Data/hora: 16/06/2024 18:08:54

Biblioteca(s): | Embrapa Soja.
Data corrente: | 06/04/2004
Data da última atualização: | 27/11/2007
Autoria: | CATELLI, L. L.; ARIAS, C. A. A.; ALMEIDA, L. A. de; BROGIN, R. L.; MARIN, S. R. R.
Título: | Soybean cultivars characterization using microsatellite molecular markers.
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. 106.
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 [Glycine max (L) Merril] is considered the most important oil crop cultivated in the world. The development of cultivars more productive, stable and better adapted to the different environmental conditions of brazilian regions represent a great contribution on the soybean establishment as one of the main Brazilian crops. However, studies on the genetic basis of Brazilian cultivars reveal that the germplasm used in breeding programs has a narrow base. Nowadays, the interest on genetic characterization for commerciall protection is growing on the breeding programs, as a result of Brazilian Cultivars Protection Law, that establishes that cultivars have distinguishably, homogeneity and stability. As expected, winth the increment of the number of cultivars is increasing, the distinction among them became more difficult, demanding the use of molecular markers. Some markers such as SSR (Simple Sequence Repeats) shows interesting characteristics for these distinguish studies, as the fact of having more than one allele. Therefore, aiming to select microsatellite molecular markers to facilitate the differentiation and characterization process of soybean genotypes, 17 cultivars were selected for molecular , based on AFLP's (Amplified Fragment Length Polymorphism) analysis, in a way of representing the soybean germplasm bank. As a result of the molecular analysis, from the 13 pairs of microsatellite primers tested, 11 showed polymorphism presenting from two to three alleles. This polymorphism allowed the analysis of 26 microsatellite loci and the distinguish of 15 for the 17 soybean cultivars. Thus, these primers demonstrated a great potential on studies for differentiation and characterization of the germplasm bank of Embrapa Soybean, helping the cultivar registers of intellectual protection and also giving genetic support to increase the selection efficiency of superior genotypes.
Categoria do assunto: | --
Registro original: | Embrapa Soja (CNPSO)
Exemplares: | CNPSO - (23707-1) - UMT - PL - -- - RF 633.34072 - W927a -  - DIS