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Molecular identification and biological characterization of a new potyvirus in lettuce

Author:
Ciuffo, Marina, Mammella, Marco, Vallino, Marta, Caciagli, Piero, Turina, Massimo
Source:
Archives of virology 2016 v.161 no.9 pp. 2549-2554
ISSN:
0304-8608
Subject:
Asparagus virus 1, Chenopodium quinoa, Lactuca sativa, Myzus persicae, amino acid sequences, cultivars, genome, host range, leaves, lettuce, necrosis, new species, polyproteins, sequence analysis, viruses, Italy
Abstract:
A potyvirus causing necrosis and leaf distortion on lettuce was found in the Lazio region of Italy. Host range analysis showed its ability to infect only Chenopodium quinoa and C. amaranticolor in addition to some lettuce cultivars. The virus could be transmitted by aphids of the species Myzus persicae. The complete 9829-nt genome was characterized. BLAST analysis of sequence of the complete encoded polyprotein showed that the most closely related virus is asparagus virus 1, with 52 % amino acid sequence identity. These results suggest that this virus should be considered a member of a new species in the genus Potyvirus.
Agid:
5483961