| Registro completo |
| Provedor de dados: |
PAB
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| País: |
Brazil
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| Título: |
QTLs for resistance to soybean cyst nematode, races 3, 9, and 14 in cultivar Hartwig
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| Autores: |
Ferreira,Marcia Flores da Silva
Cervigni,Gerardo Domingo Lucio
Ferreira,Adésio
Schuster,Ivan
Santana,Fernanda Abreu
Pereira,Waldir Dias
Barros,Everaldo Gonçalves de
Moreira,Maurilio Alves
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| Data: |
2011-04-01
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| Ano: |
2011
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| Palavras-chave: |
Glycine max
Breeding
Marker-assisted selection
Molecular markers
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| Resumo: |
The objective of this work was to identify major and minor-effect quantitative trait loci (QTL) for resistance to races 3, 9, and 14 of soybean cyst nematode (SCN) in Hartwig cultivar; to map new resistance QTLs for these races; and to check for the existence of epistatic interactions between QTLs. Cultivar Hartwig is an important resistance source to SCN. Recombinant inbred lines (RIL) obtained from a cross between 'Hartwig' (resistant) and Y23 (susceptible) were evaluated regarding resistance to the three races. New genomic regions for resistance to SCN were identified by microsatellites. Four QTLs, which explained between 12 and 34% of phenotypic variance, were detected for resistance to race 3 in linkage groups (LG) A2, G, J, and M. The QTL in LG G is also important for resistance to race 9. Epistatic interactions were detected between loci, which indicate resistance to races 9 and 14. There are high and low-effect resistance QTLs to SCN.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011000400012
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| Editor: |
Embrapa Secretaria de Pesquisa e Desenvolvimento
Pesquisa Agropecuária Brasileira
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| Relação: |
10.1590/S0100-204X2011000400012
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| Formato: |
text/html
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| Fonte: |
Pesquisa Agropecuária Brasileira v.46 n.4 2011
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| Direitos: |
info:eu-repo/semantics/openAccess
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