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. 2008 Dec;46(4):235-41.
doi: 10.3347/kjp.2008.46.4.235. Epub 2008 Dec 20.

Sympatric distribution of three human Taenia tapeworms collected between 1935 and 2005 in Korea

Hyeong-Kyu Jeon  1 , Kyu-Heon Kim, Jong-Yil Chai, Hyun-Jong Yang, Han-Jong Rim, Keeseon S Eom
Affiliations

Sympatric distribution of three human Taenia tapeworms collected between 1935 and 2005 in Korea

Hyeong-Kyu Jeon et al. Korean J Parasitol. 2008 Dec.

Erratum in

  • Korean J Parasitol. 2009 Mar;47(1):78

Abstract

Taeniasis has been known as one of the prevalent parasitic infections in Korea. Until recently, Taenia saginata had long been considered a dominant, and widely distributed species but epidemiological profiles of human Taenia species in Korea still remain unclear. In order to better understand distribution patterns of human Taenia tapeworms in Korea, partial nucleotide sequences of mitochondrial cox1 and ITS2 (internal transcribed spacer 2) were determined, along with morphological examinations, on 68 Taenia specimens obtained from university museum collections deposited since 1935. Genomic DNA was extracted from formalin-preserved specimens. Phylogenetic relationships among the genotypes (cox1 haplotype) detected in this study were inferred using the neighbor-joining method as a tree building method. Morphological and genetic analyses identified 3 specimens as T. solium, 51 specimens as T. asiatica, and 14 specimens as T. saginata. Our results indicate that all 3 Taenia tapeworms are sympatrically distributed in Korea with T. asiatica dominating over T. saginata and T. solium.

Keywords: T. asiatica; T. saginata; Taenia solium; molecular identification; sympatric distribution.

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Figures

Fig. 1
Fig. 1
Sequence alignment of ITS2 regions of human Taenia tapeworms. Dot (.) indicates identical nucleotide sequence to T. asiatica. Gap (-) was introduced for maximum alignments.
Fig. 2
Fig. 2
Phyloge- netic trees of human Taenia tapeworms based on partial cox1 sequences in-ferred from neighbor-joining (NJ), maximum parsimony (MP), and minimum evolution (ME) analyses. Numbers on branches indicate the bootstrap supporting values.
Fig. 3
Fig. 3
Species composition and spatial distribution of human infecting Taenia tapeworms in Korea.
See this image and copyright information in PMC

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