Research is mainly focused on the study of structure of phylogenetically informative genes (mitochondrial and ribosomal genes) with an emphasis on the molecular taxonomy, origin, evolution and relationships of metazoan parasites of fish and wild ruminants. Key areas of our interest are molecular systematics of parasitic platyhelminthes and the development of novel population genetic markers, especially microsatellite loci. In chromosome research, we carry out detailed cytogenetic survey of helminth species/groups, describe chromosomal characteristics of rDNA sites and propose hypotheses about karyotype evolution.