• High genetic diversity in the coat protein and 3′ untranslated regions among geographical isolates ofCardamom mosaic virus from south India

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    • Keywords


      Cardamom mosaic virus ; coat protein; genetic diversity; geographical isolates

    • Abstract


      A survey was conducted to study the biological and genetic diversity ofCardamom mosaic virus (CdMV) that causes the most widespread disease in the cardamom growing area in the Western Ghats of south India. Six distinct subgroups were derived based on their symptomatology and host range from the sixty isolates collected. The serological variability between the virus isolates was analysed by ELISA and Western blotting. The 3′ terminal region consisting of the coat protein (CP) coding sequence and 3′ untranslated region (3′UTR) was cloned and sequenced from seven isolates. Sequence comparisons revealed considerable genetic diversity among the isolates in their CP and 3′UTR, making CdMV one of the highly variable members ofPotyviridae. The possible occurrence of recombination between the isolates and the movement of the virus in the cardamom tract of south India are discussed.

    • Author Affiliations


      T Jacob1 T Jebasingh1 M N Venugopal1 2 R Usha1

      1. Department of Plant Biotechnology, School of Biotechnology, Madurai Kamaraj University, Madurai - 625 021, India
      2. Indian Institute of Spices Research, Appangala - 571 201, India
    • Dates

  • Journal of Biosciences | News

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      Posted on July 25, 2019

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