Population diversity of rice bacterial leaf blight isolates in Uganda
The deployment of resistant cultivars is the best option to control bacterial leaf blight (BLB) and requires an understanding of the pathogen diversity. BLB caused by Xanthomonas oryzae pv.oryzae is a destructive disease of rice (Oryza sativa L.) in Uganda. Unfortunately, detailed information on U...
| Autores principales: | , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
2013
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/115703 |
| _version_ | 1855513933606027264 |
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| author | Habarurema, I. Edema, R. Gibson, P. Lamo, J. Asea, G. Séré, Y. Gasore, E.R. |
| author_browse | Asea, G. Edema, R. Gasore, E.R. Gibson, P. Habarurema, I. Lamo, J. Séré, Y. |
| author_facet | Habarurema, I. Edema, R. Gibson, P. Lamo, J. Asea, G. Séré, Y. Gasore, E.R. |
| author_sort | Habarurema, I. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The deployment of resistant cultivars is the best option to control bacterial leaf blight (BLB) and requires an
understanding of the pathogen diversity. BLB caused by Xanthomonas oryzae pv.oryzae is a destructive disease of
rice (Oryza sativa L.) in Uganda. Unfortunately, detailed information on Ugandan pathogen populations is not
available. A set of 21 differential rice genotypes that have known resistance genes were used in a split plot design to
test for differential virulence of six different isolates of X.oryzae pv.oryzae obtained from seed samples collected
from Eastern Uganda. Statistical analysis showed diversity among isolates. The susceptibility of the differentials
with two to four-gene combinations and the resistance of IR24 to Ugandan isolates were unusual and, therefore
suggested a different pattern between Asian and Ugandan isolates at pathological level. Although the isolates were
fewer in number, attempts to classify them into pathogenic races gave rise to 6 different races, as each isolate
caused a particular virulence pattern on the differentials. The six races formed two significantly different (p ≤ 0.05)
groups of one race (UX041) and five races (UX051, UX00, UX050, UX058 and UX044). These races would be used
in screening rice germplasm available and/or newly introduced to Uganda. |
| format | Journal Article |
| id | CGSpace115703 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| record_format | dspace |
| spelling | CGSpace1157032025-12-08T09:54:28Z Population diversity of rice bacterial leaf blight isolates in Uganda Habarurema, I. Edema, R. Gibson, P. Lamo, J. Asea, G. Séré, Y. Gasore, E.R. rice plant diseases research The deployment of resistant cultivars is the best option to control bacterial leaf blight (BLB) and requires an understanding of the pathogen diversity. BLB caused by Xanthomonas oryzae pv.oryzae is a destructive disease of rice (Oryza sativa L.) in Uganda. Unfortunately, detailed information on Ugandan pathogen populations is not available. A set of 21 differential rice genotypes that have known resistance genes were used in a split plot design to test for differential virulence of six different isolates of X.oryzae pv.oryzae obtained from seed samples collected from Eastern Uganda. Statistical analysis showed diversity among isolates. The susceptibility of the differentials with two to four-gene combinations and the resistance of IR24 to Ugandan isolates were unusual and, therefore suggested a different pattern between Asian and Ugandan isolates at pathological level. Although the isolates were fewer in number, attempts to classify them into pathogenic races gave rise to 6 different races, as each isolate caused a particular virulence pattern on the differentials. The six races formed two significantly different (p ≤ 0.05) groups of one race (UX041) and five races (UX051, UX00, UX050, UX058 and UX044). These races would be used in screening rice germplasm available and/or newly introduced to Uganda. 2013 2021-10-26T15:11:59Z 2021-10-26T15:11:59Z Journal Article https://hdl.handle.net/10568/115703 en Open Access Habarurema, I. Edema, R. Gibson, P. Lamo, J. Asea, G. Séré, Y. Gasore, E.R.Population diversity of rice bacterial leaf blight isolates in Uganda.Asian Journal of Plant Science and Research.2013, Volume 3, Issue 1: 1-9. |
| spellingShingle | rice plant diseases research Habarurema, I. Edema, R. Gibson, P. Lamo, J. Asea, G. Séré, Y. Gasore, E.R. Population diversity of rice bacterial leaf blight isolates in Uganda |
| title | Population diversity of rice bacterial leaf blight isolates in Uganda |
| title_full | Population diversity of rice bacterial leaf blight isolates in Uganda |
| title_fullStr | Population diversity of rice bacterial leaf blight isolates in Uganda |
| title_full_unstemmed | Population diversity of rice bacterial leaf blight isolates in Uganda |
| title_short | Population diversity of rice bacterial leaf blight isolates in Uganda |
| title_sort | population diversity of rice bacterial leaf blight isolates in uganda |
| topic | rice plant diseases research |
| url | https://hdl.handle.net/10568/115703 |
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