Mutagenesis of faba bean (Vicia faba L.) and the identification of five different genes controlling no nodulation,ineffective nodulation or supernodulation |
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Authors: | Gérard Duc |
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Affiliation: | (1) Station de Génétique et d'Amélioration des Plantes, INRA, BV 1540, 21034 Dijon Cédex, France |
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Abstract: | Summary Mutagenesis ofVicia faba L. using ethyl methanesulfonate has yielded three mutants (f13, f73, f245) with ineffective nodulation (Nod+Fix–), one mutant (f48) unable to nodulate (Nod–) and one supernodulating mutant (f32) having 3 to 5 times more nodules than the control in the absence of combined nitrogen, and expressing nitrate tolerant nodulation (Nod++, Nts). All of the mutant phenotypes were controlled by single and distinct recessive genes designatedsyml tosym5, respectively. Grafting experiments showed that the (Nod+Fix–) and (Nod–) phenotypes were both under root genotype control and that the (Nod++, Nts) phenotype was under shoot genotype control. |
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Keywords: | mutagenesis nodulation supernodulation Vicia faba faba bean |
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