Genetic control of common bean (Phaseolus vulgaris) resistance to powdery mildew (Erysiphe polygoni)
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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Sociedade Brasileira de Genética
1999
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oai:scielo:S1415-475719990002000171999-08-26Genetic control of common bean (Phaseolus vulgaris) resistance to powdery mildew (Erysiphe polygoni)Rezende,Viviane FerreiraRamalho,Magno Antonio PattoCorte,Hercules RenatoGenetic 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.info:eu-repo/semantics/openAccessSociedade Brasileira de GenéticaGenetics and Molecular Biology v.22 n.2 19991999-06-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47571999000200017en10.1590/S1415-47571999000200017 |
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Rezende,Viviane Ferreira Ramalho,Magno Antonio Patto Corte,Hercules Renato |
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Rezende,Viviane Ferreira Ramalho,Magno Antonio Patto Corte,Hercules Renato Genetic control of common bean (Phaseolus vulgaris) resistance to powdery mildew (Erysiphe polygoni) |
| author_facet |
Rezende,Viviane Ferreira Ramalho,Magno Antonio Patto Corte,Hercules Renato |
| author_sort |
Rezende,Viviane Ferreira |
| title |
Genetic control of common bean (Phaseolus vulgaris) resistance to powdery mildew (Erysiphe polygoni) |
| title_short |
Genetic control of common bean (Phaseolus vulgaris) resistance to powdery mildew (Erysiphe polygoni) |
| title_full |
Genetic control of common bean (Phaseolus vulgaris) resistance to powdery mildew (Erysiphe polygoni) |
| title_fullStr |
Genetic control of common bean (Phaseolus vulgaris) resistance to powdery mildew (Erysiphe polygoni) |
| title_full_unstemmed |
Genetic control of common bean (Phaseolus vulgaris) resistance to powdery mildew (Erysiphe polygoni) |
| title_sort |
genetic control of common bean (phaseolus vulgaris) resistance to powdery mildew (erysiphe polygoni) |
| description |
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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Sociedade Brasileira de Genética |
| publishDate |
1999 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47571999000200017 |
| work_keys_str_mv |
AT rezendevivianeferreira geneticcontrolofcommonbeanphaseolusvulgarisresistancetopowderymildewerysiphepolygoni AT ramalhomagnoantoniopatto geneticcontrolofcommonbeanphaseolusvulgarisresistancetopowderymildewerysiphepolygoni AT corteherculesrenato geneticcontrolofcommonbeanphaseolusvulgarisresistancetopowderymildewerysiphepolygoni |
| _version_ |
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