Data/hora: 03/06/2024 16:16:06

Provedor de dados: 	86	
País: 	Brazil	
Título: 	Genomic behavior of hybrid combinations between elephant grass and pearl millet	
Autores: 	Leão,Fernando Ferreira; Davide,Lisete Chamma; Campos,José Marcello Salabert de; Pereira,Antonio Vander; Bustamante,Fernanda de Oliveira.	
Data: 	2011-07-01	
Ano: 	2011	
Palavras-chave: 	Pennisetum glaucum; Pennisetum purpureum; DNA content; Interspecific hybrids; Mixoploidy.	
Resumo: 	The objective of this work was to evaluate the genomic behavior of hybrid combinations between elephant grass (Pennisetum purpureum) and pearl millet (P. glaucum). Tetraploid (AAA'B) and pentaploid (AA'A'BB) chromosome races resulting from the backcross of the hexaploid hybrid to its parents elephant grass (A'A'BB) and pearl millet (AA) were analyzed as to chromosome number and DNA content. Genotypes of elephant grass, millet, and triploid and hexaploid induced hybrids were compared. Pentaploid and tetraploid genomic combinations showed high level of mixoploidy, in discordance with the expected somatic chromosome set. The pentaploid chromosome number ranged from 20 to 34, and the tetraploid chromosome number from 16 to 28. Chromosome number variation was higher in pentaploid genomic combinations than in tetraploid, and mixoploidy was observed among hexaploids. Genomic combinations 4x and 5x are mixoploid, and the variation of chromosome number within chromosomal race 5x is greater than in 4x.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011000700006	
Editor: 	Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira	
Relação: 	10.1590/S0100-204X2011000700006	
Formato: 	text/html	
Fonte: 	Pesquisa Agropecuária Brasileira  v.46 n.7 2011	
Fonte: 	info:eu-repo/semantics/openAccess