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- Title
A taxonomic update on Tylenchorhynchus annulatus (Nematoda: Dolichodoridae), a widely distributed stunt nematode species.
- Authors
Singh, Phougeishangbam Rolish; Hajihassani, Abolfazl
- Abstract
Summary: The stunt nematode species, Tylenchorhynchus annulatus (Cassidy, 1930) Golden, 1971, is a widely distributed plant parasite found associated with various major agricultural crops. In the current work, a population of T. annulatus detected from a sugarcane field in Everglades, Florida, USA, was morphologically and molecularly characterised. A comparative study was also done including the stunt nematode populations identified morphologically and molecularly by different research groups as T. agri , T. annulatus or T. crassicaudatus from China, Indonesia, Iran, Korea, Niger, Nigeria, Tanzania and the USA, revealing highly similar morphology and overlapping morphometric data among the populations. However, these populations were found separated into two maximally supported clades in phylogenetic trees based on rRNA gene sequences (28S and ITS). One clade comprised populations from China, Indonesia, Iran, Nigeria, South Korea, Tanzania and the USA, and the other clade only populations from the USA. This study also strongly supported the view that T. crassicaudatus is a junior synonym of T. annulatus.
- Subjects
CROPS; PLANT parasites; SPECIES; POPULATION of China; COMPARATIVE anatomy; MOUNTAIN soils
- Publication
Nematology, 2024, Vol 26, Issue 3, p341
- ISSN
1388-5545
- Publication type
Article
- DOI
10.1163/15685411-bja10312