Microbiota variations in Culex nigripalpus disease vector mosquito of West Nile virus and Saint Louis Encephalitis from different geographic origins

PeerJ

article

Dagne Duguma¹  Michael W. Hall³  Chelsea T. Smartt¹  Mustapha Debboun²  Josh D. Neufeld⁴ 

[1] Florida Medical Entomology Laboratory, Institute of Food and Agricultural Sciences, University of Florida;Mosquito and Vector Control Division, Harris County Public Health;Faculty of Graduate Studies, Dalhousie University;Department of Biology, University of Waterloo

关键词: Mosquitoes;    Insect vectors;    Biogeography;    Viral disease;    Microbiome;    Culex;   

DOI  :  10.7717/peerj.6168

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

Although mosquito microbiota are known to influence reproduction, nutrition, disease transmission, and pesticide resistance, the relationship between host-associated microbial community composition and geographical location is poorly understood. To begin addressing this knowledge gap, we characterized microbiota associated with adult females of Culex nigripalpus mosquito vectors of Saint Louis Encephalitis and West Nile viruses sampled from three locations in Florida (Vero Beach, Palmetto Inland, and Palmetto Coast). High-throughput sequencing of PCR-amplified 16S rRNA genes demonstrated significant differences among microbial communities of mosquitoes sampled from the three locations. Mosquitoes from Vero Beach (east coast Florida) were dominated by uncultivated Asaia sp. (Alphaproteobacteria), whereas microbiota associated with mosquitoes collected from two mosquito populations at Palmetto (west coast Florida) sites were dominated by uncultured Spironema culicis (Spirochaetes), Salinisphaera hydrothermalis (Gammaproteobacteria), Spiroplasma (Mollicutes), uncultured Enterobacteriaceae, Candidatus Megaira (Alphaproteobacteria; Rickettsiae), and Zymobacter (Gammaproteobacteria). The variation in taxonomic profiles of Cx. nigripalpus gut microbial communities, especially with respect to dominating taxa, is a potentially critical factor in understanding disease transmission and mosquito susceptibility to insecticides among different mosquito populations.

【 授权许可】

CC BY