Characterization of a begomovirus causing horsegram yellow mosaic disease in India
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The virus causing horsegram (Macrotyloma uniflorum) yellow mosaic disease has been shown to be a typical Old World bipartite begomovirus. The viral origin of the disease has been established through agroinoculation of horsegram using partial tandem repeat clones of both DNA-A and DNA-B. The DNA-A genome shows less than 89% identity with the corresponding sequences of all the begomoviruses in the databases earlier to this sequence submission (AJ627904). Therefore Horsegram yellow mosaic virus (HgYMV-[IN:Coi]) can be considered to be a new species of the genus Begomovirus (family Geminiviridae). Phylogenetic analysis shows that this virus is part of the cluster of mungbean yellow mosaic viruses of legumes from South and South East Asia.
KeywordsHorsegram yellow mosaic virus Phylogenetic analysis Agroinoculation
We acknowledge funding from Department of Biotechnology, Government of India. ADB thanks University Grants Commission for FIP fellowship and GKR thanks Council of Scientific and Industrial Research for SRF. We are grateful to Tamil Nadu Agricultural University for the horsegram samples and Dr. V. G. Malathi for EHA105. We thank School of Biotechnology, Madurai Kamaraj University for the facilities.
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