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

Collection Location Koleksi E-book & E-Journal Perpustakaan Pusat Unila
Edition Vol. 163, Issue 2
Call Number
ISBN/ISSN 14328798
Author(s) Bomer, Moritz...[et al.]
Subject(s) Biomedicine
Classification NONE
Series Title
GMD E-Journal
Language English
Publisher Springer
Publishing Year 2018
Publishing Place Switzerland
Abstract/Notes 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.
Keywords Yam · Dioscorea spp. · Dioscorea rotundata ·
Episomal badnavirus · Endogenous Dioscorea bacilliform
virus · Complete genome · Recombination · Phylogeny ·
West Africa
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