The Erysimum latent virus (ELV), a tymovirus, was first isolated from several wild and cultivated brassicas in Germany. Its virions were shown to be serologically distinct from those of the turnip yellow mosaic virus (TYMV), which is also found in wild and cultivated plants in several European countries but also in other parts of the world. TYMV and ELV were among the first plant viruses to have had their genomes sequenced, and when other tymovirus genomes were sequenced, it was found that, in phylogenies, ELV is probably the basal outlier to all other tymoviruses. Here, we report the near-complete genomic sequence of another isolate of ELV from Czechia. This isolate was found in 1990 in Sisymbrium altissimum plants showing mosaic symptoms. It was detected using ELISA tests and electron microscopy. We have now sequenced the full coding sequence of this isolate using contemporary high throughput methods and found that the German and Czech isolates of ELV are closely related and are of the same virus species.

Czech Academy of Sciences Biology Centre Institute of Plant Molecular Biology Branišovská 31 370 05 České Budějovice Czech Republic

Department of Plant Protection Faculty of Agrobiology Food and Natural Resources Czech University of Life Sciences Prague Kamýcká 129 165 00 Prague Czech Republic

Ecology Diagnostics and Genetic Resources of Agriculturally Important Viruses Fungi and Phytoplasmas Crop Research Institute Drnovská 507 161 06 Prague Czech Republic

Emeritus Faculty Australian National University Canberra 2601 Australia

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