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  • Title: RAPD fingerprinting is useful for identification of Azospirillum strains.
    Author: Fani R, Bandi C, Bardin MG, Comincini S, Damiani G, Grifoni A, Bazzicalupo M.
    Journal: Microb Releases; 1993 Mar; 1(4):217-21. PubMed ID: 7904224.
    Abstract:
    In vitro amplification of genomic DNA fragments with single primers of arbitrary sequence was used as a rapid and sensitive method to obtain fingerprints of ten strains belonging to three of the Azospirillum species: brasilense, lipoferum and amazonense. Each strain showed a distinctive pattern of bands that permitted its unequivocal identification. Closely related strains produced almost identical fingerprints. Pairwise comparison and cluster analysis of the amplification patterns allowed grouping of the strains. The resulting dendrograms are similar to previous dendrograms based on the restriction endonuclease analysis (REA) of total DNA and on the restriction fragment length polymorphism (RFLP). Our results indicate that the random amplified polymorphic DNA (RAPD) technique is a simple, fast and useful tool for the determination of genetic relationships among Azospirillum isolates and to evaluate the genomic stability of the Azospirillum strains released in the environment.
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