| Full text | |
| Author(s): |
Menezes, R. S. T.
[1]
;
Carvalho, A. F.
[2]
;
Correia, J. P. S. O.
[1]
;
Silva, T. S.
[1]
;
Somavilla, A.
[3]
;
Costa, M. A.
[1]
Total Authors: 6
|
| Affiliation: | [1] Univ Estadual Santa Cruz, Dept Ciencias Biol, Ilheus, BA - Brazil
[2] Univ Fed Sao Carlos, Dept Genet Evolut & Biol Mol, Sao Paulo - Brazil
[3] Inst Nacl de Pesquisas da Amazonia, Manaus, Amazonas - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | Insectes Sociaux; v. 61, n. 4, p. 385-393, NOV 2014. |
| Web of Science Citations: | 4 |
| Abstract | |
Chromosome number and morphology are relevant aspects of genomic organization of eukaryotes and are considered key components to comprehend evolutionary mechanisms and karyotypic differentiation. Social wasps belonging to the tribe Epiponini show complex social characteristics that make these insects interesting models for genetic and evolutionary studies. However, there is a paucity of genetic information in social wasps as a whole. Aiming to investigate the process of chromosomal evolution of the social Epiponini wasps, chromosomes of ten species of this group were analyzed using Giemsa and fluorochrome staining techniques and fluorescence in situ hybridization in two species. In this study a high variation in the chromosome number and morphology was found and the previous range of chromosome number of Epiponini was broadened from n = 8-32 to n = 5-33. We also suggest that chromosomal segments with high GC content must have had a key role in the karyotype diversification of these wasps. Moreover, based on a phylogenetic background we find evidence of a main role of chromosomal fusion in the occurrence of gradual decrease of chromosome number in Epiponini during its chromosomal evolutionary history. (AU) | |
| FAPESP's process: | 11/13391-2 - Has the disjunction of the South American rainforests resulted in a differential effect on the genetic diversity of the populations of two Neotropical social wasps (Hymenoptera: vespidae: Epiponini)? |
| Grantee: | Antônio Freire de Carvalho Filho |
| Support Opportunities: | Scholarships in Brazil - Doctorate |