Detection, discrimination and quantitation of 22 bluetongue virus serotypes using real-time RT-PCR with TaqMan MGB probes

Detection, discrimination and quantitation of 22 bluetongue virus serotypes using real-time... Bluetongue virus (BTV) is the etiological agent of bluetongue (BT) disease, a noncontagious insect-transmitted disease of international importance. To date, 26 BTV serotypes have been recognized worldwide. Methods to discriminate BTV serotypes in clinical samples are essential to epidemiological surveillance efforts and BTV vaccination programs. The BTV VP2 major outer capsid protein, encoded by genomic segment 2 (Seg-2), is the most highly variable BTV protein and is the primary determinant of the virus serotype. Here, we report the development of rapid and reliable real-time RT-PCR assays to detect and discriminate 22 BTV serotypes on the basis of VP2-encoding genomic sequences. Serotype-specific primers and probes detected only the targeted BTV serotype and displayed no cross-amplification of off-target BTV serotypes or other closely related Reoviridae and Bunyaviridae family members. The real-time RT-PCR assays developed were highly sensitive, and the majority of serotype-specific reactions could detect template when present at ≥10 copies. These BTV serotype-specific real-time RT-PCR assays represent a rapid, sensitive, and reliable method for the identification, differentiation and quantification of 22 BTV serotypes. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Detection, discrimination and quantitation of 22 bluetongue virus serotypes using real-time RT-PCR with TaqMan MGB probes

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Publisher
Springer Vienna
Copyright
Copyright © 2015 by Springer-Verlag Wien
Subject
Biomedicine; Virology; Medical Microbiology; Infectious Diseases
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-015-2499-7
Publisher site
See Article on Publisher Site

Abstract

Bluetongue virus (BTV) is the etiological agent of bluetongue (BT) disease, a noncontagious insect-transmitted disease of international importance. To date, 26 BTV serotypes have been recognized worldwide. Methods to discriminate BTV serotypes in clinical samples are essential to epidemiological surveillance efforts and BTV vaccination programs. The BTV VP2 major outer capsid protein, encoded by genomic segment 2 (Seg-2), is the most highly variable BTV protein and is the primary determinant of the virus serotype. Here, we report the development of rapid and reliable real-time RT-PCR assays to detect and discriminate 22 BTV serotypes on the basis of VP2-encoding genomic sequences. Serotype-specific primers and probes detected only the targeted BTV serotype and displayed no cross-amplification of off-target BTV serotypes or other closely related Reoviridae and Bunyaviridae family members. The real-time RT-PCR assays developed were highly sensitive, and the majority of serotype-specific reactions could detect template when present at ≥10 copies. These BTV serotype-specific real-time RT-PCR assays represent a rapid, sensitive, and reliable method for the identification, differentiation and quantification of 22 BTV serotypes.

Journal

Archives of VirologySpringer Journals

Published: Jun 27, 2015

References

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