Complete genome sequence of yam chlorotic necrosis virus, a novel macluravirus infecting yam

The complete genome sequence of a novel member of the genus Macluravirus was determined from yam plants with chlorotic and necrotic symptoms in China. The genomic RNA consists of 8,261 nucleotides (nt) excluding the 3’-terminal poly(A) tail, containing one long open reading frame (ORF) encoding a la...

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Bibliographic Details
Published in:Archives of virology 2018-08, Vol.163 (8), p.2275-2278
Main Authors: Lan, Pingxiu, Meng, Yu, Shen, Pan, Li, Ruhui, Ma, Yan, Tan, Songtao, Chen, Hairu, Cao, Mengji, Li, Fan
Format: Article
Language:English
Subjects:
Annotated Sequence Record
Biomedical and Life Sciences
Biomedicine
Gangrene
Genomes
Infectious Diseases
Medical Microbiology
Necrosis
Nucleotide sequence
Nucleotides
p1 Protein
Phylogeny
Polyadenine
Polyadenylation
Ribonucleic acid
RNA
Virology
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Summary:The complete genome sequence of a novel member of the genus Macluravirus was determined from yam plants with chlorotic and necrotic symptoms in China. The genomic RNA consists of 8,261 nucleotides (nt) excluding the 3’-terminal poly(A) tail, containing one long open reading frame (ORF) encoding a large putative polyprotein of 2,627 amino acids. Its genomic structure is typical of macluraviruses, which lack the P1 protein, N-terminal HC-Pro, and D-A-G motif for aphid transmission that are found in potyviruses. The virus shares 56.3-63.8% sequence identity at the genome sequence level and 49.7-63.9% at the polyprotein sequence level with other members of the genus Macluravirus . Phylogenetic analysis based on the complete polyprotein sequence of representative members of the family Potyviridae clearly places the virus within the genus Macluravirus . These results suggest that the virus, tentatively named “yam chlorotic necrosis virus” (YCNV), should be considered a member of a novel species in the genus Macluravirus .
ISSN:0304-8608
1432-8798
DOI:10.1007/s00705-018-3851-5