Data/hora: 09/06/2024 03:36:52

Provedor de dados: | 86
País: | Brazil
Título: | QTL mapping for protein content in soybean cultivated in two tropical environments
Autores: | Soares,Taís Cristina Bastos; Good-God,Pedro Ivo Vieira; Miranda,Fábio Demolinari de; Soares,Janaína Bastos; Schuster,Ivan; Piovesan,Newton Deniz; Barros,Everaldo Gonçalves de; Moreira,Maurilio Alves.
Data: | 2008-11-01
Ano: | 2008
Palavras-chave: | Glycine max; Linkage map; Molecular markers; Recombinant inbred lines; Quantitative trait loci.
Resumo: | The objectives of this study were to detect quantitative trait loci (QTL) for protein content in soybean grown in two distinct tropical environments and to build a genetic map for protein content. One hundred eighteen soybean recombinant inbred lines (RIL), obtained from a cross between cultivars BARC 8 and Garimpo, were used. The RIL were cultivated in two distinct Brazilian tropical environments: Cascavel county, in Paraná, and Viçosa county, in Minas Gerais (24º57'S, 53º27'W and 20º45'S, 42º52'W, respectively). Sixty-six SSR primer pairs and 65 RAPD primers were polymorphic and segregated at a 1:1 proportion. Thirty poorly saturated linkage groups were obtained, with 90 markers and 41 nonlinked markers. For the lines cultivated in Cascavel, three QTL were mapped in C2, E and N linkage groups, which explained 14.37, 10.31 and 7.34% of the phenotypic variation of protein content, respectively. For the lines cultivated in Viçosa, two QTL were mapped in linkage groups G and #1, which explained 9.51 and 7.34% of the phenotypic variation of protein content. Based on the mean of the two environments, two QTL were identified: one in the linkage group E (9.90%) and other in the group L (7.11%). In order for future studies to consistently detect QTL effects of different environments, genotypes with greater stability should be used.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2008001100012

Editor:

Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira

Relação: | 10.1590/S0100-204X2008001100012
Formato: | text/html
Fonte: | Pesquisa Agropecuária Brasileira  v.43 n.11 2008
Fonte: | info:eu-repo/semantics/openAccess