| Registro completo |
| Provedor de dados: |
Genet. Mol. Biol.
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| País: |
Brazil
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| Título: |
Genetic control of common bean (Phaseolus vulgaris) resistance to powdery mildew (Erysiphe polygoni)
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| Autores: |
Rezende,Viviane Ferreira
Ramalho,Magno Antonio Patto
Corte,Hercules Renato
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| Data: |
1999-06-01
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| Ano: |
1999
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| Resumo: |
Genetic control of common bean (Phaseolus vulgaris) resistance to powdery mildew (Erysiphe polygoni) was studied using segregating populations from the bean variety crosses Jalo x ESAL 686 and ESAL 550 x ESAL 686. F2 plants, together with the parents, were inoculated and evaluated using a scale of values from one (plant without symptoms) to nine (completely infected plant). F2 plants were harvested individually, and F2:3 families were obtained. These families were evaluated in an 11 x 11 and 12 x 12 simple lattice statistical design for the Jalo x ESAL 686 and ESAL 550 x ESAL 686 crosses, respectively, using the same value scale as the F2 generation. The segregation observed in F2 plants and F2:3 families indicated that two genes are involved in genetic control, due to a double recessive epistasis. The high linear regression coefficient (b) between F2 plants and their F2:3 family, 0.66 for ESAL 550 x ESAL 686 cross, and 0.71 for Jalo x ESAL 686 cross, showed that the trait is highly heritable.
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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=S1415-47571999000200017
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| Editor: |
Sociedade Brasileira de Genética
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| Relação: |
10.1590/S1415-47571999000200017
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| Formato: |
text/html
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| Fonte: |
Genetics and Molecular Biology v.22 n.2 1999
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| Direitos: |
info:eu-repo/semantics/openAccess
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