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Next Generation Sequencing uncovers within-host differences in the genetic diversity of Cryptosporidium gp60 subtypes
Journal article   Open access   Peer reviewed

Next Generation Sequencing uncovers within-host differences in the genetic diversity of Cryptosporidium gp60 subtypes

A. Zahedi, A.W. Gofton, F. Jian, A. Paparini, C. Oskam, A.J. Ball, I.D. Robertson and U. Ryan
International Journal for Parasitology, Vol.47(10-11), pp.601-607
2017
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Abstract

The extent of within-host genetic diversity of parasites has implications for our understanding of the epidemiology, disease severity and evolution of parasite virulence. As with many other species, our understanding of the within-host diversity of the enteric parasite Cryptosporidium is changing. The present study compared Sanger and Next Generation Sequencing of glycoprotein 60 (gp60) amplicons from Cryptosporidium hominis (n = 11), Cryptosporidium parvum (n = 22) and Cryptosporidium cuniculus (n = 8) DNA samples from Australia and China. Sanger sequencing identified only one gp60 subtype in each DNA sample: one C. hominis subtype (IbA10G2) (n = 11), four C. parvum subtypes belonging to IIa (n = 3) and IId (n = 19) and one C. cuniculus subtype (VbA23) (n = 8). Next Generation Sequencing identified the same subtypes initially identified by Sanger sequencing, but also identified additional gp60 subtypes in C. parvum and C. cuniculus but not in C. hominis, DNA samples. The number of C. parvum and C. cuniculus subtypes identified by Next Generation Sequencing within individual DNA samples ranged from two to four, and both C. parvum IIa and IId subtype families were identified within the one host in two samples. The finding of the present study has important implications for Cryptosporidium transmission tracking as well as vaccine and drug studies.

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Collaboration types
Domestic collaboration
International collaboration
Citation topics
1 Clinical & Life Sciences
1.246 Diarrheal Diseases
1.246.985 Cryptosporidium
Web Of Science research areas
Parasitology
ESI research areas
Microbiology
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