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01-02-2017 | Brief Report

The genome sequence of Dioscorea bacilliform TR virus, a member of the genus Badnavirus infecting Dioscorea spp., sheds light on the possible function of endogenous Dioscorea bacilliform viruses

Authors: Marie Umber, Rose-Marie Gomez, Suzia Gélabale, Lydiane Bonheur, Claudie Pavis, Pierre-Yves Teycheney

Published in: Archives of Virology | Issue 2/2017

Abstract

The complete genome sequence of Dioscorea bacilliform TR virus (DBTRV) was determined. The closest relatives of DBTRV are Dioscorea bacilliform AL virus (DBALV) and Dioscorea bacilliform RT virus 1 (DBRTV1). Specific primers were designed and used to determine the prevalence of DBTRV in a yam germplasm collection. It was found that this virus infects Dioscorea alata and D. trifida plants in Guadeloupe and French Guyana. DTRBV was not detected in any of the tested D. cayenensis-rotundata accessions. In silico analysis provided evidence for the presence of DBTRV-like endogenous sequences in the genome of D. cayenensis-rotundata, pointing to a possible role of these sequences in antiviral defense.

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Title: The genome sequence of Dioscorea bacilliform TR virus, a member of the genus Badnavirus infecting Dioscorea spp., sheds light on the possible function of endogenous Dioscorea bacilliform viruses
Authors: Marie Umber
Rose-Marie Gomez
Suzia Gélabale
Lydiane Bonheur
Claudie Pavis
Pierre-Yves Teycheney
Publication date: 01-02-2017
Publisher: Springer Vienna
Published in: Archives of Virology / Issue 2/2017
Print ISSN: 0304-8608
Electronic ISSN: 1432-8798
DOI: https://doi.org/10.1007/s00705-016-3113-3

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