Data/hora: 24/06/2024 13:35:00

Biblioteca(s): | Embrapa Soja.
Data corrente: | 07/04/2004
Data da última atualização: | 27/07/2007
Autoria: | BROGIN, R. L.; ARIAS, C. A. A.; VELLO, N. A.; TOLEDO, J. F. F. de; PÍPOLO, A. E.; CATELLI, L. L.; MARIN, S. R. R.
Título: | Molecular mapping of a gene conferring resistance to soybean rust.
Ano de publicação: | 2004
Fonte/Imprenta: | In: WORLD SOYBEAN RESEARCH CONFERENCE, 7.; INTERNATIONAL SOYBEAN PROCESSING AND UTILIZATION CONFERENCE, 4.; CONGRESSO BRASILEIRO DE SOJA, 3., 2004, Foz do Iguassu. Abstracts of contributed papers and posters. Londrina: Embrapa Soybean, 2004.
Páginas: | p. 318.
Série: | (Embrapa Soja. Documentos, 228).
Idioma: | Inglês
Notas: | Editado por Flávio Moscardi, Clara Beatriz Hoffmann-Campo, Odilon Ferreira Saraiva, Paulo Roberto Galerani, Francisco Carlos Krzyzanowski, Mercedes Concordia Carrão-Panizzi.
Conteúdo: | Soybean rust, caused by Phakopsora pachyrhizi, is a foliar disease of soybean [Glycine max (L.) Merr.] that occurs in production areas around the world and can cause severe losses to the farmers. At the moment, four genes (Rpp1 to Rpp4) that confer resistance in soybean to soybean rust have been identified in germplasm and plant introductions. This study was conducted to identify molecular markers linked to the resistance gene present in resistant soybean FT-2. A population of 116 F2:4 genetic families, from the cross of cultivar FT-2 and susceptible cultivar Davis, was evaluated under greenhouse conditions for soybean rust phenotypic reaction and identified as resistant, segregating or susceptible. DNA from the parents was screened with 230 simple sequence repeats (SSR) primer pairs. Fourteen markers showed polymorphism in the parents and were used to screen 116 F2 plants that originated the progenies evaluated to disease reaction. Putative linked markers, that cosegregated with soybean rust reaction phenotypes, amplified by the primers Satt 277, Satt 307 and Satt 460, were mapped, respectively, 22.3 cM, 12.5 cM and 41.0 cM away from the resistance gene. These markers are located on the soybean C2 linkage group (LG), that need to be better explored in order to identify molecular markers more closely related.
Categoria do assunto: | --
Registro original: | Embrapa Soja (CNPSO)
Exemplares: | CNPSO - (23771-1) - UMT - PL - -- - RF 633.34072 - W927a -  - DIS