1887

Abstract

Birnaviruses, including the genus , are socio-economically important viruses. Currently, only Drosophila X virus has been formally assigned to the genus , but two more viruses were recently isolated, Espirito Santo virus (ESV) and Culex Y virus. The host mosquito has been reported to carry many viruses, but seldom entomobirnaviruses. To discover potential pathogens in mosquitoes, we exploited small-RNAs high-throughput sequencing of three mosquito species caught in South China. A virus that genetically likes entomobirnavirus, Mosquito X virus (MXV), was identified from and was 97 % identical to ESV, which co-infects with Dengue virus (DENV). However, the absence of DENV in the suggested the independence of MXV infection from dengue co-infection. Our discovery complements prior research on entomobirnaviruses and proved that MXV may be widespread in mosquitoes on different continents. This work also highlights the applying of high-throughput sequencing of small RNAs to survey viruses carried by insect vectors.

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2013-03-01
2020-01-22
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