Random amplified polymorphic DNA analysis of effective Rhizobium sp. associated with beans cultivated in Brazilian cerrado soils.
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Efficient bean nodulating Rhizobium strains, isolated from different Brazilian cerrado soils, were characterized by RAPD. This study showed great genetic heterogeneity among R. tropici and R. leguminosarum bv. phaseoli strains and allowed the constitution of genetic clusters, besides indicating the most suitable primers for this characterization. The groups of genetically distinct strains can be used in competitiveness studies to select appropriate Rhizobium strains for bean inoculation in cerrado soils.
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RAPD, Rhizobium leguminosarum bv phaseoli, Bean, Soils, Cerrado, Feijão, Rhizobium tropici