A possible scenario for the evolution of Banana streak virus in banana
| Autor: | Matthieu Chabannes, Emmanuelle Muller, Marie-Line Iskra-Caruana, Pierre-Olivier Duroy |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Cancer Research
Phylogénie Virus Integration Context (language use) Évolution Genome Viral Biology Variation génétique Virology Plant virus Polyphyly Banana streak virus Dynamique des populations Badnavirus Clade Phylogeny Plant Diseases H20 - Maladies des plantes Molecular Epidemiology Molecular epidemiology Genetic Variation Outbreak food and beverages Musa Virus des végétaux Africa Eastern biology.organism_classification Biological Evolution Épidémiologie Phylogeography Infectious Diseases Host-Pathogen Interactions Genome Plant |
| Zdroj: | Building bridges between disciplines for sustainable management of plant virus diseases Virus Research |
| Popis: | Outbreaks of Banana streak virus (BSV) have been recorded worldwide where Musa spp. is grown during the last 20 years with no convincing evidence of epidemics. Epidemics were previously reported in Uganda where BSV is currently endemic. BSV is a plant pararetrovirus of the family Caulimoviridae, genus Badnavirus it causes chlorosis leaf streak disease. The information currently available on banana streak disease makes it possible to identify a complex of distinct BSV species each causing the same disease. BSV exists in two states: one as an episomal form, infecting plant cells; the other as viral DNA integrated within the B genome of banana (endogenous BSV-eBSV) forming a viral genome for de novo viral particles. Both forms can be infectious in banana plants. The BSV phylogeny is polyphyletic with BSV distributed in two clades. Clade 1 clusters BSV species that occur worldwide and may have an eBSV counterpart, whereas Clade 3 only comprises BSV species from Uganda. Clearly, two distinct origins explain such BSV diversity. However, the epidemiology/outbreaks of BSV remains unclear and the role of eBSV needs to be clarified. In this review, the biodiversity of BSV is explained and discussed in the light of field and molecular epidemiology data. A scheme is proposed for the co-evolution of BSV and banana based on old or recent infection hypotheses related to African domestication sites and banana dissemination to explain the disease context. |
| Databáze: | OpenAIRE |
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