Archives of Virology

, Volume 159, Issue 11, pp 3059–3062

Simultaneous detection of groundnut rosette assistor virus (GRAV), groundnut rosette virus (GRV) and satellite RNA (satRNA) in groundnuts using multiplex RT-PCR

Brief Report

DOI: 10.1007/s00705-014-2139-7

Cite this article as:
Anitha, S., Monyo, E.S. & Okori, P. Arch Virol (2014) 159: 3059. doi:10.1007/s00705-014-2139-7

Abstract

Groundnut rosette disease (GRD) is the most devastating disease of groundnuts in sub-Saharan Africa. The disease is caused by synergistic interactions between viruses and virus-like pathogens: groundnut rosette assistor virus (GRAV), groundnut rosette virus (GRV) and a satellite RNA (satRNA). The multi-pathogenic nature of GRD requires efficient diagnostic systems for plant breeding and pathology work. Currently, TAS-ELISA and RT-PCR are used to detect all three pathogens. This approach is time-consuming, expensive and not easily amenable to high throughput. A multiplex PCR-based approach was developed to detect all three pathogens at once, reducing diagnostics costs and time by two thirds. The technique is highly robust and amenable to high throughput, with sensitivity and specificity values of 88 % and 100 %, respectively. The positive predictive value for the technique is 100 %, and the negative predictive value is 90.6 %.

Keywords

Groundnut rosette disease Two-step multiplex RT-PCR Two-step RT-PCR 

Copyright information

© Springer-Verlag Wien 2014

Authors and Affiliations

  1. 1.International Crops Research Institute for the Semi-Arid Tropics (ICRISAT)LilongweMalawi
  2. 2.International Crops Research Institute for the Semi-Arid Tropics (ICRISAT)NairobiKenya