A three-year survey of honey bee viruses in Lithuania

Blažytė‐Čereškienė, Laima; Skrodenytė-Arbačiauskienė, Vesta; Radžiūtė, Sandra; Čepulytė-Rakauskienė, Rasa; Apšegaitė, Violeta; Būda, Vincas

doi:10.1080/00218839.2016.1211389

Cited by 9 publications

(6 citation statements)

References 52 publications

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“…Early studies of honey bee pathology by Bailey et al [37] revealed a peak prevalence during late spring and early summer for several common viruses, such as BQCV, ABPV, SBV and bee virus Y, as well as for other pathogens such as the gut microsporidia Nosema apis, followed by a general reduction in prevalence and abundance in fall and winter. More recent epidemiological studies have followed virus dynamics over time and confirmed this variation of virus prevalence across seasons [45,[127][128][129][130]. Additionally, the U.S. National Honey Bee Disease Survey (2009-2014) has shown that annual virus prevalence peaks can shift from year to year.…”

Section: Temporal Dynamics Of Viruses Infecting Honey Beesmentioning

confidence: 88%

Diversity and Global Distribution of Viruses of the Western Honey Bee, Apis mellifera

Beaurepaire

Piot

Doublet

et al. 2020

Insects

173

161

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In the past centuries, viruses have benefited from globalization to spread across the globe, infecting new host species and populations. A growing number of viruses have been documented in the western honey bee, Apis mellifera. Several of these contribute significantly to honey bee colony losses. This review synthetizes the knowledge of the diversity and distribution of honey-bee-infecting viruses, including recent data from high-throughput sequencing (HTS). After presenting the diversity of viruses and their corresponding symptoms, we surveyed the scientific literature for the prevalence of these pathogens across the globe. The geographical distribution shows that the most prevalent viruses (deformed wing virus, sacbrood virus, black queen cell virus and acute paralysis complex) are also the most widely distributed. We discuss the ecological drivers that influence the distribution of these pathogens in worldwide honey bee populations. Besides the natural transmission routes and the resulting temporal dynamics, global trade contributes to their dissemination. As recent evidence shows that these viruses are often multihost pathogens, their spread is a risk for both the beekeeping industry and the pollination services provided by managed and wild pollinators.

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Section: Temporal Dynamics Of Viruses Infecting Honey Beesmentioning

confidence: 88%

Diversity and Global Distribution of Viruses of the Western Honey Bee, Apis mellifera

Beaurepaire

Piot

Doublet

et al. 2020

Insects

173

161

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“…Another possibility is that both viruses circulate in the population, but infection with one causes damage to the host in such a way that susceptibility to the second is dramatically increased, perhaps in a manner analogous to HIV’s synergism with TB though immune suppression ( Kwan and Ernst, 2011 ) or influenza virus’ changing of the environment of the nasopharynx, allowing secondary bacterial invasion ( Joseph et al, 2013 ). Viral coinfections are ubiquitously reported in prevalence studies in bees ( Anderson and Gibbs, 1988 ; Evans, 2001 ; Chen et al, 2004 ; Nielsen et al, 2008 ; Bacandritsos et al, 2010 ; Choe et al, 2012 ; Mouret et al, 2013 ; Gajger et al, 2014 ; McMahon et al, 2015 ; Blažytė-Čereškienė et al, 2016 ; Thu et al, 2016 ; Roberts et al, 2017 ; Manley et al, 2020 ), but to our knowledge, only McMahon et al (2015) and Manley et al (2020) tested for a departure from random expectations of infection, and no departure was found. However, non-random associations between parasites appear common, having been reported in, among other taxa including mammals ( Behnke et al, 2005 ; Jolles et al, 2008 ; Griffiths et al, 2011 ), birds ( Clark et al, 2016 ), arthropods ( Václav et al, 2011 ; Hajek and van Nouhuys, 2016 ) and plants ( Seabloom et al, 2009 ; Biddle et al, 2012 ).…”

