The genome sequence of a mitovirus found in an isolate of Diaporthe rudis, one of the causal agents of Phomopsis dieback on grapevines, was determined by two high-throughput sequencing approaches, small RNA and total RNA sequencing. The genome of this mitovirus is 2,455 nt in length and includes a single large open reading frame (ORF) encoding an RNA-dependent RNA polymerase (RdRp). A BLASTx comparison of the full-length genome sequence showed the highest similarity (54.15%) with that of Colletotrichum falcatum mitovirus 1 (CfMV1). Our results reveal a new member of the genus Mitovirus first detected in D. rudis (Fr.) Nitschke, with the proposed name "Diaporthe rudis mitovirus 1" (DrMV1).

Biotechnological Centre Faculty of Agriculture University of South Bohemia Na Sadkach 1780 37005 Ceske Budejovice Czech Republic

Mendeleum Institute of Genetics Faculty of Horticulture Mendel University in Brno Valticka 334 691 44 Lednice Czech Republic

Phytophthora Research Centre Department of Forest Protection and Wildlife Management Faculty of Forestry and Wood Technology Mendel University in Brno Zemedelska 1 613 00 Brno Czech Republic

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