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http://krishi.icar.gov.in/jspui/handle/123456789/67885| Title: | Genetic diversity of Sugarcane bacilliform virus isolates infecting Saccharum spp. in India. |
| Other Titles: | Not Available |
| Authors: | Karuppaiah, R., R. Viswanathan and V. Ganesh Kumar |
| ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
| Author's Affiliated institute: | ICAR::Sugarcane Breeding Institute |
| Published/ Complete Date: | 2013-06-01 |
| Project Code: | Not Available |
| Keywords: | Sugarcane, Sugarcane bacilliform virus, Badnavirus, Leaf freckle, Genome variation, India |
| Publisher: | Springer US |
| Citation: | 26 |
| Series/Report no.: | Not Available; |
| Abstract/Description: | Sugarcane bacilliform virus (SCBV), which causes leaf freckle in sugarcane, is a member of the genus Badnavirus. Studies were conducted to characterize SCBV in Saccharum officinarum germplasm and cultivated varieties in India by sequencing the complete genomes of five isolates. Genome lengths ranged from 7553 to 7884 nucleotides. Duplications in ORF 3 and insertions in the RNase H domain in some of the isolates were found to contribute to the large size of their genomes. The Indian SCBV isolates share identities of 69-85% for the complete genomic sequence, indicating wide genetic diversity among them, and share 70-82% identity with Sugarcane bacilliform Ireng Maleng virus (SCBIMV) and Sugarcane bacilliform Morocco Virus (SCBMV), as well as 43-46% identity with Banana streak virus (BSV) and BSV-related SCBV species from Guadeloupe, indicating that the Indian SCBV isolates is distinct from SCBV isolates reported to date. Irrespective of the region compared, SCBV isolates from India, Australia and Morocco clustered together. BSV and BSV-related SCBV sequences from Guadeloupe formed another cluster. A phylogenetic analysis based on the partial RT/RNase H sequence separated SCBV and BSV-related SCBV sequences into 11 SCBV groups viz., SCBV-A to -K. Among the 11 groups, the SCBV sequences separated under H, I, J and K are newly identified in this study, representing three new species and are tentatively named as SCBBBV, SCBBOV and SCBBRV. Thus the PASC and phylogenetic analyses evidenced that the symptoms associated with badnaviruses in sugarcane in India are caused by at least three new species, SCBBBV, SCBBOV and SCBBRV, besides SCBIMV and SCBMV represented by SCBV-BT and SCBV-Iscam, respectively |
| Description: | Not Available |
| ISSN: | 0920-8569r |
| Type(s) of content: | Research Paper |
| Sponsors: | Not Available |
| Language: | English |
| Name of Journal: | Virus Genes |
| NAAS Rating: | 7.99 |
| Impact Factor: | 1.991 |
| Volume No.: | 46(3) |
| Page Number: | 505-516 |
| Name of the Division/Regional Station: | Division of crop protection |
| Source, DOI or any other URL: | DOI: 10.1007/s11262-013-0890-6 |
| URI: | http://krishi.icar.gov.in/jspui/handle/123456789/67885 |
| Appears in Collections: | CS-SBI-Publication |
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