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

Autor: Hayashi EAI; Laboratório de Fitovirologia, Departamento de Agronomia, Universidade Federal Rural de Pernambuco, Recife, PE, CEP 52171-900, Brazil., Blawid R; Laboratório de Microscopia Eletrônica, Departamento de Biologia Celular, Universidade de Brasília, Brasília, DF, CEP 70910-900, Brazil., de Melo FL; Laboratório de Microscopia Eletrônica, Departamento de Biologia Celular, Universidade de Brasília, Brasília, DF, CEP 70910-900, Brazil., Andrade MS; Laboratório de Microscopia Eletrônica, Departamento de Biologia Celular, Universidade de Brasília, Brasília, DF, CEP 70910-900, Brazil., Pio-Ribeiro G; Laboratório de Fitovirologia, Departamento de Agronomia, Universidade Federal Rural de Pernambuco, Recife, PE, CEP 52171-900, Brazil., de Andrade GP; Laboratório de Fitovirologia, Departamento de Agronomia, Universidade Federal Rural de Pernambuco, Recife, PE, CEP 52171-900, Brazil., Nagata T; Laboratório de Microscopia Eletrônica, Departamento de Biologia Celular, Universidade de Brasília, Brasília, DF, CEP 70910-900, Brazil. tatsuya@unb.br.
Jazyk: angličtina
Zdroj: Archives of virology [Arch Virol] 2017 Jan; Vol. 162 (1), pp. 317-319. Date of Electronic Publication: 2016 Oct 11.
DOI: 10.1007/s00705-016-3104-4
Abstrakt: 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.
Databáze: MEDLINE
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