Genetic characterization of a total of 15 Giardia lamblia isolates, 8 from Anhui Province, China (all from purified cysts) and 7 from Seoul, Korea (2 from axenic cultures and 5 from purified cysts), was performed by polymerase chain reaction amplification and sequencing of a 295-bp region near the 5′ end of the small subunit ribosomal DNA (eukaryotic 16S rDNA). Phylogenetic analyses were subsequently conducted using sequence data obtained in this study, as well as sequences published from other Giardia isolates. The maximum parsimony method revealed that G. lamblia isolates from humans in China and Korea are divided into 2 major lineages, assemblages A and B. All 7 Korean isolates were grouped into assemblage A, whereas 4 Chinese isolates were grouped into assemblage A and 4 into assemblage B. Two Giardia microti isolates and 2 dog-derived Giardia isolates also grouped into assemblage B, whereas Giardia ardeae and Giardia muris were unique.
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August 2000
RESEARCH NOTES|
August 01 2000
Genotyping of Giardia lamblia Isolates from Humans in China and Korea Using Ribosomal DNA Sequences
T-S. Yong;
T-S. Yong
aDepartment of Parasitology and Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul 120-752, Korea
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S-J. Park;
S-J. Park
aDepartment of Parasitology and Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul 120-752, Korea
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U-W. Hwang;
U-W. Hwang
aDepartment of Parasitology and Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul 120-752, Korea
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H-W. Yang;
H-W. Yang
aDepartment of Parasitology and Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul 120-752, Korea
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K-W. Lee;
K-W. Lee
bDepartment of Clinical Pathology, Yonsei University College of Medicine, Seoul 120-752, Korea
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D-Y. Min;
D-Y. Min
cDepartment of Parasitology, Hanyang University College of Medicine, Seoul 133-791, Korea
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H-J. Rim;
H-J. Rim
dKorea Association of Health, Seoul 157-016, Korea
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Y. Wang;
Y. Wang
eAnhui Provincial Institute for Parasitic Diseases, Wuhu, Anhui, P.R. China
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F. Zheng
F. Zheng
fInstitute of Parasitic Diseases, Shanghai 200025, P.R. China
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J Parasitol (2000) 86 (4): 887–891.
Citation
T-S. Yong, S-J. Park, U-W. Hwang, H-W. Yang, K-W. Lee, D-Y. Min, H-J. Rim, Y. Wang, F. Zheng; Genotyping of Giardia lamblia Isolates from Humans in China and Korea Using Ribosomal DNA Sequences. J Parasitol 1 August 2000; 86 (4): 887–891. doi: https://doi.org/10.1645/0022-3395(2000)086[0887:GOGLIF]2.0.CO;2
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