Data/hora: 11/06/2024 07:10:36

Provedor de dados: 	49	
País: 	Brazil	
Título: 	Chromosome number and microsporogenesis of two accessions of Brachiaria dura Stapf (Poaceae)	
Autores: 	Risso-Pascotto,Claudiceia; Pagliarini,Maria Suely; Valle,Cacilda Borges do.	
Data: 	2009-06-01	
Ano: 	2009	
Palavras-chave: 	Brachiaria dura; Meiosis; Chromosome number; Cytomixis.	
Resumo: 	The two accessions of B. dura analyzed (DU01 and DU02) are hexaploid (2n = 6x = 54), derived from x = 9. Meiotic abnormalities, such as precocious chromosome migration to the poles, laggards and micronuclei, were recorded in low frequency in both accessions. The few multivalent chromosome association at diakinesis and meiotic stability suggested that hexaploidy probably resulted from chromosome doubling. In DU02, chromosome transfer (cytomixis) among meiocytes, involving part or the entire genome was observed. The implication of these findings for the Brachiaria breeding is discussed.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032009000200024	
Editor: 	Instituto Virtual da Biodiversidade | BIOTA - FAPESP	
Relação: 	10.1590/S1676-06032009000200024	
Formato: 	text/html	
Fonte: 	Biota Neotropica  v.9 n.2 2009	
Fonte: 	info:eu-repo/semantics/openAccess