ASSESSMENT OF INTEGRON GENE CASSETTE ARRAYS IN STRAINS OF XANTHOMONAS FRAGARIAE AND X. ARBORICOLA pvs. FRAGARIAE AND PRUNI

D. Barionovi, M. Scortichini

Abstract


A total of 54 Xanthomonas strains belonging to X. fragariae and to X. arboricola pathovars fragariae and pruni were screened for their integron cassette arrays banding pattern and for their repetitive-sequence PCR genomic pattern. Species and pathovars showed cassette array patterns that clearly differentiated them. Variability in the cassette array pattern was observed solely within strains of X. a. pv. pruni. No correlation between the two cassette array patterns shown by the strains of this pathovar and host plant or genomic pattern inferred by repetitive PCR was observed. The two xanthomonads pathogenic to strawberry, X. fragariae and X. arboricola pv. fragariae, showed different integron cassette arrays. In addition to species, integrons might generate diversity also within some Xanthomonas pathovars.

Keywords


integrons; mobile genetic elements; Xanthomonas; repetitive-sequence PCR; lateral gene transfer

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DOI: http://dx.doi.org/10.4454/jpp.v88i3.873

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