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Host range and molecular variability of the sadwavirus dioscorea mosaic associated virus

Abstract : Dioscorea mosaic associated virus (DMaV) is a member of the genus Sadwavirus, family Secoviridae, that is associated with mosaic symptoms in Dioscorea rotundata in Brazil. The genome of a DMaV isolate detected in D. trifida in Guadeloupe was sequenced by high-throughput sequencing. Using an RT-PCR-based detection assay, we found that DMaV infects D. alata, D. bulbifera, D. cayenensis-rotundata, D. esculenta, and D. trifida accessions conserved in Guadeloupe and Côte d’Ivoire and displays a very high level of molecular diversity in a relatively small region of the genome targeted by the assay. We also provide evidence that DMaV is also present in D. rotundata in Benin and in D. alata in Nigeria.
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Submitted on : Friday, February 11, 2022 - 11:39:53 AM
Last modification on : Saturday, May 21, 2022 - 3:51:54 AM

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Marie Umber, Denis Filloux, Laurence Svanella-Dumas, Lydiane Bonheur, Isabelle Acina-Mambole, et al.. Host range and molecular variability of the sadwavirus dioscorea mosaic associated virus. Archives of Virology, Springer Verlag, In press, 167, pp.917-922. ⟨10.1007/s00705-022-05379-w⟩. ⟨hal-03565882⟩

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