| Registro completo |
| Provedor de dados: |
Genet. Mol. Biol.
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| País: |
Brazil
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| Título: |
New soybean (Glycine max Fabales, Fabaceae) sources of qualitative genetic resistance to Asian soybean rust caused by Phakopsora pachyrhizi (Uredinales, Phakopsoraceae)
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| Autores: |
Pierozzi,Pedro Henrique Braga
Ribeiro,Aliny Simony
Moreira,José Ubirajara Vieira
Laperuta,Larissa Di Cássia
Rachid,Breno Francovig
Lima,Wilmar Ferreira
Arias,Carlos Alberto Arrabal
Oliveira,Marcelo Fernandes de
Toledo,José Francisco Ferraz de
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| Data: |
2008-01-01
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| Ano: |
2008
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| Palavras-chave: |
Disease resistance
Genetic inheritance
Major genes
Phakopsora pachyrhizi
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| Resumo: |
Asian soybean rust (ASR), caused by the phytopathogenic fungi Phakopsora pachyrhizi, has caused large reductions in soybean (Glycine max) yield in most locations in Brazil where it has occurred since it was first reported in May 2001. Primary efforts to combat the disease involve the development of resistant cultivars, and four dominant major genes (Rpp1, Rpp2, Rpp3 and Rpp4) controlling resistance to ASR have been reported in the literature. To develop new long-lasting soybean ASR resistance genes, we used field experiments to assess ASR leaf lesion type in 11 soybean genotypes (BR01-18437, BRS 184, BRS 231, BRS 232, BRSGO Chapadões, DM 339, Embrapa 48, PI 200487, PI 230970, PI 459025-A and PI 200526) and the 55 F2 generations derived from their biparental diallel crosses. The results indicated that PI 200487 and PI 200526 carry different dominant resistance major genes which are both different from Rpp2 through Rpp4. Furthermore, resistance to ASR in BR01-18437 is controlled by a single recessive major gene, also different from Rpp1 through Rpp4 and different from the genes in PI 200487 and PI 200526.
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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=S1415-47572008000300018
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| Editor: |
Sociedade Brasileira de Genética
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| Relação: |
10.1590/S1415-47572008000300018
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| Formato: |
text/html
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| Fonte: |
Genetics and Molecular Biology v.31 n.2 2008
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| Direitos: |
info:eu-repo/semantics/openAccess
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