Characterization of Echinostoma revolutum and Echinostoma robustum from ducks in Bangladesh based on morphology, nuclear ribosomal ITS2 and mitochondrial nad1 sequences - PubMed (original) (raw)
Characterization of Echinostoma revolutum and Echinostoma robustum from ducks in Bangladesh based on morphology, nuclear ribosomal ITS2 and mitochondrial nad1 sequences
Uday Kumar Mohanta et al. Parasitol Int. 2019 Apr.
Abstract
Precise discrimination of Echinostoma species within the 'revolutum' group is quite difficult because of their morphological similarities. The objective of this study was to precisely characterize the echinostomes of ducks from Bangladesh based on both morphological and molecular characteristics. Two Echinostoma species were identified: E. revolutum and E. robustum. In the phylogenetic trees (ITS2 and nad1), E. revolutum and E. robustum belonged to their respective Eurasian clade, which is distinct from the American clade. These results suggest that both species have two distinct and geographically separated lineages, Eurasian and American. Our molecular and morphological data combined with previously published data supports the synonymy of E. robustum, E. miyagawai, and E. friedi previously based on either molecular or morphological evidence. This study thus improves our understanding of species diversity of the 'revolutum' group, particularly in Asia.
Keywords: Bangladesh; Echinostoma revolutum; Echinostoma robustum; ITS2; nad1.
Copyright © 2018 Elsevier B.V. All rights reserved.
Comment in
- Taxonomic comments on the validity of Echinostoma miyagawai Ischii, 1932 (Trematoda: Echinostomatidae).
Heneberg P. Heneberg P. Parasitol Int. 2020 Feb;74:101931. doi: 10.1016/j.parint.2019.101931. Parasitol Int. 2020. PMID: 31706483 No abstract available.
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