Ten Years of Deformed Wing Virus (DWV) in Hawaiian Honey Bees (Apis mellifera), the Dominant DWV-A Variant Is Potentially Being Replaced by Variants with a DWV-B Coding Sequence

Viruses

卷:13

EthelM. Villalobos¹  Isobel Grindrod²  StephenJohn Martin²  DeclanC. Schroeder³  JessicaL. Kevill⁴ 

[1] College of Tropical Agriculture and Human Resources, University of Hawaii at Mānoa, 3050 Maile Way, Honolulu, HI 96822, USA;

[2] School of Environment and Life Sciences, University of Salford, Manchester M5 4WX, UK;

[3] School of Natural Sciences, Bangor University, Bangor, Gwynedd LL57 2UW, UK;

[4] Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, St. Paul, MN 55108, USA;

关键词: honey bee;    deformed wing virus;    Varroa;   

DOI  :  10.3390/v13060969

来源: DOAJ

【 摘 要 】

The combination of Deformed wing virus (DWV) and Varroa destructor is arguably one of the greatest threats currently facing western honey bees, Apis mellifera. Varroa’s association with DWV has decreased viral diversity and increased loads of DWV within honey bee populations. Nowhere has this been better studied than in Hawaii, where the arrival of Varroa progressively led to the dominance of the single master variant (DWV-A) on both mite-infested Hawaiian Islands of Oahu and Big Island. Now, exactly 10 years following the original study, we find that the DWV population has changed once again, with variants containing the RdRp coding sequence pertaining to the master variant B beginning to co-dominate alongside variants with the DWV-A RdRp sequence on the mite-infested islands of Oahu and Big Island. In speculation, based on other studies, it appears this could represent a stage in the journey towards the complete dominance of DWV-B, a variant that appears better adapted to be transmitted within honey bee colonies.

【 授权许可】

Unknown