Zakharova O. Molecular-genetic polymorphism of Fusarium Link fungi, which infect maize.

We observed changes in electrophoretic spectrums of strains cultures that obtained in result of contact with fusarious resistant and sensible maize genotypes, by different cultivation terms and passages. At the study of collection and recently isolated F. moniliforme strains intraspecific changeability were found out that the polymorphism level was 49,4 % and 97,9 %. The recently isolated cultures division by cluster analysis data corresponded it specialization by advantage to the plant. It is shown that one of reasons of genetic variability within F. oxysporum is the presence of mobile elements. Fusarium species clusterization by PCR-analysis data accordinate to grouping in a taxonomic section. Fusaria PCR-detection system were developed.