Articolo in rivista, 2018, ENG, 10.1163/15685411-00003167

Steinernema borjomiense n. sp (Rhabditida: Steinernematidae), a new entomopathogenic nematode from Georgia

Gorgadze O., Fanelli E., Lortkhipanidze M., Troccoli A., Burjanadze M., Tarasco E., De Luca F.

Gorgadze O., Lortkhipanidze M.: Institute of Zoology of Ilia State University, Tbilisi 0162, Georgia; Tarasco E.: Department of Soil, Plant and Food Sciences, Section of Entomology and Zoology, University of Bari 'A. Moro', via G. Amendola, 165/A, 70126 Bari, Italy; Burjanadze M.: Agricultural University of Georgia, Tbilisi 0103, Georgia

A new species of entomopathogenic nematode, Steinernema borjomiense n. sp., was isolated from the body of the host insect, Oryctes nasicornis (Coleoptera: Scarabaeidae), in Georgia, in the territory of Borjomi-Kharagauli. Morphological characters indicate that the new species is closely related to species of the feltiae-group. The infective juveniles are characterised by the following morphological characters: body length of 879 (777-989) mu m, distance between the head and excretory pore = 72 (62-80) mu m, pharynx length = 132 (122-142) mu m, tail length = 70 (60-80) mu m, ratio a = 26.3 (23.0-29.3), H% = 45 (40-51), D% = 54 (47-59), E% = 102 (95-115), and lateral fields consisting of seven ridges (eight incisures) at mid-body. Steinernema borjomiense n. sp. was molecularly characterised by sequencing three ribosomal regions (the ITS, the D2-D3 expansion domains and the 18S rRNA gene) and the mitochondrial COI gene. Phylogenetic analyses revealed that S. borjomiense n. sp. differs from all other known species of Steinernema and is a member of the monticolum-group.

Nematology (Leiden. Print) 20 (7), pp. 653–669

Keywords

18S rRNA gene, Coleoptera, D2-D3 domains, description, ITS, mitochondrial COI, molecular, monticolum-group, morphology, morphometrics, Oryctes nasicornis, phylogeny, Scarabaeidae, taxonomy

CNR authors

Troccoli Alberto, De Luca Francesca, Fanelli Elena

CNR institutes

IPSP – Istituto per la Protezione Sostenibile delle Piante

ID: 401470

Year: 2018

Type: Articolo in rivista

Creation: 2019-04-02 11:59:51.000

Last update: 2019-12-17 13:21:13.000

External links

OAI-PMH: Dublin Core

OAI-PMH: Mods

OAI-PMH: RDF

DOI: 10.1163/15685411-00003167

External IDs

CNR OAI-PMH: oai:it.cnr:prodotti:401470

DOI: 10.1163/15685411-00003167

ISI Web of Science (WOS): 000439858400004