Degeneration in sweetpotato due to viruses, virus-cleaned planting material and reversion: A review
This review examines viral degeneration in sweetpotato in different regions of the World, particularly that caused by Sweet potato chlorotic stunt virus (SPCSV) and Sweet potato feathery mottle virus (SPFMV), comparing impacts on yield in single and complex infections of all the major viruses affect...
| Main Authors: | , |
|---|---|
| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Wiley
2015
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/58300 |
| _version_ | 1855538644624867328 |
|---|---|
| author | Gibson, R.W. Kreuze, Jan F. |
| author_browse | Gibson, R.W. Kreuze, Jan F. |
| author_facet | Gibson, R.W. Kreuze, Jan F. |
| author_sort | Gibson, R.W. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | This review examines viral degeneration in sweetpotato in different regions of the World, particularly that caused by Sweet potato chlorotic stunt virus (SPCSV) and Sweet potato feathery mottle virus (SPFMV), comparing impacts on yield in single and complex infections of all the major viruses affecting the crop. How cultivars are generated and virus resistance are also covered, especially for Africa. The synergistic (SPCSV + SPFMV) sweet potato virus disease (SPVD) is amongst the most dramatic diseases of sweetpotato but its overall yield impacts may not be as high as is generally assumed. It is constrained by resistance, roguing and selection of symptomless planting material. Instead, the cumulative impact of individual and combinations of symptomless viruses may be globally greater. These include sweepoviruses and various potyviruses, of which the commonest is SPFMV. A number of aspects of virus‐cleaned planting stocks are identified, including reinfection rates, that need investigating before their use is considered as sustainable in developing countries. Popular East African cultivars appear to sustain their long‐term survival by reverting from symptomless infection. The likely biochemistry of this is discussed, and parallels are drawn with other crops. It is concluded that breeding for this attribute will be the best strategy for achieving long‐term control of most sweetpotato viruses. |
| format | Journal Article |
| id | CGSpace58300 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace583002024-05-01T08:19:27Z Degeneration in sweetpotato due to viruses, virus-cleaned planting material and reversion: A review Gibson, R.W. Kreuze, Jan F. sweet potatoes plant viruses This review examines viral degeneration in sweetpotato in different regions of the World, particularly that caused by Sweet potato chlorotic stunt virus (SPCSV) and Sweet potato feathery mottle virus (SPFMV), comparing impacts on yield in single and complex infections of all the major viruses affecting the crop. How cultivars are generated and virus resistance are also covered, especially for Africa. The synergistic (SPCSV + SPFMV) sweet potato virus disease (SPVD) is amongst the most dramatic diseases of sweetpotato but its overall yield impacts may not be as high as is generally assumed. It is constrained by resistance, roguing and selection of symptomless planting material. Instead, the cumulative impact of individual and combinations of symptomless viruses may be globally greater. These include sweepoviruses and various potyviruses, of which the commonest is SPFMV. A number of aspects of virus‐cleaned planting stocks are identified, including reinfection rates, that need investigating before their use is considered as sustainable in developing countries. Popular East African cultivars appear to sustain their long‐term survival by reverting from symptomless infection. The likely biochemistry of this is discussed, and parallels are drawn with other crops. It is concluded that breeding for this attribute will be the best strategy for achieving long‐term control of most sweetpotato viruses. 2015-02 2015-03-13T19:36:55Z 2015-03-13T19:36:55Z Journal Article https://hdl.handle.net/10568/58300 en Limited Access Wiley Gibson, R.W.; Kreuze, J.F. 2014. Degeneration in sweetpotato due to viruses, virus-cleaned planting material and reversion: A review. Plant Pathology. 64(1):1-15. |
| spellingShingle | sweet potatoes plant viruses Gibson, R.W. Kreuze, Jan F. Degeneration in sweetpotato due to viruses, virus-cleaned planting material and reversion: A review |
| title | Degeneration in sweetpotato due to viruses, virus-cleaned planting material and reversion: A review |
| title_full | Degeneration in sweetpotato due to viruses, virus-cleaned planting material and reversion: A review |
| title_fullStr | Degeneration in sweetpotato due to viruses, virus-cleaned planting material and reversion: A review |
| title_full_unstemmed | Degeneration in sweetpotato due to viruses, virus-cleaned planting material and reversion: A review |
| title_short | Degeneration in sweetpotato due to viruses, virus-cleaned planting material and reversion: A review |
| title_sort | degeneration in sweetpotato due to viruses virus cleaned planting material and reversion a review |
| topic | sweet potatoes plant viruses |
| url | https://hdl.handle.net/10568/58300 |
| work_keys_str_mv | AT gibsonrw degenerationinsweetpotatoduetovirusesviruscleanedplantingmaterialandreversionareview AT kreuzejanf degenerationinsweetpotatoduetovirusesviruscleanedplantingmaterialandreversionareview |