Molecular characterization of two badnavirus genomes associated with Canna yellow mottle disease
Autor: | Bruce L. Dunn, Hannah Jones, Dulanjani Wijayasekara, Aastha Thapa, Peter R. Hoyt, Jeanmarie Verchot, Austin Gimondo |
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Rok vydání: | 2017 |
Předmět: |
0301 basic medicine
Cancer Research viruses Genome Viral 03 medical and health sciences Open Reading Frames Viral Proteins Virology Plant virus medicine Banana streak virus Badnavirus Phylogeny Plant Diseases biology Canna Potyvirus Genetic Variation Musa medicine.disease biology.organism_classification 030104 developmental biology Infectious Diseases Banana streak MY virus Mottle Caulimoviridae |
Zdroj: | Virus research. 243 |
ISSN: | 1872-7492 |
Popis: | Members of the genus Badnavirus have a single non-covalently closed circular double-stranded DNA genome of 7.2-9.2kb. The genome encodes three open reading frames (ORFs) on the positive DNA strand. Canna yellow mottle virus (CaYMV) is a badnavirus that has been described as the etiological cause of yellow mottle disease in canna, although only a 565bp fragment of the genome has been previously reported from cannas. In this report, concentrated virions were recovered from infected canna plants and nucleic acids were extracted. Two full-length sequences represent two badnavirus genomes were recovered and were determined to be 6966bp and 7385bp in length. These DNAs represent a virus strain belonging to Canna yellow mottle virus and a novel species tentatively termed Canna yellow mottle associated virus. Phylogenetic analysis indicates that these two viruses are closely related to sugarcane bacilliform GD virus, pineapple bacilliform comosus virus, banana streak MY virus, and cycad leaf necrosis virus. We also showed naturally grown canna plants to be frequently co-infected by these two badnaviruses along with a potyvirus, Canna yellow streak virus. |
Databáze: | OpenAIRE |
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