DNA characterization and karyotypic evolution in the bee genus Melipona (Hymenoptera, Meliponini).
- M. P. Rocha, S. Pompolo, Jorge Abdala Dergam, A. Fernandes, L. Campos
- BiologyHereditas
- 1 April 2002
Outgroup comparison indicates that high levels of heterochromatin represent a derived condition within Melipona, and the pattern of karyotypic evolution setsMelipona in an isolated position within the Meliponini.
Karyotypes and heterochromatin variation (C-bands) in Melipona species (Hymenoptera, Apidae, Meliponinae)
- M. P. Rocha, S. Pompolo
- Biology
- 1 March 1998
The karyotypes of eight bee species of the genus Melipona are described and compared in terms of heterochromatin content and location (C-banding technique) to identify species with high and low heterochROMatin content.
Cytogenetic Characterization of Two Partamona Species (Hymenoptera, Apinae, Meliponini) by Fluorochrome Staining and Localization of 18S rDNA Clusters by FISH
- R. Brito, S. Pompolo, M. F. Magalhães, E. G. Barros, E. Sakamoto-Hojo
- Biology
- 30 December 2005
Supernumerary pericentromeric heterochromatin and the non-homologous portion of a heteromorphic pair behaved in a similar fashion, indicating that may be originated by fission.
Evolutionary dynamics of the karyotype of the wasp Trypoxylon (Trypargilum) nitidum (Hymenoptera, Sphecidae) from the Rio Doce State Park, Minas Gerais, Brazil
- R. Scher, S. Pompolo
- Biology
- 2003
A hypothesis explaining the dynamics of the modifications which occurred in the karyotype of this species is proposed, based on the minimum interaction theory of Imai et al. (1986, 1988, 1994) and on the chromosome rearrangements and heteromorphisms observed by us.
Contribution of Cytogenetics to the Debate on the Paraphyly of Pachycondyla spp. (Hymenoptera, Formicidae, Ponerinae)
- C. Mariano, S. Pompolo, J. G. Silva, J. Delabie
- Biology
- 2012
The cytogenetic studies reveal the karyotype diversity in the ant genus Pachycondyla and reinforce the hypothesis on the paraphyly of Pachy Condyla.
Cytogenetic data on six leafcutter ants of the genus Acromyrmex Mayr, 1865 (Hymenoptera, Formicidae, Myrmicinae): insights into chromosome evolution and taxonomic implications
- L. Barros, H. J. A. C. de Aguiar, S. Pompolo
- BiologyComparative Cytogenetics
- 11 May 2016
The uniform chromosome number in the genus Acromyrmex (2n = 38) suggests that Acromymex striatus should be transferred to a new genus and other aspects of the chromosome evolution in ants are discussed.
Cytogenetic data of Partamona peckolti ( Hymenoptera, Apidae, Meliponini) by C banding and fluorochrome staining with DA/ CMA3 and DA/ DAPI
- R. Brito, A. P. Caixeiro, S. Pompolo, G. G. Azevedo
- Biology
- 2003
Heterochromatin was localized in all chromosome pericentromeric regions but some blocks could be visualized on some large chromosomes arms, suggesting that DA-CMA3-positive bands of P. peckolti correspond to nucleolar organizer regions, as previously confirmed for another Partamona species by FISH.
A RAPD marker associated with B chromosomes in Partamona helleri (Hymenoptera, Apidae)
- V. C. Tosta, T. M. Fernandes-Salomão, M. G. Tavares, S. Pompolo, E. G. Barros, L. Campos
- BiologyCytogenetic and Genome Research
- 2 February 2004
This work shows that P. helleri can carry up to four B chromosomes per individual, and shows that the RAPD technique is useful to detect specific sequences associated with B chromosomes.
Possible Introgression of B Chromosomes between Bee Species (Genus Partamona)
- V. C. Tosta, J. B. Marthe, J. Camacho
- BiologyCytogenetic and Genome Research
- 20 January 2015
The complete association between B chromosome and SCAR presence and the scarce divergence observed for this DNA sequence between the 4 species analyzed suggest the possibility that this B chromosome has recently been transferred between species through several episodes of interspecific hybridization.
Cytogenetic characterization of Partamona cupira (Hymenoptera, Apidae) by fluorochromes
- Jefferson de Brito Marthe, S. Pompolo, Lúcio Antônio de Oliveira Campos, T. Salomão, M. G. Tavares
- BiologyGenetics and Molecular Biology
- 1 April 2010
Four colonies of the stingless bee Partamona cupira were cytogenetically analyzed using conventional staining and the fluorochromes CMA3 e DAPI and the data obtained suggests that B chromosomes in P. helleri and P. cupira share a common origin.
...
...