Data/hora: 05/06/2024 02:12:31

Provedor de dados: 	74	
País: 	Brazil	
Título: 	Evolutionary dynamics of the karyotype of the wasp Trypoxylon (Trypargilum) nitidum (Hymenoptera, Sphecidae) from the Rio Doce State Park, Minas Gerais, Brazil	
Autores: 	Scher,Ricardo; Pompolo,Silvia das Graças.	
Data: 	2003-01-01	
Ano: 	2003	
Palavras-chave: 	C-banding; Trypoxylon nitidum; Karyotype evolution.	
Resumo: 	Cytogenetic analysis based on the distribution of C-bands showed two groups of karyotypes in a Trypoxylon nitidum population from the Rio Doce Park, State of Minas Gerais, Brazil. One of these groups, that was identical to a previously described karyotype (n = 15; 2n = 30), had a stable chromosome number and was rich in acrocentric chromosomes, whereas the other had a variable chromosome number (n = 12 to 14; 2n = 25 to 28) and was rich in pseudo-acrocentric chromosomes. We propose a hypothesis explaining the dynamics of the modifications which occurred in the karyotype of this species, based on the minimum interaction theory of Imai et al. (1986, 1988, 1994) and on the chromosome rearrangements and heteromorphisms observed by us.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000300015	
Editor: 	Sociedade Brasileira de Genética	
Relação: 	10.1590/S1415-47572003000300015	
Formato: 	text/html	
Fonte: 	Genetics and Molecular Biology  v.26 n.3 2003	
Fonte: 	info:eu-repo/semantics/openAccess