Data/hora: 02/06/2024 04:49:03

Provedor de dados: | 42
País: | Brazil
Título: | Evidence of separate karyotype evolutionary pathway in Euglossa orchid bees by cytogenetic analyses
Autores: | FERNANDES,ANDERSON; WERNECK,HUGO A.; POMPOLO,SILVIA G.; LOPES,DENILCE M.
Data: | 2013-09-01
Ano: | 2013
Palavras-chave: | Cytogenetics; Euglossini; Heterochromatin; Karyotypic evolution.
Resumo: | Euglossini are solitary bees considered important pollinators of many orchid species. Information regarding chromosome organization is available for only a small number of species in this group. In the present work, the species Euglossa townsendi and E. carolina were analyzed by cytogenetic techniques to collect information that may aid the understanding of their evolution and chromosomal organization. The chromosome number found was n = 21 for males and 2n = 42 for females in the two species. The distribution and amount of heterochromatin regions differed in the two species analyzed, where they were classified as “high” or “low” heterochromatin content, similarly to what has already been performed in social bee species of the genus Melipona. Banding patterns found in this study suggest that other mechanisms may have occurred in the karyotype evolution of this group, unlike those suggested for social bees and ants. Karyotype evolution of solitary bees appears to have occurred as an event separate from other hymenopterans and did not involve chromosome fissions and heterochromatin amplification.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000300937
Editor: | Academia Brasileira de Ciências
Relação: | 10.1590/S0001-37652013005000050
Formato: | text/html
Fonte: | Anais da Academia Brasileira de Ciências  v.85 n.3 2013
Fonte: | info:eu-repo/semantics/openAccess