Sokolov S.G., Vlasenko P.G., Urabe M., Atopkin D.M., Reshetnikov A.N., Yang P., Izotova G.V., Shedko M.B., Solovyev M.M.
В журнале Hydrobiologia
Год: 2024 Том: 852 Страницы: 1903–1920
Biodiversity is important for the sustainability of aquatic ecosystems, however, the microevolutionary evidences of such diversity have often escaped the attention of researchers. We assessed the genetic diversity of the cestode Nippotaenia from several river systems in Europe, Siberia, and the Far East. Individuals of this parasite were obtained from two host species of odontobutid fishes, Perccottus glenii (European and Asian Russia, China) and Odontobutis obscurus (Japan). Molecular data on the NADH dehydrogenase subunit I (nad1) mitochondrial gene and the second internal transcribed spacer (ITS2) region of the nuclear rDNA were analyzed. We identified five phylogenetic lineages of Nippotaenia from P. glenii and one lineage (probably N. mogurndae s. str.) from O. obscurus. The presented Nippotaenia lineages from P. glenii show high genetic differentiation from Nippotaenia ex O. obscurus and from each other, comparable to interspecific differences in other cestodes. All five lineages were found in P. glenii from its native range, and only two from its invaded range. The revealed complex genetic structure of Nippotaenia, which parasitize in odontobutid fishes and are used as biological tag, provides new perspectives for the analysis of invasion pathways of their fish hosts.
