Dynamics of Xanthomonas oryzae pv. oryzae populations in Korea and their relationship to known bacterial blight resistance genes
Developing resistant cultivars requires an understanding of the dynamics of the pathogen populations as well as the genetics of host resistance. Bacterial leaf blight (BB), caused by the vascular pathogen Xanthomonas oryzae pv. oryzae, has become one of the most devastating diseases of rice. We demo...
| Autores principales: | , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Scientific Societies
2006
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/166582 |
| _version_ | 1855515761397727232 |
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| author | Jeung, J.U. Heu, S.G. Shin, M.S. Vera Cruz, C.M. Jena, K.K. |
| author_browse | Heu, S.G. Jena, K.K. Jeung, J.U. Shin, M.S. Vera Cruz, C.M. |
| author_facet | Jeung, J.U. Heu, S.G. Shin, M.S. Vera Cruz, C.M. Jena, K.K. |
| author_sort | Jeung, J.U. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Developing resistant cultivars requires an understanding of the dynamics of the pathogen populations as well as the genetics of host resistance. Bacterial leaf blight (BB), caused by the vascular pathogen Xanthomonas oryzae pv. oryzae, has become one of the most devastating diseases of rice. We demonstrate here the quantitative analyses of responses of near-isogenic lines carrying various BB resistance (R) genes and R-gene combinations against 16 X. oryzae pv. oryzae isolates representing Korean BB pathotypes. The estimated main effects of each R gene against the 16 isolates identified prominent differences in BB pathotypes between Korea and other countries. Three major aspects of our quantitative observations and statistical analysis are (i) strong and broad resistance of xa5; (ii) independent and additive genetic actions of Xa4, xa5, and Xa21 under digenic or trigenic status; and (iii) a strong quantitative complementation effect contributed by the functional alleles of Xa4 and Xa21. We conclude that the pyramid line containing genes Xa4, xa5, and Xa21 would be the most promising and valuable genotype for improving Korean japonica cultivars for BB resistance. |
| format | Journal Article |
| id | CGSpace166582 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2006 |
| publishDateRange | 2006 |
| publishDateSort | 2006 |
| publisher | Scientific Societies |
| publisherStr | Scientific Societies |
| record_format | dspace |
| spelling | CGSpace1665822025-05-14T10:39:29Z Dynamics of Xanthomonas oryzae pv. oryzae populations in Korea and their relationship to known bacterial blight resistance genes Jeung, J.U. Heu, S.G. Shin, M.S. Vera Cruz, C.M. Jena, K.K. alleles disease resistance genes plant disease control plant pathogenic bacteria bacterial blight xanthomonas oryza pv oryzae korea republic Developing resistant cultivars requires an understanding of the dynamics of the pathogen populations as well as the genetics of host resistance. Bacterial leaf blight (BB), caused by the vascular pathogen Xanthomonas oryzae pv. oryzae, has become one of the most devastating diseases of rice. We demonstrate here the quantitative analyses of responses of near-isogenic lines carrying various BB resistance (R) genes and R-gene combinations against 16 X. oryzae pv. oryzae isolates representing Korean BB pathotypes. The estimated main effects of each R gene against the 16 isolates identified prominent differences in BB pathotypes between Korea and other countries. Three major aspects of our quantitative observations and statistical analysis are (i) strong and broad resistance of xa5; (ii) independent and additive genetic actions of Xa4, xa5, and Xa21 under digenic or trigenic status; and (iii) a strong quantitative complementation effect contributed by the functional alleles of Xa4 and Xa21. We conclude that the pyramid line containing genes Xa4, xa5, and Xa21 would be the most promising and valuable genotype for improving Korean japonica cultivars for BB resistance. 2006-08 2024-12-19T12:56:27Z 2024-12-19T12:56:27Z Journal Article https://hdl.handle.net/10568/166582 en Scientific Societies Jeung, J. U.; Heu, S. G.; Shin, M. S.; Vera Cruz, C. M. and Jena, K. K. 2006. Dynamics of Xanthomonas oryzae pv. oryzae populations in Korea and their relationship to known bacterial blight resistance genes. Phytopathology®, Volume 96 no. 8 p. 867-875 |
| spellingShingle | alleles disease resistance genes plant disease control plant pathogenic bacteria bacterial blight xanthomonas oryza pv oryzae korea republic Jeung, J.U. Heu, S.G. Shin, M.S. Vera Cruz, C.M. Jena, K.K. Dynamics of Xanthomonas oryzae pv. oryzae populations in Korea and their relationship to known bacterial blight resistance genes |
| title | Dynamics of Xanthomonas oryzae pv. oryzae populations in Korea and their relationship to known bacterial blight resistance genes |
| title_full | Dynamics of Xanthomonas oryzae pv. oryzae populations in Korea and their relationship to known bacterial blight resistance genes |
| title_fullStr | Dynamics of Xanthomonas oryzae pv. oryzae populations in Korea and their relationship to known bacterial blight resistance genes |
| title_full_unstemmed | Dynamics of Xanthomonas oryzae pv. oryzae populations in Korea and their relationship to known bacterial blight resistance genes |
| title_short | Dynamics of Xanthomonas oryzae pv. oryzae populations in Korea and their relationship to known bacterial blight resistance genes |
| title_sort | dynamics of xanthomonas oryzae pv oryzae populations in korea and their relationship to known bacterial blight resistance genes |
| topic | alleles disease resistance genes plant disease control plant pathogenic bacteria bacterial blight xanthomonas oryza pv oryzae korea republic |
| url | https://hdl.handle.net/10568/166582 |
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