Genetic control of characters associated with bean golden mosaic geminivirus resistance in Phaseolus vulgaris L.

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dc.contributorLUIS ALBERTO PESSONI
dc.contributorMARIA JOSE DE OLIVEIRA ZIMMERMANN, CNPAF
dc.contributorJOSIAS CORREA DE FARIA, CNPAF.
dc.creatorPESSONI, L. A.
dc.creatorZIMMERMANN, M. J. de O.
dc.creatorFARIA, J. C. de
dc.date2015-09-24T23:30:57Z
dc.date2015-09-24T23:30:57Z
dc.date1999-05-27
dc.date1997
dc.date2015-09-24T23:30:57Z
dc.date.accessioned2026-07-01T00:01:45Z
dc.descriptionBean golden mosaic is the most important viral disease of the bean crop (Phaseolus vulgaris L.) in Latin America. The genetics of resistance to a Brazilian strain of bean golden mosaic virus (BGMV), was studied in a 4 x 4 diallel cross without reciprocals, among the parental genotypes DOR 303, EMGOPA 201 Ouro, Carnaval, and Redlands Greenleaf C. Seedlings of the four parents, six F1 hybrids, 12 backcrosses, and F2 generations for each combination were inoculated on the eighth day after sowing by exposure to a viruliferous whitefly (Bemisia tabaci Genn.) population for 24 h, in a glasshouse, prior to transplantation to field conditions. The full set of two parents, F1, F2 and respective backcrosses for each combination was considered to be a family. Data were recorded and analyzed for foliar yellowing, plant dwarfing, and pod malformation, using a randomized block design, with two replications. Weighted generation mean analysis was performed for each of the six families. An additive gene action model was significant for the three characteristics evaluated. On the other hand, non-additive gene action had greater absolute value in most cases. Resistance to foliar yellowing conferred by genes from DRO 303 was highly heritable and was expressed equally well in the different genetic backgrounds evaluated. Such resistance may be oligogenic. Broad- and narrow-sense heritabilities were relatively high for all response traits. The three traits studied were all positively correlated, indicating that they can be simultaneously selected for enhancement. The highest correlation coefficient was obtained for dwarfing x pod malformation.
dc.identifierBrazilian Journal of Genetics, v. 20, n. 1, p. 51-58, mar. 1997.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/205830
dc.identifierhttps://doi.org/10.1590/S0100-84551997000100010
dc.identifier.urihttp://hdl.handle.net/123456789/395794
dc.languageeng
dc.rightsopenAccess
dc.subjectGeminivirus
dc.subjectBGMV
dc.subjectFeijão
dc.subjectPhaseolus vulgaris
dc.subjectControle genético
dc.subjectMosaico dourado
dc.titleGenetic control of characters associated with bean golden mosaic geminivirus resistance in Phaseolus vulgaris L.
dc.typeArtigo de periódico

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