Apis Mellifera
Study of the obp5 gene in Apis mellifera ligustica and Apis cerana cerana
Authors: H.X. Zhao, X.N. Zeng, Q. Liang, X.F. Zhang, W.Z. Huang, H.S. Chenand Y.X. Luo
Apis mellifera ligustica and A. cerana cerana exhibit differences in olfactory sensitivity to odors from nectariferous plants and diseased broods. It is presumed that the differences in odorant-binding proteins (OBPs) between these 2 species contribute to their olfactory sensitivity. We compared the sequences, temporal expression pattern, and binding prop.. Read More»
- Genet. Mol. Res. 14(2):
- 2015.June.12.1
- DOI:
- 10.4238/2015.June.12.1
Comparing data on the reproduction of Varroa destructor
Authors: Maria H. Corr�?ªa-Marques, Luis Medina Medina, Stephen J. Martin, D. De Jong
Varroa destructor reproductive success is considered an important character for determining the resistance of honey bees to this mite parasite. However, most of the published data are not comparable due to the different methods of ascertaining and reporting reproduction. A recently published technique that involves reconstruct.. Read More»
- Genet. Mol. Res. 2(1):
Decreased flight performance and sperm production in drones of the honey bee (Apis mellifera) slightly infested by Varroa destructor mites during pupal development
Authors: Pedro Duay, D. De Jong, Wolf Engels
We developed a bioassay to measure the flying power of drone, in order to determine which drones could reach a drone congregation area. A wind tunnel was used to test unparasitized drones and drones slightly parasitized by one or two mites during pupal development, and counts were made of the number of spermatozoa that they pr.. Read More»
- Genet. Mol. Res. 1(3):
Varroa-tolerant Italian honey bees introduced from Brazil were not more efficient in defending themselves against the mite Varroa destructor than Carniolan bees in Germany
Authors: M.H. Corr�?ªa-Marques, D. De Jong, P. Rosenkranz andL.S. Gon�?§alves
In Europe and North America honey bees cannot be kept without chemical treatments against Varroa destructor. Nevertheless, in Brazil an isolated population of Italian honey bees has been kept on an island since 1984 without treatment against this mite. The infestation rates in these colonies have decreased over the years. We l.. Read More»
- Genet. Mol. Res. 1(2):
Cell nucleus activity during post-embryonic development of Apis mellifera L. (Hymenoptera:Apidae). Intranuclear acid phosphatase
Authors: Carminda da Cruz Landim, Rejane Daniele Reginato, Regina Lucia Morelli Silva de Moraes and Vagner Melo Cavalcante
We report nuclear acid phosphatase activity in the somatic (intra-ovariolar and stromatic) and germ cells of differentiating honey bee worker ovaries, as well as in the midgut cells of metamorphosing bees. There was heterogeneity in the intensity and distribution of electron dense deposits of lead phosphate, indicative of acid.. Read More»
- Genet. Mol. Res. 1(2):