Construction and characterization of an expressed sequenced tag library for the mosquito vector Armigeres subalbatus

Autor(es): Mayhew, George F.; Bartholomay, Lyric C.; Kou, Hang-Yen; Rocheleau, Thomas A.; Fuchs, Jeremy F.; Aliota, Matthew T.; Tsao, I-Yu; Huang, Chiung-Yen; Liu, Tze-Tze; Hsiao, Kwang-Jen; Tsai, Shih-Feng; Yang, Ueng-Cheng; Perna, Nicole T.; Cho, Wen-Long; Christensen, Bruce M.; Chen, Cheng-Chen


Resumo: The mosquito, Armigeres subalbatus, mounts a distinctively robust innate immune response when infected with the nematode Brugia malayi, a causative agent of lymphatic filariasis. In order to mine the transcriptome for new insight into the cascade of events that takes place in response to infection in this mosquito, 6 cDNA libraries were generated from tissues of adult female mosquitoes subjected to immune-response activation treatments that lead to well-characterized responses, and from aging, naive mosquitoes. Expressed sequence tags (ESTs) from each library were produced, annotated, and subjected to comparative analyses.Results: Six libraries were constructed and used to generate 44,940 expressed sequence tags, of which 38,079 passed quality filters to be included in the annotation project and subsequent analyses. All of these sequences were collapsed into clusters resulting in 8,020 unique sequence clusters or singletons. EST clusters were annotated and curated manually within ASAP (A Systematic Annotation Package for Community Analysis of Genomes) web portal according to BLAST results from comparisons to Genbank, and the Anopheles gambiae and Drosophila melanogaster genome projects.Conclusion: The resulting dataset is the first of its kind for this mosquito vector and provides a basis for future studies of mosquito vectors regarding the cascade of events that occurs in response to infection, and thereby providing insight into vector competence and innate immunity.


Palavras-Chave: Innate immune - Response; Anopheles albimanus diptera; Comparative genome -Analysis; Aedes aegypti; Gene - Expression; Melanotic Encapsulation; Malaria parasites; Disease - Vector; Gambiae; Hemocytes


Imprenta: BMC Genomics, v. 8, n. 462, 2007


Identificador do objeto digital: 10.1186/1471-2164-8-462


Descritores: Aedes aegypti - Genome ; Aedes aegypti - Immune response ; Aedes aegypti - Molecular structure


Data de publicação: 2007