Section: Discussionmentioning

confidence: 56%

Virus Prevalence and Genetic Diversity Across a Wild Bumblebee Community

et al. 2021

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Viruses are key population regulators, but we have limited knowledge of the diversity and ecology of viruses. This is even the case in wild host populations that provide ecosystem services, where small fitness effects may have major ecological impacts in aggregate. One such group of hosts are the bumblebees, which have a major role in the pollination of food crops and have suffered population declines and range contractions in recent decades. In this study, we investigate the diversity of four recently discovered bumblebee viruses (Mayfield virus 1, Mayfield virus 2, River Liunaeg virus, and Loch Morlich virus), and two previously known viruses that infect both wild bumblebees and managed honeybees (Acute bee paralysis virus and Slow bee paralysis virus) from isolates in Scotland. We investigate the ecological and environmental factors that determine viral presence and absence. We show that the recently discovered bumblebee viruses were more genetically diverse than the viruses shared with honeybees. Coinfection is potentially important in shaping prevalence: we found a strong positive association between River Liunaeg virus and Loch Morlich virus presence after controlling for host species, location and other relevant ecological variables. We tested for a relationship between environmental variables (temperature, UV radiation, wind speed, and prevalence), but as we had few sampling sites, and thus low power for site-level analyses, we could not conclude anything regarding these variables. We also describe the relationship between the bumblebee communities at our sampling sites. This study represents a first step in the description of predictors of bumblebee infection in the wild.

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“…The high virulence of BQCV, SBV and ABPV [4,61,[80][81][82][83] compared to the low virulence of DWV [80] could explain why they are less likely to be transmitted vertically without causing queen supersedure or colony health issues [84]. Differences in infection patterns between countries can be caused by climatic conditions, the seasonality of honey bee viruses [35,69,[85][86][87][88][89][90][91] or by the low number of samples per country. This is reflected in the significant differences in infection frequencies between the spring and summer sampling seasons in this study.…”

Section: Discussionmentioning

confidence: 99%

Dynamics in vertical transmission of viruses in naturally selected and traditionally managed honey bee colonies across Europe

Bouuaert

Smet

Brunain

et al. 2022

Preprint

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The ‘suppressed in-ovo virus infection’ trait (SOV) was the first trait applied in honey bee breeding programs aimed to increase resilience to virus infections, a major threat for colony survival. By screening drone eggs for viruses, the SOV trait scores the antiviral resistance of queens and its implications for vertical transmission. In this study, queens from both naturally surviving and traditionally managed colonies from across Europe were screened using a two-fold improved SOV phenotyping protocol. First, a gel-based RT-PCR was replaced by a RT-qPCR. This not only allowed quantification of the infection load but also increased the test sensitivity. Second, a genotype specific primer set was replaced by a primer set that covered all known deformed wing virus (DWV) genotypes, which resulted in higher virus loads and fewer false negative results. It was demonstrated that incidences of vertical transmission of DWV were more frequent in naturally surviving populations than in traditionally managed colonies, although the virus load in the eggs remained the same. Dynamics in vertical transmission were further emphasized when comparing virus infections with queen age. Interestingly, older queens showed significantly lower infection loads of DWV in both traditionally managed and naturally surviving colonies, as well as reduced DWV infection frequencies in traditionally managed colonies when compared with younger queens. Seasonal variation in vertical transmission was found with lower infection frequencies in spring compared to summer for DWV and black queen cell virus. Together, these patterns in vertical transmission suggest an adaptive antiviral response of queens aimed at reducing vertical transmission over time.

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A three-year survey of honey bee viruses in Lithuania

Cited by 9 publications

References 52 publications

Diversity and Global Distribution of Viruses of the Western Honey Bee, Apis mellifera

Diversity and Global Distribution of Viruses of the Western Honey Bee, Apis mellifera

Virus Prevalence and Genetic Diversity Across a Wild Bumblebee Community

Dynamics in vertical transmission of viruses in naturally selected and traditionally managed honey bee colonies across Europe

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