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Author Zhang, Ping ♦ Liu, Yuanjia ♦ Alsarakibi, Muhamd ♦ Li, Jie ♦ Liu, Tian ♦ Li, Yawen ♦ Li, Guoqing
Source SpringerLink
Content type Text
Publisher Springer-Verlag
File Format PDF
Copyright Year ©2012
Language English
Subject Domain (in DDC) Technology ♦ Medicine & health
Subject Keyword Immunology ♦ Microbiology ♦ Medical Microbiology
Abstract A high-resolution melting (HRM) assay was applied to distinguish between Giardia duodenalis assemblages A and B from human and dog feces based on the triosephosphate isomerase gene (tpi). The genomic DNAs were selected from assemblages A (WB) and B (GS) as reference and plasmids were constructed. The reference plasmids and genomic DNAs from 15 Giardia-positive samples were analyzed by HRM assay. This was followed by separate real-time PCR assays specific for assemblages A and B using EvaGreen (EG) to identify PCR products by melting-point analysis. Our results indicate that PCR with HRM in a one-step closed-tube method is a reliable diagnostic method for G. duodenalis zoonotic assemblage identification and more rapid than restriction length polymorphism analysis and direct sequence analysis, HRM is specific, sensitive, reproducible, and rapid. This study is the first use of EG dye for Giardia genotyping. This assay is a promising approach to determine the presence and genotype of Giardia based on a highly variable gene.
ISSN 09320113
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2012-08-11
Publisher Place Berlin/Heidelberg
e-ISSN 14321955
Journal Parasitology Research
Volume Number 111
Issue Number 5
Page Count 7
Starting Page 2157
Ending Page 2163


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Source: SpringerLink