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Sequence diversity in the coat protein coding region of twelve sugarcane mosaic potyvirus isolates from Australia, USA and South Africa

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Summary

We have sequenced the coat protein (CP) coding region of 11 field isolates of SCMV from Australia, USA and South Africa. The differences between the nucleotide sequences of the isolates was 0.2 to 4.1% and the encoded amino acid sequences differed by 0.0 to 3.5%. Phylogenetic analysis of the CP coding sequences of the SCMV isolates and the related potyviruses SCMV-MDB, JGMV, SrMV, MDMV-A and PVY showed that the SCMV isolates formed a tightly clustered group, with SCMV-MDB forming a separate branch. This indicated that (i) the SCMV isolates are of one strain (SCMV-A) and not geographically distinct species and (ii) SCMV-MDB is clearly distinct, and may represent another potyvirus species.

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Authors and Affiliations

  1. Centre for Molecular Biotechnology, School of Life Sciences, Queensland University of Technology, Brisbane, Queensland, Australia, Australia

    J. A. Handley, J. L. Dale & R. M. Harding

  2. David North Plant Research Centre, Bureau of Sugar Experiment Stations, Indooroopilly, Queensland, Australia, Australia

    G. R. Smith

Authors
  1. J. A. Handley
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  2. G. R. Smith
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  3. J. L. Dale
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  4. R. M. Harding
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Received March 7, 1997 Accepted January 16, 1998

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Handley, J.A., Smith, G.R., Dale, J.L. et al. Sequence diversity in the coat protein coding region of twelve sugarcane mosaic potyvirus isolates from Australia, USA and South Africa. Arch. Virol. 143, 1145–1153 (1998). https://doi.org/10.1007/s007050050362

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  • DOI: https://doi.org/10.1007/s007050050362

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