title: [Evolution and systematics of nematodes based on molecular investigation].
abstract: Evolution and systematics of nematodes based on molecular investigation. 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 characters 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 taxonomic group.
authors.affiliation: Zakład Parazytologii, Instytut Genetyki i Mikrobiologii, Uniwersytet Wrocławski, ul. Przybyszewskiego 63, 51-148 Wrocław.
authors.forename: Anna
authors.initials: A
authors.lastname: Okulewicz
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Perec
mesh_terms: D000818:Animals; D001483:Base Sequence; D018509:DNA, Helminth / Q000032:analysis* / Q000145:classification; D004275:DNA, Ribosomal / Q000235:genetics; D019143:Evolution, Molecular; D008969:Molecular Sequence Data; D009348:Nematoda / Q000145:classification* / Q000235:genetics*; D010271:Parasites / Q000145:classification; D010802:Phylogeny; D010944:Plants / Q000469:parasitology; D013045:Species Specificity
chemical_list: D018509:DNA, Helminth; D004275:DNA, Ribosomal