Data/hora: 21/06/2024 03:46:38

Biblioteca(s): | Embrapa Agricultura Digital.
Data corrente: | 16/07/2009
Data da última atualização: | 01/09/2010
Autoria: | DEMORE, P. dos S.; UNÊDA-TREVISOLI, S. H.; MORCELI, T. G. S.; MUNIZ, F. R. S.; COSTA, M. M.; SARTI, D. G. P.; MANCINI, M. C.
Afiliação: | PAULA DOS SANTOS DEMORE, FCAV/UNESP; SANDRA HELENA UNÊDA-TREVISOLI, UNESP; THAIZA GALHARDO SILVA MORCELI, UNESP; FRANCO ROMERO SILVA MUNIZ, UNESP; MARCELO MARCHI COSTA, UNESP; DANIELA GARCIA PENHA SARTI, UNESP; MELINA CRISTINA MANCINI, UNESP.
Título: | Validation of microsatellite markers for assisted selection of soybean genotypes resistant to powdery mildew.
Ano de publicação: | 2009
Fonte/Imprenta: | Crop Breeding and Applied Biotechnology, Londrina, v. 9, n. 1, p. 45-51, Mar. 2009.
Idioma: | Inglês
Conteúdo: | Powdery mildew is one of the most serious diseases of soybean and is found in all producing countries. Thepurpose of this study was to validate microsatellite markers previously identified as associated with resistance to powderymildew in soybean. The study was conducted in two F2 parent populations with contrasting resistance to powdery mildew. In the analysis 10 SSR primers were used for the populations, and four polymorphic markers were identified for cross 1(MGBR95-20937 x IAC-Foscarin 31) and three for cross 2 (MGBR-46 x EMBRAPA 48). The Chi-square analysis of thephenotypic evaluation confirmed the expected segregation (3:1) of a dominant gene related to resistance. The polymorphicmarkers also segregated as expected (1:2:1). The markers Sat_366 and Sat_393 in the crosses 1 and 2, respectively, locatedat 9.41 and 12.45 cM from the gene, were considered promising for marker-assisted selection for resistance to powderymildew in soybean, at a selection efficiency of 92.7% and 60.3% respectively.
Palavras-Chave: | Genótipos de soja resistentes ao oídio; Marcadores moleculares microssatélites; Oídio da soja; Seleção assistida de genótipos.
Thesagro: | Glycine Max.
Thesaurus Nal: | Erysiphe diffusa.
Categoria do assunto: | G Melhoramento Genético
Registro original: | Embrapa Agricultura Digital (CNPTIA)
Exemplares: | CNPTIA - (13423-1) - ADD - AP - PP -  -  -  - DIS