Genetic pollution and number of matings in a black honey bee (Apis mellifera mellifera) population

1986 ◽  
Vol 73 (2) ◽  
pp. 223-227 ◽  
Author(s):  
J. M. Cornuet ◽  
A. Daoudi ◽  
C. Chevalet
Insects ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 216
Author(s):  
Matthieu Guichard ◽  
Benoît Droz ◽  
Evert W. Brascamp ◽  
Adrien von Virag ◽  
Markus Neuditschko ◽  
...  

For the development of novel selection traits in honey bees, applicability under field conditions is crucial. We thus evaluated two novel traits intended to provide resistance against the ectoparasitic mite Varroa destructor and to allow for their straightforward implementation in honey bee selection. These traits are new field estimates of already-described colony traits: brood recapping rate (‘Recapping’) and solidness (‘Solidness’). ‘Recapping’ refers to a specific worker characteristic wherein they reseal a capped and partly opened cell containing a pupa, whilst ‘Solidness’ assesses the percentage of capped brood in a predefined area. According to the literature and beekeepers’ experiences, a higher recapping rate and higher solidness could be related to resistance to V. destructor. During a four-year field trial in Switzerland, the two resistance traits were assessed in a total of 121 colonies of Apis mellifera mellifera. We estimated the repeatability and the heritability of the two traits and determined their phenotypic correlations with commonly applied selection traits, including other putative resistance traits. Both traits showed low repeatability between different measurements within each year. ‘Recapping’ had a low heritability (h2 = 0.04 to 0.05, depending on the selected model) and a negative phenotypic correlation to non-removal of pin-killed brood (r = −0.23). The heritability of ‘Solidness’ was moderate (h2 = 0.24 to 0.25) and did not significantly correlate with resistance traits. The two traits did not show an association with V. destructor infestation levels. Further research is needed to confirm the results, as only a small number of colonies was evaluated.


2018 ◽  
Vol 57 (3) ◽  
pp. 337-350 ◽  
Author(s):  
Jack Hassett ◽  
Keith A Browne ◽  
Grace P McCormack ◽  
Elizabeth Moore ◽  
Native Irish Honey Bee Society ◽  
...  

PLoS ONE ◽  
2015 ◽  
Vol 10 (4) ◽  
pp. e0124365 ◽  
Author(s):  
Irene Muñoz ◽  
Dora Henriques ◽  
J. Spencer Johnston ◽  
Julio Chávez-Galarza ◽  
Per Kryger ◽  
...  

1998 ◽  
Vol 30 (Suppl 1) ◽  
pp. S31 ◽  
Author(s):  
Lionel Garnery ◽  
Pierre Franck ◽  
Emmanuelle Baudry ◽  
Dominique Vautrin ◽  
Jean-Marie Cornuet ◽  
...  

2020 ◽  
Vol 8 (1) ◽  
pp. 2
Author(s):  
Nadezhda V. Ostroverkhova

The microsporidian Nosema parasites, primarily Nosema ceranae, remain critical threats to the health of the honey bee Apis mellifera. One promising intervention approach is the breeding of Nosema-resistant honey bee colonies using molecular technologies, for example marker-assisted selection (MAS). For this, specific genetic markers used in bee selection should be developed. The objective of the paper is to search for associations between some microsatellite markers and Nosema disease in a dark forest bee Apis mellifera mellifera. For the dark forest bee, the most promising molecular genetic markers for determining resistance to nosemosis are microsatellite loci AC117, Ap243 and SV185, the alleles of which (“177”, “263” and “269”, respectively) were associated with a low level of Nosema infection. This article is the first associative study aimed at finding DNA loci of resistance to nosemosis in the dark forest bee. Nevertheless, microsatellite markers identified can be used to predict the risk of developing the Nosema disease.


1998 ◽  
Vol 30 (Suppl 1) ◽  
pp. S49 ◽  
Author(s):  
Lionel Garnery ◽  
Pierre Franck ◽  
Emmanuelle Baudry ◽  
Dominique Vautrin ◽  
Jean-Marie Cornuet ◽  
...  

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