Data/hora: 05/06/2024 01:22:42

Provedor de dados: 	74	
País: 	Brazil	
Título: 	Cytogenetic characterization of two species of Frieseomelitta Ihering, 1912 (Hymenoptera, Apidae, Meliponini)	
Autores: 	Carvalho,Antônio F.; Costa,Marco Antônio.	
Data: 	2011-01-01	
Ano: 	2011	
Palavras-chave: 	Hymenoptera; Frieseomelitta; Interspecific differentiation; C-banding; Heterochromatin.	
Resumo: 	The cytogenetic analysis of Frieseomelitta dispar and F. francoi revealed the chromosome numbers 2n = 30 and n = 15 and a karyotypic formula 2K = 4M+2Mt+4A+20A M. The number of chromosomes observed was consistent with those reported for other Frieseomelitta species. The occurrence of the Mt chromosome and other features of the karyotype formulae suggest a close relationship between F. dispar, F. francoi and F. varia. Nevertheless, it was possible to differentiate the karyotypes of the species by DAPI/CMA3 staining, which revealed GC-rich regions on two chromosome pairs of F. dispar: one acrocentric and one pseudoacrocentric. In F. francoi, the same kinds of regions were observed on a pair of metacentrics and on a pair of acrocentrics. Our analysis also confirmed the chromosome number conservation in Frieseomelitta and suggests that infrequent pericentric inversion could constitute a synapomorphy for the group including F. dispar, F. francoi, and F. varia.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000200012	
Editor: 	Sociedade Brasileira de Genética	
Relação: 	10.1590/S1415-47572011005000010	
Formato: 	text/html	
Fonte: 	Genetics and Molecular Biology  v.34 n.2 2011	
Fonte: 	info:eu-repo/semantics/openAccess