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Complete genome sequence of a putative new secovirus infecting yam (Dioscorea) plants

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Abstract

The complete genome sequence of a new virus infecting yam plants exhibiting mosaic symptom in Brazil was determined. The genome of this virus is composed of two molecules of positive-sense RNAs of 5979 and 3809 nucleotides in length, excluding the poly(A) tails. One large open reading frame (ORF) in each genomic segment (RNA1-ORF1 and RNA2-ORF2) was predicted. The highest amino acid sequence similarity in the Pro-Pol core region of RNA1 and the CP region of RNA2 was observed with chocolate lily virus A (a putative member of the family Secoviridae), with 54.6 and 27.7 % identity, respectively. This virus is thus likely to be a new member of the family Secoviridae, and we propose the tentative name “dioscorea mosaic-associated virus” (DMaV) for this virus.

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Acknowledgments

TN is a research fellow of CNPq (Brazilian Council for Scientific and Technological Development).

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Authors and Affiliations

  1. Laboratório de Fitovirologia, Departamento de Agronomia, Universidade Federal Rural de Pernambuco, Recife, PE, CEP 52171-900, Brazil

    Evelyn Anly Ishikawa Hayashi, Gilvan Pio-Ribeiro & Genira Pereira de Andrade

  2. Laboratório de Microscopia Eletrônica, Departamento de Biologia Celular, Universidade de Brasília, Brasília, DF, CEP 70910-900, Brazil

    Rosana Blawid, Fernando Lucas de Melo, Miguel Souza Andrade & Tatsuya Nagata

Authors
  1. Evelyn Anly Ishikawa Hayashi
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  2. Rosana Blawid
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  3. Fernando Lucas de Melo
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  4. Miguel Souza Andrade
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  5. Gilvan Pio-Ribeiro
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  6. Genira Pereira de Andrade
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  7. Tatsuya Nagata
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Correspondence to Tatsuya Nagata.

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Hayashi, E.A.I., Blawid, R., de Melo, F.L. et al. Complete genome sequence of a putative new secovirus infecting yam (Dioscorea) plants. Arch Virol 162, 317–319 (2017). https://doi.org/10.1007/s00705-016-3104-4

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  • DOI: https://doi.org/10.1007/s00705-016-3104-4

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