| Registro completo |
| Provedor de dados: |
PAB
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| País: |
Brazil
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| Título: |
Validation of microsatellite markers for assisted selection of soybean resistance to cyst nematode races 3 and 14
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| Autores: |
Silva,Marcia Flores da
Schuster,Ivan
Silva,João Flávio Veloso da
Ferreira,Adésio
Barros,Everaldo Gonçalves de
Moreira,Maurilio Alves
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| Data: |
2007-08-01
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| Ano: |
2007
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| Palavras-chave: |
Glycine max
Heterodera glycines
Soybean breeding
SCN
SSR
MAS
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| Resumo: |
The objective of this work was to validate microsatellite markers associated with resistance to soybean cyst nematode (Heterodera glycines Ichinohe) races 3 and 14, in soybean (Glycine max L.) genotypes, for use in marker-assisted selection (MAS) programs. Microsatellites of soybean linkage groups A2, D2 and G were tested in two populations, and their selection efficiencies were determined. The populations were 65 F2:3 families from Msoy8001 (resistant) x Conquista (susceptible) cross, and 66 F2:3 families of S5995 (resistant) x Renascença (susceptible) cross, evaluated for resistance to races 3 and 14, respectively. Families with female index up to 30% were considered moderately resistant. Markers of A2 and G linkage groups were associated with resistance to race 3. Markers Satt309 and GMENOD2B explained the greatest proportion of phenotypic variance in the different groups. The combinations Satt309+GMENOD2B and Satt309+Satt187 presented 100% selection efficiency. Resistance to race 14 was associated with markers of G linkage group, and selection efficiency in the Satt309+Satt356 combination was 100%. The selection differential obtained by phenotypic and marker assisted selection showed that both can result in similar gains.
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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=S0100-204X2007000800011
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| Editor: |
Embrapa Secretaria de Pesquisa e Desenvolvimento
Pesquisa Agropecuária Brasileira
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| Relação: |
10.1590/S0100-204X2007000800011
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| Formato: |
text/html
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| Fonte: |
Pesquisa Agropecuária Brasileira v.42 n.8 2007
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| Direitos: |
info:eu-repo/semantics/openAccess
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