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Open Access 01-02-2018 | Brief Report

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

Authors: Moritz Bömer, Ajith I. Rathnayake, Paul Visendi, Gonçalo Silva, Susan E. Seal

Published in: Archives of Virology | Issue 2/2018

Abstract

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.

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Title: 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
Authors: Moritz Bömer
Ajith I. Rathnayake
Paul Visendi
Gonçalo Silva
Susan E. Seal
Publication date: 01-02-2018
Publisher: Springer Vienna
Published in: Archives of Virology / Issue 2/2018
Print ISSN: 0304-8608
Electronic ISSN: 1432-8798
DOI: https://doi.org/10.1007/s00705-017-3605-9

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