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Complete genome sequence of a novel polerovirus in Ornithogalum thyrsoides from South Africa

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Abstract

Ornithogalum thyrsoides, commonly known as chincherinchee, is an indigenous ornamental plant widely cultivated in South Africa. It is commercially valued as a flowering pot plant and for the production of cut flowers. Virus infections resulting in the development of severe necrotic mosaic symptoms threaten the success of commercial cultivation. The virome of an O. thyrsoides plant displaying necrotic mosaic symptoms was determined using high-throughput sequencing (HTS). In this plant, ornithogalum mosaic virus and ornithogalum virus 3 were identified, as well as a previously unknown virus. The full genome sequence of this virus was confirmed by Sanger sequencing using overlapping amplicons combined with rapid amplification of cDNA ends (RACE). Based on genome organisation and phylogenetic analysis, this novel virus can be classified as a polerovirus.

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Acknowledgements

Mnr Kenneth Mabasa (ARC-VOP) performed initial confirmatory RT-PCR virus diagnostics.

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Authors and Affiliations

  1. Department of Genetics, Stellenbosch University, Stellenbosch, South Africa

    I. Mostert, M. Visser, J. T. Burger & H. J. Maree

  2. Agricultural Research Council-Roodeplaat Vegetable and Ornamental Plants, Pretoria, South Africa

    I. Gazendam & M. Cloete

  3. Citrus Research International, Stellenbosch, South Africa

    H. J. Maree

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  1. I. Mostert
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  2. M. Visser
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  3. I. Gazendam
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  4. M. Cloete
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  5. J. T. Burger
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  6. H. J. Maree
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Correspondence to H. J. Maree.

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Mostert, I., Visser, M., Gazendam, I. et al. Complete genome sequence of a novel polerovirus in Ornithogalum thyrsoides from South Africa. Arch Virol 165, 483–486 (2020). https://doi.org/10.1007/s00705-019-04472-x

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  • DOI: https://doi.org/10.1007/s00705-019-04472-x

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