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| Content Provider | Springer Nature Link |
|---|---|
| Author | Eni, A. O. Hughes, J. d’A. Asiedu, R. Rey, M. E. C. |
| Copyright Year | 2008 |
| Abstract | We analysed the sequence diversity in the reverse transcriptase (RT)/ribonuclease H (RNaseH) coding region of 19 badnavirus isolates infecting yam (Dioscorea spp.) in Ghana, Togo, Benin, and Nigeria. Phylogenetic analysis of the deduced amino acid sequences revealed that the isolates are broadly divided into two distinct species, each clustering with Dioscorea alata bacilliform virus (DaBV) and Dioscorea sansibarensis bacilliform virus (DsBV). Fourteen isolates had 90–96% amino acid identity with DaBV, while four isolates had 83–84% amino acid identity with DsBV. One isolate from Benin, BN4Dr, was distinct and had 77 and 75% amino acid identity with DaBV and DsBV, respectively, and may be a member of a new badnavirus species infecting yam in West Africa. Viruses of the two main species were present in Ghana, Togo and Benin and were observed to infect both D. alata and D. rotundata indiscriminately. This is the first confirmed report of DsBV infection in yam in Ghana and Togo. The results of this study demonstrate that members of two distinct species of badnaviruses infect yam in the West African yam zone and suggest a putative new species, BN4Dr. We also conclude that these species are not confined to limited geographic regions or specific for yam host species. However, the three badnavirus species are serologically related. The sequence information obtained from this study can be used to develop PCR-based diagnostics to detect members of the various species and/or strains of badnaviruses infecting yam in West Africa. |
| Starting Page | 2263 |
| Ending Page | 2272 |
| Page Count | 10 |
| File Format | |
| ISSN | 03048608 |
| Journal | Archives of Virology |
| Volume Number | 153 |
| Issue Number | 12 |
| e-ISSN | 14328798 |
| Language | English |
| Publisher | Springer Vienna |
| Publisher Date | 2008-11-22 |
| Publisher Place | Vienna |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Infectious Diseases Medical Microbiology Virology |
| Content Type | Text |
| Resource Type | Book Review |
| Subject | Virology Medicine |
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