Summary
Two strains of whitefly-transmitted cowpea mild mottle virus (CPMMV) causing severe (CPMMV-S) and mild (CPMMV-M) disease symptoms in peanuts were collected from two distinct agro-ecological zones in India. The host-range of these strains was restricted to Leguminosae and Chenopodiaceae, and each could be distinguished on the basis of symptoms incited in different hosts. The 3′-terminal 2500 nucleotide sequence of the genomic RNA of both the strains was 70% identical and contains five open reading frames (ORFs). The first three (P25, P12 and P7) overlap to form a triple gene block of proteins, P32 encodes the coat protein, followed by P12 protein located at the 3′ end of the genome. Genome organization and pair-wise comparisons of amino acid sequences of proteins encoded by these ORFs with corresponding proteins of known carlaviruses and potexviruses suggest that CPMMV-S and CPMMV-M are closely related to viruses in the genus Carlavirus. Based on the data, it is concluded that CPMMV is a distinct species in the genus Carlavirus.
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Accepted October 7, 1997 Received February 13, 1997
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Naidu, R.A., Gowda, S., Satyanarayana, T. et al. Evidence that whitefly-transmitted cowpea mild mottle virus belongs to the genus Carlavirus. Arch. Virol. 143, 769–780 (1998). https://doi.org/10.1007/s007050050328
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DOI: https://doi.org/10.1007/s007050050328