Ewolucja i systematyka nicieni w oparciu o badania molekularne

The use of molecular phylogenetics to examine the interrelationships between animal parasites, free-living nematodes, and plant parasites versus traditional classification based on morphological-ecological c haracters was discussed and reviewed. Distinct differences were observed between parasitic nematodes and free·living ones. Within the former group, animal parasites turned out to be distinctly different from plant parasites. Using small subunit of ribosomal RNA gene sequence from a wide range of nematodes, there is a possibility to compare animal-parasitic, plant-parasitic and free-living taxa. Nowadays the parasitic nematodes expressed sequence tag (EST) project is currently generating sequence information to provide a new source of data to examine the evolutionary history of this taxonomlc group.