Data/hora: 26/05/2024 21:59:18

Biblioteca(s): 	Embrapa Soja.	
Tipo da produção científica: 	Artigo em Periódico Indexado	
Circulação/Nível: 	Internacional - A	
Data corrente: 	03/11/2008	
Data da última atualização: 	26/07/2017	
Autoria: 	SOSA-GOMEZ, D. R.; CORONEL, N.; BINNECK, E.; ZUCCHI, M. I.; ROSADO-NETO, G.	
Afiliação: 	DANIEL RICARDO SOSA-GOMEZ, CNPSO; NORMA CORONEL, Estación Experimental Agroindustrial Obispo Colombres; ELISEU BINNECK, CNPSO; MARIA INES ZUCCHI, Instituto Agronômico de Campinas; GERMANO ROSADO-NETO, Universidade Federal do Paraná.	
Título: 	RAPD and mitochondrial DNA analysis of the soybean stalk weevil, Sternechus subsignatus (Coleoptera: Curculionidae.	
Ano de publicação: 	2008	
Fonte/Imprenta: 	Bulletin of Entomological Research, Cambridge, v. 98, n. 5, p. 475-481, June 2008.	
DOI: 	http://dx.doi.org/10.1017/S0007485308005798	
Idioma: 	Inglês	
Conteúdo: 	Sternechus subsignatus Boheman (Curculionidae: Sternechini) is one of the primary Curculionidae species that reduces soybean yield in Brazil. Initially, outbreaks were reported in southern Brazil in 1973; but, more recent, outbreaks were reported in Bahia (summer 1997-1998) and Maranhão (summer 2003-2004), two states in northeastern Brazil. A putative related species, S. pinguis (Fabricius), was first detected in Salta Province, Argentina. The objective of this study was to evaluate intraspecific molecular polymorphisms of geographically distinct Sternechus populations. Randomly amplified polymorphic DNA (RAPD) profiles and partial mitochondrial cytochrome B (CytB) gene sequences were used to determine whether individual soybean stalk weevils were one of two different species and to infer pest invasion pattern. Putative S. pinguis and S. subsignatus populations were collected in San Agustin (Cruz Alta, Tucumán Province, Argentina) and different sampling sites in the Brazilian states of Paraná, Bahia and Maranhão. Polymorphic bands were obtained by RAPD and analyzed by Dice coefficients. Populations from southern Brazil were more closely related genetically to an Argentinean group than the populations sampled in northeastern Brazil. The Londrina Co., Brazil population displayed the highest intra-population genetic similarity. Most of the soybean stalk weevils collected from San Agustin, TucumÃ¡n, Argentina were divergent from those collected in Brazil. Sequencing and parsimony analysis of CytB did not differentiate specimens collected in Argentina and Brazil. Thus, our data show that soybean stalk weevil outbreaks and population increases in northeastern Brazil involved local genotypes.	
Thesagro: 	Soja.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Soja (CNPSO)	
Exemplares: 	CNPSO - (28653-1) - UPC - AP - PP - 11500 -  - 11500 - DIS