Microbial Genetics
Interaction and behavior of virgin and physogastric queens in three Meliponini species (Hymenoptera, Apidae)
Authors: F.H. Nogueira-Ferreira, E.V. Silva-Matos and R. Zucchi
We studied the behavior of virgin queens of the stingless bee species Schwarziana quadripunctata, Paratrigona lineata and Tetragona clavipes, investigating internal nest activities, including the cell provisioning and oviposition process. We made direct observation of queen behavior, with the aid of video filming. Forty-four v.. Read More»
- Genet. Mol. Res. 8(2):
Morphometric and genetic changes in a population of Apis mellifera after 34 years of Africanization
Authors: T.M. Francoy, D. Wittmann, V. Steinhage, M. Drauschke, S. M�¼ller, D.R. Cunha, A.M. Nascimento, V.L.C. Figueiredo, Z.L.P. Sim�µes, D. De Jong, M.C. Arias and L.S. Gon�§alves
Though the replacement of European bees by Africanized honey bees in tropical America has attracted considerable attention, little is known about the temporal changes in morphological and genetic characteristics in these bee populations. We examined the changes in the morphometric and genetic profiles of an Africanized honey b.. Read More»
- Genet. Mol. Res. 8(2):
Unsuccessful attacks dominate a drone-preying wasp�s hunting performance near stingless bee nests
Authors: D. Koedam, E.J. Slaa, J.C. Biesmeijer and P. Nogueira-Neto
Bee males (drones) of stingless bees tend to congregate near entrances of conspecific nests, where they wait for virgin queens that initiate their nuptial flight. We observed that the Neotropical solitary wasp Trachypus boharti (Hymenoptera, Cabronidae) specifically preys on males of the stingless bee Scaptotrigona postica (Hy.. Read More»
- Genet. Mol. Res. 8(2):
Production of workers, queens and males in Plebeia remota colonies (Hymenoptera, Apidae, Meliponini), a stingless bee with reproductive diapause
Authors: D.A. Alves, V.L. Imperatriz-Fonseca and P.S. Santos-Filho
Queen, male and worker production was studied during one year in three Plebeia remota colonies from Atlantic Rainforest in Cunha, São Paulo State, and two from a subtropical Araucaria forest in Prudentópolis, Paraná State. All the colonies were kept in São Paulo city during our study. Plebeia remota.. Read More»
- Genet. Mol. Res. 8(2):
Sequential hygienic behavior in Carniolan honey bees (Apis mellifera carnica)
Authors: K.P. Gramacho and L.S. Gon�§alves
We examined the sequence, order or steps of hygienic behavior (HB) from pin-killed pupae until the removal of them by the bees. We conducted our study with four colonies of Apis mellifera carnica in Germany and made four repetitions. The pin-killing method was used for evaluation of the HB of bees. The data were collected ever.. Read More»
- Genet. Mol. Res. 8(2):
- vol8-2kerr027
- DOI:
- 10.4238/vol8-2kerr027
Prediction of genomic islands in seven human pathogens using the Z-Island method
Authors: W. Wei and F.-B. Guo
We adopted the method of Zhang and Zhang (the Z-Island method) to identify genomic islands in seven human pathogens, analyzing their chromosomal DNA sequences. The Z-Island method is a theoretical method for predicting genomic islands in bacterial genomes; it consists of determination of the cumulative GC profile and computati.. Read More»
- Genet. Mol. Res. 10(4):
- 2011.October.5.1
- DOI:
- 10.4238/2011.October.5.1
The impact of forest exploitation on Amazonian stingless bees (Apidae, Meliponini)
Authors: G.C. Venturieri
The protocols available to sustainably exploit natural forest resources are known as “sustainable forest management”. This type of management generally does not take into account the effect of timber exploitation on pollinators. Stingless bees, which include many species that play an important role as pollinators a.. Read More»
- Genet. Mol. Res. 8(2):
Overall codon usage pattern of enterovirus 71
Authors: M.R. Ma, L. Hui, M.L. Wang, Y. Tang, Y.W. Chang, Q.H. Jia,X.H. Wang, W. Yan and X.Q. Ha
Hand, foot, and mouth disease (HFMD) is a systemic illness in children and is usually caused by enterovirus 71 (EV71). To provide new insights into the genetic features of EV71 and the relationship between the overall codon usage pattern of this virus and that of humans, values for relative synonymous codon usage (RSCU), effec.. Read More»
- Genet. Mol. Res. 13(1):
- 2014.January.21.1
- DOI:
- 10.4238/2014.January.21.1
Genetic variability in Melipona quinquefasciata (Hymenoptera, Apidae, Meliponini) from northeastern Brazil determined using the first internal transcribed spacer (ITS1)
Authors: J.O.P. Pereira, B.M. Freitas, D.M.M. Jorge, D.C. Torres,C.E.A. Soares and T.B. Grangeiro
Melipona quinquefasciata is a ground-nesting South American stingless bee whose geographic distribution was believed to comprise only the central and southern states of Brazil. We obtained partial sequences (about 500-570 bp) of first internal transcribed spacer (ITS1) nuclear ribosomal DNA from Melipona specimens putatively i.. Read More»
- Genet. Mol. Res. 8(2):
- vol8-2kerr025
- DOI:
- 10.4238/vol8-2kerr025
Hygienic behavior of the stingless bee Plebeia remota (Holmberg, 1903) (Apidae, Meliponini)
Authors: P. Nunes-Silva, V.L. Imperatriz-Fonseca and L.S. Gon�§alves
We investigated hygienic behavior in 10 colonies of Plebeia remota, using the pin-killed method. After 24 h the bees had removed a mean of 69.6% of the dead brood. After 48 h, the bees had removed a mean of 96.4% of the dead brood. No significant correlation was found between the size of the brood comb and the number of dead p.. Read More»
- Genet. Mol. Res. 8(2):
- vol8-2kerr026
- DOI:
- 10.4238/vol8-2kerr026