Home Acta Virologica 2013 Acta Virologica Vol.57, No.3, p.369-372, 2013

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Founded: 1957
ISSN 0001-723X
E-ISSN 1336-2305

Published in English

Impact Factor = 1.82

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Acta Virologica Vol.57, No.3, p.369-372, 2013

Title: Plum pox virus accumulates mutations in different genome parts during a long-term maintenance in Prunus host plants and passage in Nicotiana benthamiana

Abstract: Plum pox virus (PPV) isolates of the strain PPV-M prevalently infect peaches under natural conditions in Middle Europe. Comparison of complete genome sequences obtained from subisolates of a PPV-M isolate maintained experimentally over a 6-year period in different Prunus host species and passaged in Nicotiana benthamiana was performed with the aim to highlight the mutations potentially connected with the virus-host adaptation. The results showed that the lowest number of non-silent mutations was accumulated in PPV-M maintained in peach (original host species), approximately two times higher diversity was recorded in plum, apricot and N. benthamiana, indicating the genetic determination of the PPV host preference. The sequence variability of Prunus subisolates was distributed more or less evenly along the PPV genome and no amino acid motif could be outlined as responsible for the host adaptation. In N. benthamiana the mutations were accumulated notably in the P1 and P3 genes indicating their non-essentiality in the infection of this experimental host plant.

Keywords: sharka; host adaptation; mutation; evolution
Year: 2013, Volume: 57, Issue: 3 Page From: 369, Page To: 372
Price: 9.60 €

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