A Comparison of Deformed Wing Virus in Deformed and Asymptomatic Honey Bees
AbstractDeformed wing virus (DWV) in association with Varroa destructor is currently attributed to being responsible for colony collapse in the western honey bee (Apis mellifera). The appearance of deformed individuals within an infested colony has long been associated with colony losses. However, it is unknown why only a fraction of DWV positive bees develop deformed wings. This study concerns two small studies comparing deformed and non-deformed bees. In Brazil, asymptomatic bees (no wing deformity) that had been parasitised by Varroa as pupae had higher DWV loads than non-parasitised bees. However, we found no greater bilateral asymmetry in wing morphology due to DWV titres or parasitisation. As expected, using RT-qPCR, deformed bees were found to contain the highest viral loads. In a separate study, next generation sequencing (NGS) was applied to compare the entire DWV genomes from paired symptomatic and asymptomatic bees from three colonies on two different Hawaiian islands. This revealed no consistent differences between DWV genomes from deformed or asymptomatic bees, with the greatest variation seen between locations, not phenotypes. All samples, except one, were dominated by DWV type A. This small-scale study suggests that there is no unique genetic variant associated with wing deformity; but that many DWV variants have the potential to cause deformity. View Full-Text
- Supplementary File 1:
PDF-Document (PDF, 963 KB)
Share & Cite This Article
Brettell, L.E.; Mordecai, G.J.; Schroeder, D.C.; Jones, I.M.; da Silva, J.R.; Vicente-Rubiano, M.; Martin, S.J. A Comparison of Deformed Wing Virus in Deformed and Asymptomatic Honey Bees. Insects 2017, 8, 28.
Brettell LE, Mordecai GJ, Schroeder DC, Jones IM, da Silva JR, Vicente-Rubiano M, Martin SJ. A Comparison of Deformed Wing Virus in Deformed and Asymptomatic Honey Bees. Insects. 2017; 8(1):28.Chicago/Turabian Style
Brettell, Laura E.; Mordecai, Gideon J.; Schroeder, Declan C.; Jones, Ian M.; da Silva, Jessica R.; Vicente-Rubiano, Marina; Martin, Stephen J. 2017. "A Comparison of Deformed Wing Virus in Deformed and Asymptomatic Honey Bees." Insects 8, no. 1: 28.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.