Note on the presence of the sym-1 gene in Vicia faba hampering its symbiosis with Rhizobium leguminosarum |
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| Authors: | Gérard Duc Jean Picard |
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| Institution: | (1) Station de Génétique et d'Amélioration des Plantes, INRA, B.V. 1540, 21034 DIJON Cedex, France |
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| Abstract: | Summary A symbiotically defective mutant in Vicia faba is described. This character is controlled by a recessive gene named sym-1. Reciprocal graft experiments indicate that only the root system controls its expression. Depending on the strain of Rhizobium, the root phenotype can be either Fix+ Nod- or Nod-. |
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| Keywords: | Vicia faba fababean Rhizobium genetics plant mutant nitrogen fixation |
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