Temporal changes in the viromes of Swedish Varroa-resistant and Varroa-susceptible honeybee populations

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Thaduri, SrinivasSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för ekologi,Department of Ecology (författare)

Temporal changes in the viromes of Swedish Varroa-resistant and Varroa-susceptible honeybee populations

Artikel/kapitelEngelska2018

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2018-12-06
Public Library of Science (PLoS),2018
Public Library of Science,2024

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LIBRIS-ID:oai:slubar.slu.se:97531
https://res.slu.se/id/publ/97531URI
https://doi.org/10.1371/journal.pone.0206938DOI

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Språk:engelska
Sammanfattning på:engelska

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Ämneskategori:art swepub-publicationtype

Anmärkningar

The parasitic mite, Varroa destructor, in combination with the viruses it vectors, is the main cause for global colony losses of the European honeybee, Apis mellifera. However, an isolated honeybee population established in 1999 on the Island of Gotland, Sweden has naturally acquired resistance to the mite, and has survived without mite control treatment for more than 18 years. A recent study has shown that this mite resistant (MR) population also appears to be resistant to Black queen cell virus (BQCV) and Sacbrood virus (SBV) and tolerant to Deformed wing virus (DWV), relative to nearby mite susceptible (MS) honeybee populations. In this study, RNA sequencing was employed to corroborate these previous findings and identify other viral factors that may play a role in the enhanced survival of this mite resistant honeybee population. Two additional honeybee-infecting viruses, Apis rhabdovirus-1 (ARV-1) and Lake Sinai virus (LSV), were identified and near-complete genomes of these two viruses were obtained. Phylogenetic analyses of the assembled virus sequences revealed consistent separation between the MR and MS honeybee populations, although it is unclear whether this is due to pre-existing differences between the viruses in the two populations when they were established, and isolated, or due to virus genetic adaptation towards reduced virulence in the MR population, to promote colony survival. Reverse transcription quantitative polymerase chain reaction(RT-qPCR) analyses show higher ARV and LSV titres in MS colonies compared to MR colonies, gradually increasing from summer to autumn 2009, and reaching maximum titres in the following spring 2010. While the DWV and BQCV titres in MR colonies increased between autumn 2009 and spring 2010, the SBV practically disappeared entirely by spring 2010. Possible explanations for the apparent virus tolerance or resistance in the Gotland mite-resistant honeybee population are discussed.

Ämnesord och genrebeteckningar

NATURVETENSKAP Biologi Mikrobiologi hsv//swe
NATURAL SCIENCES Biological Sciences Microbiology hsv//eng
NATURVETENSKAP Biologi Evolutionsbiologi hsv//swe
NATURAL SCIENCES Biological Sciences Evolutionary Biology hsv//eng

Biuppslag (personer, institutioner, konferenser, titlar ...)

Locke Grandér, BarbaraSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för ekologi,Department of Ecology(Swepub:slu)50731 (författare)
Granberg, FredrikSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Inst för biomedicin och veterinär folkhälsovetenskap,Department of Biomedical Science and Veterinary Public Health(Swepub:slu)50339 (författare)
Rodrigues De Miranda, JoachimSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för ekologi,Department of Ecology(Swepub:slu)50450 (författare)
Sveriges lantbruksuniversitetInstitutionen för ekologi (creator_code:org_t)
Sveriges lantbruksuniversitet

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Ingår i:PLoS ONE: Public Library of Science (PLoS)131932-6203

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NATURVETENSKAP: NATURVETENSKAP; och Biologi; och Mikrobiologi

NATURVETENSKAP: NATURVETENSKAP; och Biologi; och Evolutionsbiolog ...

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Av lärosätet: Sveriges Lantbruksuniversitet

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