Morphological and molecular characterization of Paragonimus westermani in northeastern India

Devi, K. Rekha, Narain, Kanwar, Agatsuma, Takeshi, Blair, David, Nagataki, Mitsuru, Wickramasinghe, S., Yatawara, L., and Mahanta, Jagadish (2010) Morphological and molecular characterization of Paragonimus westermani in northeastern India. Acta Tropica, 116 (1). pp. 31-38.

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Evidence for the presence of lung flukes of the Paragonimus westermani in India remains scant. In particular, evidence based on morphology of adult worms is lacking. Metacercariae of the genus Paragonimus, recovered from crabs in two regions of northeastern India, were raised to adulthood in laboratory rats. Morphologically, these worms appear to be P. westermani. DNA sequences from the second internal transcribed spacer (ITS2) and a portion of the ribosomal large subunit gene (28S) of the nuclear ribosomal RNA gene repeat, as well as fragments of the mitochondrial cytochrome c oxidase subunit 1 (cox1) and NADH dehydrogenase subunit 1 (nad1) genes, all supported this identification. Molecular phylogenetic methods were used for studying the relatedness of these Indian flukes with counterparts from southeast and far-east Asia. Molecular data showed that Indian representatives of the P. westermani complex represent a distinct lineage. It is unclear whether the Indian form can cause disease in humans as some members of the complex do elsewhere.

Item ID: 16520
Item Type: Article (Research - C1)
ISSN: 1873-6254
Keywords: India; molecular phylogeny; Paragonimiasis; Paragonimus westermani; taxonomy
Date Deposited: 05 May 2011 23:40
FoR Codes: 06 BIOLOGICAL SCIENCES > 0603 Evolutionary Biology > 060301 Animal Systematics and Taxonomy @ 75%
11 MEDICAL AND HEALTH SCIENCES > 1108 Medical Microbiology > 110803 Medical Parasitology @ 25%
SEO Codes: 96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960807 Fresh, Ground and Surface Water Flora, Fauna and Biodiversity @ 100%
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