Increased tolerance and resistance to virus infections: a possible factor in the survival of Varroa destructor-resistant honey bees (Apis mellifera).
Increased tolerance and resistance to virus infections: a possible factor in the survival of Varroa destructor-resistant honey bees (Apis mellifera).
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DOI：
10.1371/journal.pone.0099998
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发表时间：
2014
期刊：
影响因子：
3.7
通讯作者：
de Miranda JR
中科院分区：
文献类型：
--
作者：
Locke B;Forsgren E;de Miranda JR
蜜蜂外寄生螨（瓦螨）在世界范围内分布，比所有其他已知的养蜂疾病造成的损害更大。然而，瓦螨引起的群体死亡更准确地说是由螨虫传播的继发病毒感染的结果。这意味着蜜蜂对瓦螨的抵抗力可能包括对病毒感染的抵抗力或耐受性。本研究的目的是了解瑞典哥特兰岛独特的抗螨 (MR) 欧洲蜜蜂种群是否存在这种情况。这个种群在不受控制的螨虫侵扰中存活了十多年，并发展出了与螨虫相关的特定抗性特征。使用 RT-qPCR 技术，我们监测了 Gotland MR 种群中的晚季病毒感染、瓦螨侵染和蜜蜂群体动态，并将其与附近养蜂场的螨敏感 (MS) 群体进行了比较。从夏季到秋季，MR和MS群体之间的变形翅病毒（DWV）滴度增加相似，而与MS群体相比，MR群体中的黑蜂王细胞病毒（BQCV）和囊状病毒（SBV）滴度大幅下降几个数量级。 MR 群体在接下来的冬季全部存活下来，但螨虫感染率高，DWV 感染率高，群体规模小，秋季产卵比例低，而 MS 群体全部死亡。讨论了病毒滴度这些变化的可能解释及其与瓦螨抗性和群体冬季生存的相关性。
The honey bee ectoparasitic mite, Varroa destructor, has a world-wide distribution and inflicts more damage than all other known apicultural diseases. However, Varroa-induced colony mortality is more accurately a result of secondary virus infections vectored by the mite. This means that honey bee resistance to Varroa may include resistance or tolerance to virus infections. The aim of this study was to see if this is the case for a unique population of mite-resistant (MR) European honey bees on the island of Gotland, Sweden. This population has survived uncontrolled mite infestation for over a decade, developing specific mite-related resistance traits to do so. Using RT-qPCR techniques, we monitored late season virus infections, Varroa mite infestation and honey bee colony population dynamics in the Gotland MR population and compared this to mite-susceptible (MS) colonies in a close by apiary. From summer to autumn the deformed wing virus (DWV) titres increased similarly between the MR and MS populations, while the black queen cell virus (BQCV) and sacbrood virus (SBV) titres decreased substantially in the MR population compared to the MS population by several orders of magnitude. The MR colonies all survived the following winter with high mite infestation, high DWV infection, small colony size and low proportions of autumn brood, while the MS colonies all perished. Possible explanations for these changes in virus titres and their relevance to Varroa resistance and colony winter survival are discussed.
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影响因子：
3.4
作者：
de Miranda, J. R.;Fries, I.
通讯作者：
Fries, I.
影响因子：
4.4
作者：
Dainat, Benjamin;Evans, Jay D.;Neumann, Peter
通讯作者：
Neumann, Peter
DOI：
10.1080/0005772x.2005.11417323
发表时间：
2005-12-01
期刊：
BEE WORLD
影响因子：
--
作者：
Ellis, JD;Munn, PA
通讯作者：
Munn, PA
影响因子：
2.4
作者：
Fries, Ingemar;Imdorf, Anton;Rosenkranz, Peter
通讯作者：
Rosenkranz, Peter
影响因子：
3.8
作者：
Gisder, Sebastian;Aumeier, Pia;Genersch, Elke
通讯作者：
Genersch, Elke