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Culex quinquefasciatus

ABSTRACT: Transcriptome analysis of Culex cells after West Nile virus infection

PROVIDER: PRJNA257797 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR1539390_1.fastq.gz	Fastqsanger.gz
	SRR1539390_2.fastq.gz	Fastqsanger.gz
	SRR1539391_1.fastq.gz	Fastqsanger.gz
	SRR1539391_2.fastq.gz	Fastqsanger.gz
	SRR1539388_1.fastq.gz	Fastqsanger.gz

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Analysis of Culex quinquefasciatus responses to WNV infection

Project description:Analysis of Culex quinquefasciatus responses to West Nile virus (WNV) infection at 7 and 14 days after ingestion of infected blood in the gut and carcass tissues.

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Analysis of Culex quinquefasciatus responses to WNV infection

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Genome-wide expression profiles and identification of upregulated genes in larval Culex quinquefasciatus during exposure to permethrin

Project description:The Southern house mosquito, Culex quinquefasciatus, is a vector of the causative agents of many diseases including West Nile Fever, St. Louis Encephalitis, and lymphatic filariasis. In order to manage the spread of these diseases, vector control efforts rely heavily on insecticides, including pyrethroids, namely permethrin. In our study we investigated the changes in the gene expression profiles of a highly-permethrin resistant strain of Cx. quinquefasciatus during constant exposure to permethrin at the LC-0, LC-50, and LC-70 rates, which killed 0, 50, and 70% of all larvae, respectively. Overall, we identified several genes that were up-regulated including detoxification genes such as cytochrome P450s as well as genes that were down-regulated.

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RNA-sequencing of Culex pipiens molestus and Culex pipiens quinquefasciatus

Project description:Culex pipiens molestus and Cx. p. quinquefasciatus are the members of Culex pipiens Complex, but they display relatively large differences in behavior and physiological responses. We compared the genes of these mosquitoes to identify those that were differentially expressed in each subspecies. Such genes could play important roles in subspecies-specific blood feeding or oviposition behavior.

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Project description:Culex pipiens pallens and Cx. p. quinquefasciatus are important vectors of many diseases, such as West Nile fever and lymphatic filariasis. The widespread use of insecticides to control these disease vectors and other insect pests has led to insecticide resistance becoming common in these species. High throughput screening using SSH and specific microarray platforms was thought to have identified some resistance-related genes. However, limitations of these methods meant that only a few hundred of the many thousand genes could be screened. It wasn’t until the sequencing of the Cx. quinquefasciatus genome in 2010 that it became possible to screen all 18.9 thousand genes in the mosquito genome for anti-insecticidal activity. We used high throughout Illumina sequencing to identify hundreds of Cx. p. pallens and Cx. p. quinquefasciatus genes that were differentially expressed in response to pesticide exposure. The identification of these genes is a vital first step for more detailed investigation of the molecular mechanisms involved in insecticide resistance in mosquitoes. In this study, larvae of Cx. pipiens pallens and Cx. pipiens quinquefasciatus were collected from field and transported to the laboratory and reared to adulthood to get F1 generation. Then, half of the F1 generation was conducted to pesticide bioassay. RNA extraction and Illumina sequencing were undertaken in another half of the F1 generation. Therefore, Samples used in Illumina sequencing did not contact any insecticides. Twelve Cx. pipiens pallens and Cx. pipiens quinquefasciatus lavae were undertaken Illumina RNA sequencing.

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