Association of an atypical alphasatellite with a bipartite New World begomovirus
- First Online:
- Cite this article as:
- Romay, G., Chirinos, D., Geraud-Pouey, F. et al. Arch Virol (2010) 155: 1843. doi:10.1007/s00705-010-0760-7
- 317 Downloads
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.