Locke Grandér, Barbara
- Institutionen för ekologi, Sveriges lantbruksuniversitet
Forskningsartikel2023Vetenskapligt granskadÖppen tillgång
Evolutionarily diverse origins of deformed wing viruses in western honey bees
Hasegawa, Nonno; Techer, Maeva A.; Adjlane, Noureddine; al-Hissnawi, Muntasser Sabah; Antunez, Karina; Beaurepaire, Alexis; Christmon, Krisztina; Delatte, Helene; Dukku, Usman H.; Eliash, Nurit; El-Niweiri, Mogbel A. A.; Esnault, Olivier; Evans, Jay D.; Haddad, Nizar J.; Locke, Barbara; Munoz, Irene; Noel, Gregoire; Panziera, Delphine; Roberts, John M. K.; De la Rua, Pilar;
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Sammanfattning
Novel transmission routes can allow infectious diseases to spread, often with devastating consequences. Ectoparasitic varroa mites vector a diversity of RNA viruses, having switched hosts from the eastern to western honey bees (Apis cerana to Apis mellifera). They provide an opportunity to explore how novel transmission routes shape disease epidemiology. As the principal driver of the spread of deformed wing viruses (mainly DWV-A and DWV-B), varroa infestation has also driven global honey bee health declines. The more virulent DWV-B strain has been replacing the original DWV-A strain in many regions over the past two decades. Yet, how these viruses originated and spread remains poorly understood. Here, we use a phylogeographic analysis based on whole-genome data to reconstruct the origins and demography of DWV spread. We found that, rather than reemerging in western honey bees after varroa switched hosts, as suggested by previous work, DWV-A most likely originated in East Asia and spread in the mid-20th century. It also showed a massive population size expansion following the varroa host switch. By contrast, DWV-B was most likely acquired more recently from a source outside East Asia and appears absent from the original varroa host. These results highlight the dynamic nature of viral adaptation, whereby a vector's host switch can give rise to competing and increasingly virulent disease pandemics. The evolutionary novelty and rapid global spread of these host-virus interactions, together with observed spillover into other species, illustrate how increasing globalization poses urgent threats to biodiversity and food security.
Nyckelord
varroa; single-stranded RNA viruses; apis; phylogeography
Publicerad i
Proceedings of the National Academy of Sciences of the United States of America
2023, volym: 120, nummer: 26, artikelnummer: e2301258120
Utgivare: NATL ACAD SCIENCES
SLU författare
Globala målen (SDG)
SDG3 God hälsa och välbefinnande
SDG15 Ekosystem och biologisk mångfald
UKÄ forskningsämne
Evolutionsbiologi
Publikationens identifierare
- DOI: https://doi.org/10.1073/pnas.2301258120
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/126519