Molecular approaches to the analysis of deformed wing virus replication and pathogenesis in the honey bee, Apis mellifera.

Abstract:

BACKGROUND:For years, the understanding of the pathogenetic mechanisms that underlie honey bee viral diseases has been severely hindered because of the lack of a cell culture system for virus propagation. As a result, it is very imperative to develop new methods that would permit the in vitro pathogenesis study of honey bee viruses. The identification of virus replication is an important step towards the understanding of the pathogenesis process of viruses in their respective hosts. In the present study, we developed a strand-specific RT-PCR-based method for analysis of Deformed Wing Virus (DWV) replication in honey bees and in honey bee parasitic mites, Varroa Destructor. RESULTS:The results shows that the method developed in our study allows reliable identification of the virus replication and solves the problem of falsely-primed cDNA amplifications that commonly exists in the current system. Using TaqMan real-time quantitative RT-PCR incorporated with biotinylated primers and magnetic beads purification step, we characterized the replication and tissue tropism of DWV infection in honey bees. We provide evidence for DWV replication in the tissues of wings, head, thorax, legs, hemolymph, and gut of honey bees and also in Varroa mites. CONCLUSION:The strategy reported in the present study forms a model system for studying bee virus replication, pathogenesis and immunity. This study should be a significant contribution to the goal of achieving a better understanding of virus pathogenesis in honey bees and to the design of appropriate control measures for bee populations at risk to virus infections.

journal_name

Virol J

journal_title

Virology journal

authors

Boncristiani HF Jr,Di Prisco G,Pettis JS,Hamilton M,Chen YP

doi

10.1186/1743-422X-6-221

subject

Has Abstract

pub_date

2009-12-11 00:00:00

pages

221

issn

1743-422X

pii

1743-422X-6-221

journal_volume

6

pub_type

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