Emergence of rice yellow mottle virus in eastern Uganda: Recent and singular interplay between strains in East Africa and in Madagascar
Epidemics of rice yellow mottle virus (RYMV) have developed recently in eastern Uganda, close to Lake Victoria in East Africa. Unexpectedly, all isolates from the affected area belonged to a single strain (named S4ug), a strain that is different from the S4lv strain that has been prevalent in the La...
| Autores principales: | , , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2015
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/116033 |
| _version_ | 1855533262312570880 |
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| author | Ochola, D. Issaka, S. Rakotomalala, M. Pinel Galzi, A. Ndikumana, I. Hubert, J. Hébrard, E. Séré, Y. Tusiime, Geoffrey Fargette, D. |
| author_browse | Fargette, D. Hubert, J. Hébrard, E. Issaka, S. Ndikumana, I. Ochola, D. Pinel Galzi, A. Rakotomalala, M. Séré, Y. Tusiime, Geoffrey |
| author_facet | Ochola, D. Issaka, S. Rakotomalala, M. Pinel Galzi, A. Ndikumana, I. Hubert, J. Hébrard, E. Séré, Y. Tusiime, Geoffrey Fargette, D. |
| author_sort | Ochola, D. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Epidemics of rice yellow mottle virus (RYMV) have developed recently in eastern Uganda, close to Lake Victoria in East Africa. Unexpectedly, all isolates from the affected area belonged to a single strain (named S4ug), a strain that is different from the S4lv strain that has been prevalent in the Lake Victoria basin for the past five decades. Interestingly, the S4ug strain is most closely related at the genomic level (except ORF1) to the strain present in Madagascar (S4mg), 2000km away. The minor parent of the S4mg recombinant strain could not be detected. Molecular clock dating analysis indicated that the singular sequence of events - that associated the emergence of a new strain (S4ug), a modular recombination between closely related strains (S4mg and S4ug) and a long distance transmission (S4mg) - occurred recently, within the past few decades. This finding is at variance with the process of gradual strain dispersal and diversification over two centuries throughout Africa that was previously established. |
| format | Journal Article |
| id | CGSpace116033 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace1160332025-12-08T09:54:28Z Emergence of rice yellow mottle virus in eastern Uganda: Recent and singular interplay between strains in East Africa and in Madagascar Ochola, D. Issaka, S. Rakotomalala, M. Pinel Galzi, A. Ndikumana, I. Hubert, J. Hébrard, E. Séré, Y. Tusiime, Geoffrey Fargette, D. rice research rice yellow mottle virus Epidemics of rice yellow mottle virus (RYMV) have developed recently in eastern Uganda, close to Lake Victoria in East Africa. Unexpectedly, all isolates from the affected area belonged to a single strain (named S4ug), a strain that is different from the S4lv strain that has been prevalent in the Lake Victoria basin for the past five decades. Interestingly, the S4ug strain is most closely related at the genomic level (except ORF1) to the strain present in Madagascar (S4mg), 2000km away. The minor parent of the S4mg recombinant strain could not be detected. Molecular clock dating analysis indicated that the singular sequence of events - that associated the emergence of a new strain (S4ug), a modular recombination between closely related strains (S4mg and S4ug) and a long distance transmission (S4mg) - occurred recently, within the past few decades. This finding is at variance with the process of gradual strain dispersal and diversification over two centuries throughout Africa that was previously established. 2015-01 2021-11-12T12:00:55Z 2021-11-12T12:00:55Z Journal Article https://hdl.handle.net/10568/116033 en Open Access Elsevier Ochola, D. Issaka, S. Rakotomalala, M. Pinel-Galzi, A. Ndikumana, I. Hubert, J. Hébrard, E. Séré, Y. Tusiime, G. Fargette, D.Emergence of rice yellow mottle virus in eastern Uganda: Recent and singular interplay between strains in East Africa and in Madagascar.Virus Research.2014,Volume 195 :64-72. |
| spellingShingle | rice research rice yellow mottle virus Ochola, D. Issaka, S. Rakotomalala, M. Pinel Galzi, A. Ndikumana, I. Hubert, J. Hébrard, E. Séré, Y. Tusiime, Geoffrey Fargette, D. Emergence of rice yellow mottle virus in eastern Uganda: Recent and singular interplay between strains in East Africa and in Madagascar |
| title | Emergence of rice yellow mottle virus in eastern Uganda: Recent and singular interplay between strains in East Africa and in Madagascar |
| title_full | Emergence of rice yellow mottle virus in eastern Uganda: Recent and singular interplay between strains in East Africa and in Madagascar |
| title_fullStr | Emergence of rice yellow mottle virus in eastern Uganda: Recent and singular interplay between strains in East Africa and in Madagascar |
| title_full_unstemmed | Emergence of rice yellow mottle virus in eastern Uganda: Recent and singular interplay between strains in East Africa and in Madagascar |
| title_short | Emergence of rice yellow mottle virus in eastern Uganda: Recent and singular interplay between strains in East Africa and in Madagascar |
| title_sort | emergence of rice yellow mottle virus in eastern uganda recent and singular interplay between strains in east africa and in madagascar |
| topic | rice research rice yellow mottle virus |
| url | https://hdl.handle.net/10568/116033 |
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