The DNA-1 like alphasatellites in association with the bipartite Mungbean yellow mosaic virus in natural infections
2014
Satya, V.K. | Malathi, V.G. | Velazhahan, R. | Rabindran, R. | Jayamani, P. | Alice, D.
Yellow mosaic disease is the major limitation in the production of grain legumes in India. This disease is caused by bipartite begomovirus, Mungbean yellow mosaic virus . In addition to the bipartite genomic components, the yellow mosaic disease affected urdbean plants which contain satellite like DNA-1 component called as alphasatellites. The present study has been attempted to characterise the alphasatellites associated with Mungbean yellow mosaic virus . Nucleotide sequence analysis of alphasatellites showed 98% identity with Vernonia yellow vein Fijian alphasatellite , VYVFA (JF733780). Since the sequence identity is more than 98%, the threshold value for demarcation of alphasatellites species, the alphasatellites of the present study are named as Vernonia yellow vein Fijian alphasatellite . Comparison with other, alphasatellites shared 51–55% identity with alphasatellites associated with monopartite begomovirus and it shared only 41–42% identity with an unusual alphasatellites, DNA-2. This is the first report on characterisation of alphasatellites associated with Mungbean yellow mosaic virus .
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