Steinernema sandneri n. sp. (Rhabditida: Steinernematidae), a new entomopathogenic nematode from Poland

A new species of entomopathogenic nematodes, Steinernema sandneri n. sp., was recovered by baiting from Poland. Its morphological traits indicate that the new species is a member of the feltiae-kraussei group. A body length of 843 (708-965) μm., a more anterior position of excretory pore (56 μm), and the lower D% value (40 vs. >46) discriminate this species from most of the other group members. The first-generation males of S. sandneri n. sp. can be distinguished from the other clade members by a 60 μm long spicule, a relatively long gubernaculum (GS%=79), and the position of the excretory pore (80 μm). Phylogenetic analysis of the ITS rDNA, D2D3 of 28S rDNA, and cox1 sequences confirmed that S. sandneri n. sp. is a new species of the feltiae-kraussei group, closely related to S. kraussei and S. silvaticum.

Keywords

18S rRNA, D2-D3 domains, description, entomopathogenic nematodes, ITS, mitochondrial cox1, morphology, morphometrics, phylogeny, Steinernema sandneri, taxonomy, domeny D2-D3, opis, nicienie entomopatogeniczne, mitochondrialny cox1, morfologia, morfometria, filogeneza, Steinernema sandneri, taksonomia

Citation

"Journal of Nematology", 2021, Vol. 53, s. 1-24