Venkataravanappa V
Indian Institute Vegetable Research,
Varanasi-221305, Uttar Pradesh
India
Research Article
Molecular Evidence for Association of Tobacco Curly Shoot Virus and a Betasatellite with Curly Shoot Disease of Common Bean (Phaseolus vulgaris
L.) from India
Author(s): Venkataravanappa V, Swarnalatha P, Lakshminarayana Reddy CN, Mahesh B, Rai AB and Krishna Reddy MVenkataravanappa V, Swarnalatha P, Lakshminarayana Reddy CN, Mahesh B, Rai AB and Krishna Reddy M
A new strain (FB01) of Tobacco curly shoot virus (TbCSV) showing curly shoot symptoms on common bean plants from Varanasi, Uttar Pradesh state of India was characterized. The analysis of the whole genome sequence and individual ORFs of this virus indicated that it is very closely related (sequence similarity of 89.1-94.5%) to the TbCSV infecting solanaceous and other weed crops in India and China. This was well supported by phylogenetic analysis with close clustering of the virus isolate with TbCSV. The absence of DNA-B and association of virus with betasatellite confirmed it as a monopartite begomovirus. The betasatellite identified here shared highest (53.9-93.9%) sequence identity with tomato leaf curl betasatellite. Further, putative recombination events were recognized within the virus sequence, suggesting that the virus is a recombinant and evolved from recombination of Tobacco.. View More»
DOI:
10.4172/2157-7471.1000148