Research Article

Genotypic Characterization of Azotobacteria Isolated from Argentinean Soils and Plant-Growth-Promoting Traits of Selected Strains with Prospects for Biofertilizer Production

Figure 2

Amplified ribosomal DNA restriction analysis (ARDRA) of Azotobacter representative strains of each rep-PCR group and reference strains. The dendrogram based on analysis of restriction patterns of 16S rDNA obtained with HhaI was built using the GelCompar II program and the Dice ( ) pairwise coefficient of similarity and the UPGMA algorithm. Clusters were defined at the % similarity level. The cophenetic correlation value for this dendrogram was 0.95.
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