{"title":"A taxonomic update on Tylenchorhynchus annulatus (Nematoda: Dolichodoridae), a widely distributed stunt nematode species","authors":"Phougeishangbam Rolish Singh, A. Hajihassani","doi":"10.1163/15685411-bja10312","DOIUrl":null,"url":null,"abstract":"\nThe 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.","PeriodicalId":18928,"journal":{"name":"Nematology","volume":null,"pages":null},"PeriodicalIF":1.2000,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nematology","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1163/15685411-bja10312","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ZOOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
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.
期刊介绍:
Nematology is an international journal for the publication of all aspects of nematological research (with the exception of vertebrate parasitology), from molecular biology to field studies. Papers on nematode parasites of arthropods, and on soil free-living nematodes, and on interactions of these and other organisms, are particularly welcome. Research on fresh water and marine nematodes is also considered when the observations are of more general interest.
Nematology publishes full research papers, short communications, Forum articles (which permit an author to express a view on current or fundamental subjects), perspectives on nematology, and reviews of books and other media.