Genome-wide characterization of microsatellites and marker development in the carcinogenic liver fluke Clonorchis sinensis (original) (raw)

Abstract

Clonorchis sinensis is an important carcinogenic human liver fluke endemic in East and Southeast Asia. There are several conventional molecular markers that have been used for identification and genetic diversity; however, no information about microsatellites of this liver fluke is published so far. We here report microsatellite characterization and marker development for a genetic diversity study in C. sinensis, using a genome-wide bioinformatics approach. Based on our search criteria, a total of 256,990 microsatellites (≥12 base pairs) were identified from a genome database of C. sinensis, with hexanucleotide motif being the most abundant (51 %) followed by pentanucleotide (18.3 %) and trinucleotide (12.7 %). The tetranucleotide, dinucleotide, and mononucleotide motifs accounted for 9.75, 7.63, and 0.14 %, respectively. The total length of all microsatellites accounts for 0. 72 % of 547 Mb of the whole genome size, and the frequency of microsatellites was found to be one microsatellite in every 2.13 kb of DNA. For the di-, tri-, and tetranucleotide, the repeat numbers redundant are six (28 %), four (45 %), and three (76 %), respectively. The ATC repeat is the most abundant microsatellites followed by AT, AAT, and AC, respectively. Within 40 microsatellite loci developed, 24 microsatellite markers showed potential to differentiate between C. sinensis and Opisthorchis viverrini. Seven out of 24 loci showed to be heterozygous with observed heterozygosity that ranged from 0.467 to 1. Four primer sets could amplify both C. sinensis and O. viverrini DNA with different sizes. This study provides basic information of C. sinensis microsatellites, and the genome-wide markers developed may be a useful tool for the genetic study of C. sinensis.

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Acknowledgments

This work was supported by the Higher Education Research Promotion and National Research University Project of Thailand, Office of the Higher Education Commission, through the Health Cluster (SHeP-GMS), Khon Kaen University, Thailand; the Thailand Research Fund (TRF); the National Institute of Allergy and Infectious Diseases (NIAID), award number P50AI098639; and the United States Army Medical Research and Materiel Command (USAMRMC), contract number W81XWH-12-C-0267. NBT is supported by the Faculty of Medicine, Khon Kaen University scholarship. BS is a Senior TRF Scholar. The content is solely the responsibility of the authors and does not necessarily represent the official views of the USAMRMC, NIAID, or the NIH or the funders.

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Authors and Affiliations

  1. WHO Collaborating Centre for Research and Control of Opisthorchiasis (Southeast Asian Liver Fluke Disease), Tropical Disease Research Laboratory, Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
    Thao T. B. Nguyen, Yuji Arimatsu & Banchob Sripa
  2. Center for Public Health & Ecosystem Research, Hanoi School of Public Health, 138 GiangVo St., BaDinh, Hanoi, Vietnam
    Thao T. B. Nguyen
  3. Department of Medical Environmental Biology, Chung-Ang University College of Medicine, Dongjak-gu, Seoul, 156-756, Republic of Korea
    Sung-Jong Hong
  4. Department of Microbiology, Immunology & Tropical Medicine, George Washington University Medical Center, 2300 Eye Street, NW, Washington, DC, 20037, USA
    Paul J. Brindley
  5. School of Marine and Tropical Biology, James Cook University, Townsville, Queensland, 4811, Australia
    David Blair
  6. Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
    Thewarach Laha

Authors

  1. Thao T. B. Nguyen
  2. Yuji Arimatsu
  3. Sung-Jong Hong
  4. Paul J. Brindley
  5. David Blair
  6. Thewarach Laha
  7. Banchob Sripa

Corresponding author

Correspondence toBanchob Sripa.

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Nguyen, T.T.B., Arimatsu, Y., Hong, SJ. et al. Genome-wide characterization of microsatellites and marker development in the carcinogenic liver fluke Clonorchis sinensis .Parasitol Res 114, 2263–2272 (2015). https://doi.org/10.1007/s00436-015-4419-x

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