Genetics of resistance to powdery mildew (Microsphaera diffusa) in Brazilian soybean populations
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Date
Advisor
Coadvisor
Graduate program
Undergraduate course
Journal Title
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Volume Title
Publisher
Sociedade Brasileira de Genética
Type
Article
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Acesso aberto
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Abstract
Crosses between resistant and susceptible soybean cultivars were performed and the F2 populations were obtained to study the inheritance of soybean resistance to powdery mildew and to estimate the number and action of genes related to resistance. The reaction to powdery mildew was studied in a greenhouse and pots carrying plants with symptoms were distributed among the pots carrying the genotypes to be tested as a source of inoculum. Individual plants were scored according to the method of Yorinori (1997), with modifications, and classified as resistant or susceptible. The results showed that adult soybeans plants can present resistance to powdery mildew, which is controlled by one major gene with a dominant effect.
Description
Keywords
powdery mildew, Glycine max, genetic control
Language
English
Citation
Genetics and Molecular Biology. Sociedade Brasileira de Genética, v. 25, n. 3, p. 339-342, 2002.
