Anopheles-mosquito-small-regulatory-RNAs
Ontology highlight
ABSTRACT:
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| ERR690809.fastq.gz | Fastqsanger.gz | |||
| ERR690810.fastq.gz | Fastqsanger.gz | |||
| ERR690811.fastq.gz | Fastqsanger.gz | |||
| ERR690812.fastq.gz | Fastqsanger.gz | |||
| ERR690813.fastq.gz | Fastqsanger.gz |
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Project description:Spermatogenesis is a highly complex developmental process, during which diploid germline stem cells are transformed into motile haploid spermatozoa. The process involves a precisely regulated action of a large number of genes, making the testes the most distinct tissue within the body. Testis transcriptome has been analysed in several groups of animals, but never systematically studied in mosquitoes. This dataset, consisting of the transcriptome of the developing testes from late larvae and early pupae of the African malaria mosquito, Anopheles gambiae, closes the existing gap.
2016-01-21 | E-MTAB-3264 | biostudies-arrayexpress
Project description:We custom-built a bioinformatics pipeline to search for 20E-modifying enzymes in the accessory glands of Anopheles gambiae males, searching for ecdysteroid kinases (EcK), ecdysone oxidases (EO), and ecdysteroid-phosphate phosphatases (EPP). To this end, we generated RNAseq datasets of different An. gambiae tissues dissected from virgin and mated females and males, and produced similar datasets for Anopheles albimanus, a South American species that does not synthetize and transfer ecdysteroids during mating. These analyses led to the identification of one candidate EPP and two potential EcKs (EcK1 and EcK2), which we demonstrated are involved in the activity of a male-specific oxidized ecdysteroid (3D20E). We further determined that 3D20E is specifically produced by the An. gambiae male accessory glands and is transferred to females during copulation, where it triggers a series of post-mating responses.
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Project description:The Anopheles gambiae midgut harbors bacteria that proliferate upon a blood feed. We used microarrays to examine the midgut gene expression response at early stages (3hours) after an artifitial meal containing heat killed bacteria.
2010-02-13 | GSE20204 | GEO
Project description:Overall, the study aims at obtaining a comprehensive picture of the African malaria mosquito, Anopheles gambiae, transcriptome using high-coverage RNA-seq of sexed whole-insect samples collected at different developmental time points. This experiment focuses on transcriptomes of 1st, 2nd, 3rd and 4th instar male and female larvae, and 2 day old male and female adults.
2015-04-01 | E-MTAB-2527 | biostudies-arrayexpress
Project description:small RNA deep seq responses of Anopheles gambiae 3 days post arbovirus infection by artificial blood feeding
2018-06-28 | E-MTAB-6444 | biostudies-arrayexpress
Project description:Overall, the study aims at obtaining a comprehensive picture of the African malaria mosquito, Anopheles gambiae, transcriptome using high-coverage RNA-seq of sexed whole-insect samples collected at different developmental time points. This experiment focuses on male and female transcriptomes from 20 hour old embryos, 12 hour old 3rd instar larvae, 24 hour old 4th instar larvae and 10 hour old pupae sampled using a strand-specific RNA-seq approach.
2015-06-15 | E-MTAB-2880 | biostudies-arrayexpress
Project description:Small RNAs of the Piwi-interacting RNA class (piRNA) play a key role in controlling the activity of transposable elements (TEs) in the animal germ line. In some arthropod species, including mosquitoes, the vectors of malaria and other pathogens, the piRNA pathway is active not only in the gonads, where it controls TE activity, but also in somatic tissues, where its targets and functions are less clear. It is thought that the piRNA pathway in somatic tissues is involved in the antiviral response and the modulation of TE activity. Here, we studied the features of small RNA production in head and thorax somatic tissues of Anopheles coluzzii focusing on the small RNAs processed from protein-coding gene mRNAs. We revealed tissue and sex specificity in the production of small RNAs derived from the genic transcripts. Genic small RNAs of 24-30 nt in length are atypical RNAs that lack the hallmarks of piRNAs. The majority of these short RNAs are derived from mitochondrial and nuclear genes involved in energy metabolism. We discuss the peculiarities of the piRNA biogenesis in Anopheles species which may result in the production of genic small RNAs in the somatic tissues.
2024-01-01 | GSE251974 | GEO
Project description:The goal of this study is to analyze the gene expression profile of Anopheles gambiae Ag55 cells and compare it with gene expression profile of blood fed female Anopheles gambiae adult to establish Ag55 cells as a potential model to study mosquito-pathogen interactions Methods: The transcript profiles of Ag55 cells were generated by RNA-sequencing, in triplicate, using Illumina HiSeq 2000 v3 platform. The 7 samples (paired-end reads, including replicates ( 3 samples from Ag55 cells and 4 samples from blood-fed female adults downloaded from NCBI GEO (Series GSE55453, SRA id : SRP039058))) were independently mapped on to A. gambiae genome (Anopheles-gambiae-PEST_CHROMOSOMES_AgamP4.fa.gz) downloaded from vectorbase by using TopHat followed by Cufflinks to estimate the expression values of the transcripts in FPKM (Fragments Per Kilobase per Million mapped reads) with the cuffdiff2 default geometric normalization. Differentially expressed genes (FDR<0.05 after Benjamini-Hochberg correction for multiple-testing) were identified for Ag55 cells relative to Blood fed female adults Results: We provide detailed gene expression and proteome profiles of Ag55 cells. We further compare the gene expression profiles of Ag55 cells and blood fed female adults. Gene Ontology enrichment analysis of our transcriptomic data suggested that Ag55 cells have phagocytic properties, a hypothesis which we confirmed using confocal imaging. Transcriptomic data further backed by proteomic data suggest that Ag55 cells express hemocyte like properties, and are immune competent. Conclusion: As Ag55 cells are immune competent and express hemocyte like properties they can be used as a model to study vector-pathogen immune response. Furthermore, the availability of transcriptomic and proteomic data of Ag55 cells will help researchers use and engineer the Ag55 cell line in an efficient way, for example by developing strategies to make it more suitable for studies of interactions with Plasmodium and other microbes.
2018-01-09 | GSE85643 | GEO
Project description:The transcriptional profile of four tissues for the multi insecticide Anopheles gambiae (Tiassale) and lab susceptible Anopheles gambiae strain N'Gousso. The malpighian tubules, abodmen integument (containing the fat body epidermal, neuronal, muscle and oenocyte cells), midgut and remaining structures were dissected and compared two ways: (i) each body part against the corresponding whole organism (ii) resistant against corresponding susceptible body parts.
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