Abstract
Species-specific PCR assay was used for the identification of Hungarian Fusarium graminearum isolates in pure mycelial culture. The Fg16F/Fg16R primer pair of the three known species-specific primers appeared to be the most appropriate one to identify F. graminearum. Two methods were used for comparative determination of the amplicon size of F. graminearum strains: traditional agarose gel electrophoresis, and chip electrophoresis. Our results have shown that the chip electrophoresis is an easy-to-use, time-efficient substitute for conventional agarose gel electrophoresis; moreover it provides a more precise size determination of amplicons. Amplicon size ranging from 415 bp to 421 bp in tested isolates may be associated with genetic diversity in the Hungarian population of F. graminearum. The PCR assay described in this study can be used for the routine detection and identification of F. graminearum without isolation and morphological investigation of this fungus.
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