Preliminary genetic evidence of two different populations of Opisthorchis viverrini in Lao PDR

Pitaksakulrat, Opal, Kiatsopit, Nadda, Laoprom, Nonglak, Webster, Bonnie L., Webster, Joanne P., Lamberton, Poppy H.L., Laha, Thewarach, Andrews, Ross H., Petney, Trevor N., Blair, David, Carlton, Elizabeth J., Spear, Robert C., and Sithithaworn, Paiboon (2017) Preliminary genetic evidence of two different populations of Opisthorchis viverrini in Lao PDR. Parasitology Research, 116 (4). pp. 1247-1256.

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Abstract

Opisthorchis viverrini is a major public health concern in Southeast Asia. Various reports have suggested that this parasite may represent a species complex, with genetic structure in the region perhaps being dictated by geographical factors and different species of intermediate hosts. We used four microsatellite loci to analyze O. viverrini adult worms originating from six species of cyprinid fish in Thailand and Lao PDR. Two distinct O. viverrini populations were observed. In Ban Phai, Thailand, only one subgroup occurred, hosted by two different fish species. Both subgroups occurred in fish from That Luang, Lao PDR, but were represented to very different degrees among the fish hosts there. Our data suggest that, although geographical separation is more important than fish host specificity in influencing genetic structure, it is possible that two species of Opisthorchis, with little interbreeding, are present near Vientiane in Lao PDR.

Item ID: 50759
Item Type: Article (Refereed Research - C1)
Keywords: microsatellite DNA, Opisthorchis viverrini, population genetics, host factors, Cyprinid fish
ISSN: 1432-1955
Funders: Thailand Research Fund (TRF), Thailand Office of the Higher Education Commission (THEC), National Institutes of Health (NIH), Khon Kaen University (KKU), Deutsche Forschungsgemeinschaft (DFG)
Projects and Grants: TRF grant PHD/0210/2550, NIH R21AI104513, KKU Visiting International Professor Program, DFG grant PE1611/1-3
Date Deposited: 20 Sep 2017 11:41
FoR Codes: 06 BIOLOGICAL SCIENCES > 0605 Microbiology > 060503 Microbial Genetics @ 60%
11 MEDICAL AND HEALTH SCIENCES > 1108 Medical Microbiology > 110803 Medical Parasitology @ 40%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970111 Expanding Knowledge in the Medical and Health Sciences @ 100%
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