Complete genome sequence of a new member of the genus Badnavirus, Dioscorea bacilliform RT virus 3, reveals the first evidence of recombination in yam badnaviruses

Yams ( Dioscorea spp.) host a diverse range of badnaviruses (genus Badnavirus , family Caulimoviridae ). The first complete genome sequence of Dioscorea bacilliform RT virus 3 (DBRTV3), which belongs to the monophyletic species group K5, is described. This virus is most closely related to Dioscorea...

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Bibliographic Details
Published in:Archives of virology 2018-02, Vol.163 (2), p.533-538
Main Authors: Bömer, Moritz, Rathnayake, Ajith I., Visendi, Paul, Silva, Gonçalo, Seal, Susan E.
Format: Article
Language:English
Subjects:
Badnavirus - classification
Badnavirus - genetics
Badnavirus - isolation & purification
Base Sequence
Biomedical and Life Sciences
Biomedicine
Brief Report
Dioscorea
Dioscorea - virology
Genetic Variation
Genome, Viral
Genomes
Infectious Diseases
Medical Microbiology
Molecular Sequence Data
Nucleotide sequence
Phylogeny
Plant Diseases - virology
Recombination
Recombination, Genetic
Virology
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Summary:Yams ( Dioscorea spp.) host a diverse range of badnaviruses (genus Badnavirus , family Caulimoviridae ). The first complete genome sequence of Dioscorea bacilliform RT virus 3 (DBRTV3), which belongs to the monophyletic species group K5, is described. This virus is most closely related to Dioscorea bacilliform SN virus (DBSNV, group K4) based on a comparison of genome sequences. Recombination analysis identified a unique recombination event in DBRTV3, with DBSNV likely to be the major parent and Dioscorea bacilliform AL virus (DBALV) the minor parent, providing the first evidence for recombination in yam badnaviruses. This has important implications for yam breeding programmes globally.
ISSN:0304-8608
1432-8798
DOI:10.1007/s00705-017-3605-9