| Publication Type: | Journal Article |
| Year of Publication: | 2019 |
| Authors: | Z. Wang, Bert, W., Gu, J., Couvreur, M., Li, H. |
| Journal: | Nematology |
| Volume: | 21 |
| Pagination: | 709–723 |
| ISSN: | 15685411 |
| ISBN Number: | 1568541100003 |
| Keywords: | alfalfa, description, lucerne, molecular, morphology, Morphometrics, new species, phylogeny, plant-parasitic nematode, quarantine, SEM, taxonomy |
| Abstract: | Aphelenchoides medicagus n. sp. isolated in Ningbo Port, P.R. China, from dried leaves and shoots of Medicago sativa imported from the USA, is described. It is characterised by a lateral field with four lines (three bands), stylet 9.0-12.0 μ m long, excretory pore situated at same level as, or slightly posterior, to the nerve ring, vagina sclerotised, female vulval flap absent, post-uterine sac short, spicules 9.2-14.2 μ m long (median curved line), rosethorn-shaped, apex and rostrum rounded, poorly developed, female and male tail conical with terminus bearing star-like processes. The new species belongs to the Group 3 category of Aphelenchoides species sensu Shahina. Phylogenetic analyses based on 18S, ITS and 28S D2-D3 of rDNA and mtCOI sequences confirmed its status as a new species and closely related to A. besseyi and A. fujianensis . |
| DOI: | 10.1163/15685411-00003247 |