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Coat protein sequence comparisons of three Mexican isolates of papaya ringspot virus with other geographical isolates reveal a close relationship to American and Australian isolates

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Summary.

 The coat protein gene of the papaya ringspot virus was cloned and sequenced in three Mexican isolates (two from Veracruz, and one from Chiapas). The sequences of these viral isolates were compared to those of eleven isolates from other parts of the world. They had higher similarity to isolates from Australia and the United States than to Asian isolates. A region of about one hundred nucleotides neighboring the putative aphid transmission triplet of the coat protein, contained repeats of an EK (glutamic acid-lysine) motif in all the sequences. The bearing of this region on the genetic relationships and geographical distribution of the isolates is analyzed and discussed.

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Authors and Affiliations

  1.  Centro de Investigación y de Estudios Avanzados del IPN, Unidad Irapuato, Irapuato, Mexico, , , , , , MX

    L. Silva-Rosales, S. Ruiz-Castro & J. C. Noa-Carrazana

  2.  Campo Experimental Cotaxtla, INIFAP, Veracruz, Mexico, , , , , , MX

    N. Becerra-Leor

  3.  Centro de Fitopatología, Colegio de Postgraduados, Montecillos, Mexico, , , , , , MX

    D. Téliz-Ortiz

Authors
  1. L. Silva-Rosales
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  2. N. Becerra-Leor
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  3. S. Ruiz-Castro
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  4. D. Téliz-Ortiz
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  5. J. C. Noa-Carrazana
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Received April 26, 1999/Accepted September 23, 1999

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Silva-Rosales, L., Becerra-Leor, N., Ruiz-Castro, S. et al. Coat protein sequence comparisons of three Mexican isolates of papaya ringspot virus with other geographical isolates reveal a close relationship to American and Australian isolates. Arch. Virol. 145, 835–843 (2000). https://doi.org/10.1007/s007050050676

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  • DOI: https://doi.org/10.1007/s007050050676

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