Redescription and synonymization of Oscheius citri Tabassum, Shahina, Nasira and Erum, 2016 (Rhabditida, Rhabditidae) from India and its taxonomical consequences
Language English Country Great Britain, England Media electronic
Document type Journal Article
PubMed
33880988
DOI
10.1017/s0022149x21000134
PII: S0022149X21000134
Knihovny.cz E-resources
- Keywords
- 18S rDNA, 28S rDNA, ITS rDNA, O. cobbi, O. cynodonti, O. esculentus, O. punctatus, O. sacchari, Oscheius citri, molecular analysis, morphology, taxonomy,
- MeSH
- Phylogeny * MeSH
- Rhabditida * classification MeSH
- DNA, Ribosomal genetics MeSH
- Animals MeSH
- Check Tag
- Animals MeSH
- Publication type
- Journal Article MeSH
- Geographicals
- India MeSH
- Names of Substances
- DNA, Ribosomal MeSH
A population of a nematode species belonging to the genus Oscheius was isolated in western Uttar Pradesh, India. Morphological and morphometrical studies on this species showed its high similarity with six species described previously from Pakistan (Oscheius citri, O. cobbi, O. cynodonti, O. esculentus, O. punctatus and O. sacchari). The molecular analysis of the ITS1-5.8S-ITS2 rDNA sequences of the Indian population and the six species described from Pakistan showed that all the sequences are almost identical. Thus, based on morphological and molecular characteristics, all of the six above-mentioned Pakistani species and Indian strain do not differ from each other, hence can be considered synonyms. The correct name for this taxon is the first described species O. citri. Additionally, the phylogenetic analysis of the 18S rDNA and the 28S rDNA sequences showed that Oscheius citri is sister to the clade formed by O. chongmingensis and O. rugaoensis from China. The high similarity of morphological and morphometric characteristics of O. citri and other species, O. maqbooli, O. nadarajani, O. niazii, O. shamimi and O. siddiqii, suggest their conspecificity; however, lack of molecular data for these species does not allow this hypothesis to be tested.
Department of Zoology Government Degree College Billawar 184204 Kathua Jammu and Kashmir India
Nematology Laboratory Department of Zoology Chaudhary Charan Singh University Meerut250004 UP India
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