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- Title
Morphological and molecular characterisation of Neometadorylaimus coomansi (Ali, Farooqui & Suryawanshi, 1971) Jairajpuri & Ahmad, 1992 (Dorylaimida: Tylencholaimidae), with the first report of its male and new insights into its phylogeny.
- Authors
Islam, Md Niraul; Imran, Zarrin; Abolafia, Joaquín; Peña-Santiago, Reyes; Ahmad, Wasim
- Abstract
Summary: The rare genus and species Neometadorylaimus coomansi is characterised based on an abundant population found in West Bengal, India. New morphological and morphometric data are provided, together with SEM observations and the first description of its male. Molecular analyses (18S and 28S-rDNA sequences) were also done. A comparison of the present population with the two previously known ones, all from India, showed a remarkable variability in some features, especially the body length that ranges from 1.75 to 3.29 mm. The male is distinguished by its 1.83-2.06 mm long body, 54-55 μ m long spicules, and nine or ten ventromedian supplements lacking an hiatus. New insights into the phylogeny of the genus are provided with an integrative approach combining morphological and molecular data. The monophyly of the Tylencholaimidae is supported, and a tentative relationship between Tylencholaimidae and other dorylaims lacking the pars refringens vaginae is suggested.
- Subjects
INDIA; ENDANGERED species; PHYLOGENY; VAGINA; INSIGHT
- Publication
Nematology, 2020, Vol 22, Issue 3, p313
- ISSN
1388-5545
- Publication type
Article
- DOI
10.1163/15685411-00003307