Published in:
01-07-2020 | Polymerase Chain Reaction | Brief Report
A new begomovirus isolated from a potyvirus-infected bean plant causes asymptomatic infections in bean and N. benthamiana
Authors:
Nadia Martínez-Marrero, Jesús Aarón Avalos-Calleros, Elizabeth Chiquito-Almanza, Jorge Alberto Acosta-Gallegos, Salvador Ambriz-Granados, José Luis Anaya-López, Gerardo Rafael Argüello-Astorga
Published in:
Archives of Virology
|
Issue 7/2020
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Abstract
In this work, a begomovirus isolated from a bean plant coinfected with the potyviruses bean common mosaic virus and bean common mosaic necrosis virus was characterized. The three viruses were detected by high-throughput sequencing and assembly of total small RNAs, but the begomovirus-related contigs did not allow precise identification. Molecular analysis based on standard DNA amplification techniques revealed the presence of a single bipartite virus, which is a novel begomovirus according to the current taxonomic criteria. Infectious clones were generated and agroinoculated into Phaseolus vulgaris and Nicotiana benthamiana plants. In all cases, viral DNA-A and DNA-B were detected in new growths, but no symptoms were observed, thus indicating that this virus produces asymptomatic infections in both host species.