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  • Title: [The use of MLVA for Corynebacterium diphtheriae genotyping--preliminary studies].
    Author: Zasada AA, Jagielski M, Rzeczkowska M, Januszkiewicz A.
    Journal: Med Dosw Mikrobiol; 2011; 63(3):209-18. PubMed ID: 22184915.
    Abstract:
    The complete genome sequence of strain NCTC 13129 C. diphtheriae were investigated in order to identify tandem repeats (VNTR). From 75 VNTR loci identified in the genome 14 were selected. Primers were designed and PCR conditions were optimized for amplification of the selected VNTR markers. Preliminary studies of usefulness of selected VNTR markers were conducted using a group of 28 C. diphtheriae strains. From 14 markers 8 were regarded as potentially useful. The diversity of individual markers ranged from 1 to 6 alleles (Simpson index from 0 to 0,746). No diversity were observed for 3 VNTR markers but it could be a results of too small group of strains analyzed in the tests. Simpson diversity index calculated for all the markers tested on 28 strains was 0,87. Results of the preliminary studies showed usefulness of MLVA for C. diphtheriae genotyping. Nevertheless, confirmation of reliability of the method should be done using a large group of strains. Moreover, the method should be compared with other genotyping methods.
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