Data/hora: 12/06/2024 07:30:18

Provedor de dados: 	86	
País: 	Brazil	
Título: 	Molecular characterization and pathogenicity of isolates of Beauveria spp. to fall armyworm	
Autores: 	Carneiro,Andréa Almeida; Gomes,Eliane Aparecida; Guimarães,Claudia Teixeira; Fernandes,Fernando Tavares; Carneiro,Newton Portilho; Cruz,Ivan.	
Data: 	2008-04-01	
Ano: 	2008	
Palavras-chave: 	Spodoptera frugiperda; Entomopathogenic fungi; RAPD; RDNA-ITS.	
Resumo: 	The objective of this work was to evaluate the pathogenicity of 24 Beauveria isolates to Spodoptera frugiperda larvae, and characterize them molecularly through rDNA-ITS sequencing and RAPD markers. Sequencing of rDNA-ITS fragments of 570 bp allowed the identification of isolates as B. bassiana or B. brongniarti by sequence comparison to GenBank. Sixty seven polymorphic RAPD fragments were capable to differentiate 20 among 24 Beauveria isolates, grouping them according to the derived host insect and to pathogenicity against maize fall armyworm larvae. Three RAPD markers were highly associated to the pathogenicity against S. frugiperda, explaining up to 67% of the phenotypic variation. Besides identification and molecular characterization of Beauveria isolates, ITS sequence and RAPD markers proved to be very useful in selecting the isolates potentially effective against S. frugiperda larvae and in monitoring field release of these microorganisms in biocontrol programs.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2008000400010	
Editor: 	Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira	
Relação: 	10.1590/S0100-204X2008000400010	
Formato: 	text/html	
Fonte: 	Pesquisa Agropecuária Brasileira  v.43 n.4 2008	
Fonte: 	info:eu-repo/semantics/openAccess