fasta.gz | Fasta.gz | |||
| PQWQ01.master.dat | Other | |||
| SRR3334060_1.fastq.gz | Fastqsanger.gz |
Items per page: 5 1 - 5 of 8 |
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Project description:Psoroptes ovis Transcriptome or Gene expression
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Project description:Psoroptes ovis isolate:Moredun Genome sequencing and assembly
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Project description:Sheep (N=6) infested with Psoroptes ovis mites were bled weekly and circulating leukocytes isolated from their whole blood samples. RNA was extracted and processed onto Agilent Bovine Microarrays and differentially expressed genes identified between the following time points (0 (Baseline (pre-infestation)), 1 week, 3 weeks and 6 weeks post-infestation).
2012-04-01 | E-TABM-1193 | biostudies-arrayexpress
Project description:Transcriptional analysis of ovine skin response to infection with the parasitic mite Psoroptes ovis using the Agilent ovine transcriptome microarray platform. The results of statistical analysis (differential gene expression across the time course of infection was determined using a one way-analysis of variance (ANOVA) with a Student-Newman-Keuls (SNK) post-hoc test in Genespring GX 11.0 (Agilent Technologies, UK) comparing each of the 5 time points, non-infected and 1, 3, 6 and 24 hours post infection. Multiple test correction was performed using the Benjamini & Hochberg False Discovery Rate (FDR) procedure with an FDR corrected p-value cut-off set at 0.05) and fold change analysis (Fold change analysis was performed on the one-way anova dataset, probes with a fold change greater than 2 between any of the conditions were carried forward) are in archive E-TABM-1012.additional.zip. Quality control: Six biological replicates (sheep, n=6), multiple biopsies pooled from each animal at each time point of infection. Pooled samples from each sheep at each time point hybridised in single-dye (Cy3) format to Agilent ovine arrays. Positive and negative control probes utilised to assess array QC and real time qRT-PCR validation of selected array probes
2010-08-01 | E-TABM-1012 | biostudies-arrayexpress
Project description:Gene silencing by RNA interference in the ectoparasitic mite, Psoroptes ovis
| PRJEB28594 | ENA
Project description:Psoroptic mange is a chronic, refractory, contagious and infectious disease mainly caused by the mange mite Psoroptes ovis, which can infect horses, sheep, buffaloes, rabbits, other domestic animals, deer, wild camels, foxes, minks, lemurs, alpacas, elks and other wild animals. Features of the disease include intense pruritus and dermatitis, depilation and hyperkeratosis, which ultimately result in emaciation or death caused by secondary bacterial infections. The infestation is usually transmitted by close contact between animals. Psoroptic mange is widespread in the world. In this paper, the transcriptome of P. ovis is described following sequencing and analysis of transcripts from samples of larvae (i.e. the Pso_L group) and nymphs and adults (i.e. the Pso_N_A group). The study describes differentially expressed genes (DEGs) and genes encoding allergens, which help understanding the biology of P. ovis and lay foundations for the development of vaccine antigens and drug target screening.The transcriptome of P. ovis was assembled and analyzed using bioinformatic tools. The unigenes of P. ovis from each developmental stage and the unigenes differentially between developmental stages were compared with allergen protein sequences contained in the allergen database website to predict potential allergens.We identified 38,836 unigenes, whose mean length was 825 bp. On the basis of sequence similarity with seven databases, a total of 17,366 unigenes were annotated. A total of 1,316 DEGs were identified, including 496 upregulated and 820 downregulated in the Pso_L group compared with the Pso_N_A group. We predicted 205 allergens genes in the two developmental stages similar to genes from other mites and ticks, of these, 14 were among the upregulated DEGs and 26 among the downregulated DEGs.This study provides a reference transcriptome of P. ovis in absence of a reference genome. The analysis of DEGs and putative allergen genes may lay the foundation for studies of functional genomics, immunity and gene expression profiles of this parasitic mite species.
| S-EPMC5096302 | biostudies-literature
Project description:Sheep scab, caused by infestation with Psoroptes ovis, is highly contagious, results in intense pruritus, and represents a major welfare and economic concern. Here, we report the first draft genome assembly and gene prediction of P. ovis based on PacBio de novo sequencing. The ∼63.2-Mb genome encodes 12,041 protein-coding genes.
| S-EPMC5908946 | biostudies-literature
Project description:The presence of components of the RNA interference (RNAi) pathway in Psoroptes ovis, an ectoparasitic mite responsible for psoroptic mange, was investigated through interrogation of the P. ovis genome. Homologues of transcripts representing critical elements for achieving effective RNAi in the mite, Tetranychus urticae and the model organisms Caenorhabditis elegans and Drosophila melanogaster were identified and, following the development of a non-invasive immersion method of double stranded RNA delivery, gene silencing by RNAi was successfully demonstrated in P. ovis. Significant reductions in transcript levels were achieved for three target genes which encode the Group 2 allergen (Pso o 2), mu-class glutathione S-transferase (PoGST-mu1) and beta-tubulin (Po?tub). This is the first demonstration of RNAi in P. ovis and provides a mechanism for mining transcriptomic and genomic datasets for novel control targets against this economically important ectoparasite.
| S-EPMC6211577 | biostudies-literature