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Association of an atypical alphasatellite with a bipartite New World begomovirus

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Abstract

The complete sequence of a watermelon-infecting Venezuelan begomovirus was obtained; it corresponds to that of the partially characterized melon chlorotic mosaic virus (MeCMV). MeCMV is a typical bipartite New World begomovirus. A putative alphasatellite, MeCMVa1, was found associated with MeCMV. This is the first satellite detected in the New World, and the first natural association of an alphasatellite with a bipartite begomovirus. The sequence of MeCMVa1 diverged highly from those of other alphasatellites, except for two atypical ones, which, like MeCMVa1, had a putative ORF2 embedded in the Rep-encoding ORF1. These findings raise new questions about the origin and evolution of subviral agents associated with begomoviruses.

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Acknowledgments

We thank B. Gronenborn, H. Lecoq and B. Moury for critical review of the manuscript.

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Correspondence to C. Desbiez.

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Romay, G., Chirinos, D., Geraud-Pouey, F. et al. Association of an atypical alphasatellite with a bipartite New World begomovirus. Arch Virol 155, 1843–1847 (2010). https://doi.org/10.1007/s00705-010-0760-7

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  • DOI: https://doi.org/10.1007/s00705-010-0760-7

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