2016
DOI: 10.1007/s13592-016-0433-y
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Selecting honeybees for worker brood that reduces the reproduction of Varroa destructor

Abstract: -We investigated an effect of Apis mellifera worker brood on the reproduction of Varroa destructor as a resistance trait by conducting seven generations of bidirectional selection. Initial tests showed twofold differences in mite fecundity (progeny per foundress mites) between colonies of different origins. In the first two generations of selection, low and high lines differed significantly in mite fecundity (2.6 vs. 2.9 and 2.3 vs. 2.8), but in five subsequent generations the average values of the low fecundi… Show more

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Cited by 9 publications
(7 citation statements)
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“…In most cases, it is not even clear whether this survival is due to tolerance by limiting the damage to the host or rather to resistance mechanisms by reducing the reproductive success of the parasite 20 . Despite promising approaches in selective breeding for hygienic behaviour and/ or low mite reproduction 21 , 22 , it seems rather doubtful that tolerance breeding alone will solve the global Varroa problem in the foreseeable future. Therefore, nearly all currently managed bee hives require yearly treatments 8 and it is very likely that this will be further necessary in the coming decades.…”
Section: Introductionmentioning
confidence: 99%
“…In most cases, it is not even clear whether this survival is due to tolerance by limiting the damage to the host or rather to resistance mechanisms by reducing the reproductive success of the parasite 20 . Despite promising approaches in selective breeding for hygienic behaviour and/ or low mite reproduction 21 , 22 , it seems rather doubtful that tolerance breeding alone will solve the global Varroa problem in the foreseeable future. Therefore, nearly all currently managed bee hives require yearly treatments 8 and it is very likely that this will be further necessary in the coming decades.…”
Section: Introductionmentioning
confidence: 99%
“…Such an effect originating from brood could be a valuable trait to support mite resistance. However, a brood-based effect was not increased reliably in an attempt to select and breed for it (Villa et al 2016).…”
Section: Varroa -Sensitive Hygienementioning
confidence: 96%
“…This may be the case for MNR, for which empirical evidence has demonstrated high inheritance via drones or queens (Harbo and Harris, 1999;Moritz, 1985;Danka et al, 2016;Locke, 2016). However, MNR expression within surviving colonies seems complex, as workers from the same subfamilies do not exhibit the trait homogeneously (Beaurepaire et al, 2019a).…”
Section: Biological Aspectsmentioning
confidence: 99%
“…Recent evidence also suggests that there may be a brood effect contributing to HYG and VSH (Wagoner et al 2018; although such an effect has been difficult to stabilize through breeding (Villa et al, 2016). We propose here to rename the phenotypic feature of high mite non-reproduction as MNR because it may be derived from both VSH activity and an effect of bee brood (Table 1).…”
Section: Vsh: a Case Study To Illustrate The Temporal Changes In Our mentioning
confidence: 99%
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