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  • Title: Polymorphism of Aeromonas spp. tRNA intergenic spacers.
    Author: Laganowska M, Kaznowski A.
    Journal: Syst Appl Microbiol; 2005 Apr; 28(3):222-9. PubMed ID: 15900969.
    Abstract:
    We investigated the length polymorphism of the intergenic spacers lying between tRNA genes of Aeromonas spp. A total of 69 strains representing all known genomic species of Aeromonas were used in the study. tDNA-PCR patterns were examined by Dice coefficient (S(D)) and unweighted pair group method of clustering (UPGMA). The strains were allocated into 15 groups at a similarity level of 70%. The strains belonging to seven genomic species: A. hydrophila (HG 1), A. caviae (HG 4), A. sobria (HG 7), A. veronii (HG 8/10), A. encheleia (HG 16), A. popoffii (HG 17), and A. culicicola (HG 18) formed distinct clusters. Our study revealed a genetic heterogeneity of the following species: A. bestiarum, A. salmonicida, A. media, A. eucrenophila, A. jandaei, A. schubertii, and A. allosaccharophila.
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