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Virus Res. 2014 Aug 30;189:303-9. doi: 10.1016/j.virusres.2014.06.010. Epub 2014 Jun 28.

Molecular characterisation of an endornavirus infecting the phytopathogen Sclerotinia sclerotiorum.

Author information

  • 1School of Biological Sciences, The University of Auckland, PO Box 92019, Auckland 1010, New Zealand. Electronic address: mkha201@aucklanduni.ac.nz.
  • 2School of Biological Sciences, The University of Auckland, PO Box 92019, Auckland 1010, New Zealand.

Abstract

The complete sequence and genome organisation of an endornavirus from the phytopathogenic fungus Sclerotinia sclerotiorum isolate 11691 was described and the name Sclerotinia sclerotiorum endornavirus 1 (SsEV1/11691) proposed. The genome is 10,513 nucleotides (nts) long with a single open reading frame (ORF) that codes for a single polyprotein of 3459 amino acid (aa) residues. The polyprotein contains cysteine-rich region (CRR), viral methyltransferase (MTR), putative DEXDc, viral helicase (Hel), phytoreo_S7 (S7) and RNA-dependent RNA polymerase (RdRp) domains. The polyprotein and the conserved domains are phylogenetically related to endornaviruses. However, the coding strand of SsEV1/11691 does not contain a site-specific nick characteristic of most previously described endornaviruses. The elimination of SsEV1/11691 did not result in any significant changes in the host phenotype and virulence.

Copyright © 2014 Elsevier B.V. All rights reserved.

KEYWORDS:

Endornaviridae; Endornavirus; Mitovirus; Sclerotinia sclerotiorum; SsEV1; dsRNA

[PubMed - indexed for MEDLINE]
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