Prevalence of honeybee viruses in different regions of China and Argentina

Ding, Guoyong; Fondevila, Norberto; Palacio, Marí­a Alejandra; Merke, Julieta; Martínez, Andrés Guerrero; Camacho, Belkis; Aignasse, Andrea; Figini, E.; Rodríguez, Graciela; Liang, Liping; Liu, Z; Shi, Wei

doi:10.20506/rst.35.3.2572

Cited by 13 publications

(23 citation statements)

References 27 publications

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“…Losses of Africanized honey bee colonies due to varroosis are not reported and possible negative effects on honey production seem to be negligible [160]. This is surprising, as in contrast to South Africa, viruses associated with Varroa like Deformed Wing Virus are widespread in South America [164][165][166] and Africanized bees are not resistant against the virus [167,168], although in one study, the rate of virus increase was lower in Africanized bees than in European bees [169].…”

Section: Resistance Of Africanized Beesmentioning

confidence: 99%

Natural selection, selective breeding, and the evolution of resistance of honeybees (Apis mellifera) against Varroa

Alphen

Fernhout²

2020

Zoological Lett

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We examine evidence for natural selection resulting in Apis mellifera becoming tolerant or resistant to Varroa mites in different bee populations. We discuss traits implicated in Varroa resistance and how they can be measured. We show that some of the measurements used are ambiguous, as they measure a combination of traits. In addition to behavioural traits, such as removal of infested pupae, grooming to remove mites from bees or larval odours, small colony size, frequent swarming, and smaller brood cell size may also help to reduce reproductive rates of Varroa. Finally, bees may be tolerant of high Varroa infections when they are resistant or tolerant to viruses implicated in colony collapse. We provide evidence that honeybees are an extremely outbreeding species. Mating structure is important for how natural selection operates. Evidence for successful natural selection of resistance traits against Varroa comes from South Africa and from Africanized honeybees in South America. Initially, Varroa was present in high densities and killed about 30% of the colonies, but soon after its spread, numbers per hive decreased and colonies survived without treatment. This shows that natural selection can result in resistance in large panmictic populations when a large proportion of the population survives the initial Varroa invasion. Natural selection in Europe and North America has not resulted in large-scale resistance. Upon arrival of Varroa, the frequency of traits to counter mites and associated viruses in European honey bees was low. This forced beekeepers to protect bees by chemical treatment, hampering natural selection. In a Swedish experiment on natural selection in an isolated mating population, only 7% of the colonies survived, resulting in strong inbreeding. Other experiments with untreated, surviving colonies failed because outbreeding counteracted the effects of selection. If loss of genetic variation is prevented, colony level selection in closed mating populations can proceed more easily, as natural selection is not counteracted by the dispersal of resistance genes. In large panmictic populations, selective breeding can be used to increase the level of resistance to a threshold level at which natural selection can be expected to take over.

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Section: Resistance Of Africanized Beesmentioning

confidence: 99%

Natural selection, selective breeding, and the evolution of resistance of honeybees (Apis mellifera) against Varroa

Alphen

Fernhout²

2020

Zoological Lett

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“…ABPV infection rate of (22%) in A . c. cerana was reported in Guangdong, while there was no infection of this virus in Fujian until now (Ding et al., ). IAPV detection was reported in Fujian Province with a prevalence of (11%) in A. mellifera, and the prevalence of IAPV in A .…”

Section: Discussionmentioning

confidence: 97%

“…Additionally, (37.5%) of A. mellifera colonies were infected with CSBV, which showed that the western honeybee is also susceptible to CSBV (Nai et al, 2018). ABPV infection rate of (22%) in A. c. cerana was reported in Guangdong, while there was no infection of this virus in Fujian until now (Ding et al, 2016). IAPV detection was reported in Fujian Province with a prevalence of (11%) in A. mellifera, and the prevalence of IAPV in A. c. cerana was also reported in…”

Section: The Surveys Of Domestic a C Cerana Populations In China Havementioning

confidence: 92%

Prevalence of bee viruses in Apis cerana cerana populations from different locations in the Fujian Province of China

Hassanyar

Huang

et al. 2019

MicrobiologyOpen

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Prevalence of honeybee viral diseases has recently been causing major problems in the beekeeping industry, causing economic losses worldwide. Honeybees are susceptible to a variety of diseases and various pathogens. Among these pathogens, prevalence viruses, along with other factors, are seriously threatening the health of bee species. In the present study, samples were collected from 80 Apis cerana cerana (A. c. cerana) colonies from three different locations, Cangshan, Fuan, and Yongtai, in the Fujian Province of China. All samples were screened using the reverse transcription polymerase chain reaction (RT‐PCR) method for detection of seven honeybee viruses, namely, Chinese sacbrood virus (CSBV), deformed wing virus (DWV), Israeli acute paralysis virus (IAPV), black queen cell virus (BQCV), chronic bee paralysis virus (CBPV), acute bee paralysis virus (ABPV), and Kashmir bee virus (KBV). Our results showed that CSBV was the most prevalent as it was detected in (90%), of the samples, DWV was detected in (81.25%), and IAPV was detected in (26.25%). In contrast, insignificant prevalence results were obtained from all apiaries for BQCV, CBPV, APBV, and KBV, which were not detected in any sample. Here, we are providing the first report on the molecular detection of honeybee viruses, especially the prevalence of IAPV, from different regions in the Fujian Province of China with a high prevalence of bee viruses, on A. c. cerana, and there is great concern for the presence of honeybee viruses in the population of the native honeybee (A. c. cerana) in China.

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“…In addition, previous reports demonstrated that the virus present in different bee food sources (honey, pollen and royal jelly) may be transmitted horizontally between adult bees such as queens, workers, or drones [6]. Recent studies showed the presence of virus in honeybee colonies from Argentinean producers located along temperate and subtropical regions [7][8][9]. Notably, many honeybee viruses have been detected in Argentinian stingless bees and bumblebees [10,11].…”

Section: Introductionmentioning

confidence: 99%

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mentioning

confidence: 99%

Detection of Honeybee Viruses in a Queen-Rearing Apiary from Argentina

Ferrufino¹,

Gonzalez²,

Santos³

et al. 2020

MCDA

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Centro de investigaciones en CienciasAgronómicas y Veterinarias (CICVyA), Argentina Recently, BQCV was detected in Argentinean apiaries located along different geographic regions, with a prevalence of 8% [8]. Acute bee paralysis virus (ABPV) is a widespread bee pathogen that has been linked with colony losses [14]. Previous reports demonstrated highly increased percentage of infection by ABPV in Slovenian queen rearing apiaries [5]. ABPV usually shows low prevalence values and its detection is not associated with clinical signs. However, when the virus is present at high titers, elevated mortality rates are evident [14].

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Prevalence of honeybee viruses in different regions of China and Argentina

Cited by 13 publications

References 27 publications

Natural selection, selective breeding, and the evolution of resistance of honeybees (Apis mellifera) against Varroa

Natural selection, selective breeding, and the evolution of resistance of honeybees (Apis mellifera) against Varroa

Prevalence of bee viruses in Apis cerana cerana populations from different locations in the Fujian Province of China

Detection of Honeybee Viruses in a Queen-Rearing Apiary from Argentina

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