Evaluation of African cultivated rice Oryza glaberrima for resistance to bacterial blight
Xanthomonas oryzae pv. oryzae is the causal agent of bacterial blight in rice, one of the most devastating diseases of rice worldwide. African X. oryzae pv. oryzae strains belong to a clear genetic group distinct from those of Asia. Three new races of the pathogen were characterized among strains fr...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Scientific Societies
2011
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| Online Access: | https://hdl.handle.net/10568/165915 |
| _version_ | 1855530333203595264 |
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| author | Djedatin, Gustave Ndjiondjop, Marie-Noëlle Mathieu, Thierry Vera Cruz, Casiana M. Sanni, Ambaliou Ghesquière, Alain Verdier, Valérie |
| author_browse | Djedatin, Gustave Ghesquière, Alain Mathieu, Thierry Ndjiondjop, Marie-Noëlle Sanni, Ambaliou Vera Cruz, Casiana M. Verdier, Valérie |
| author_facet | Djedatin, Gustave Ndjiondjop, Marie-Noëlle Mathieu, Thierry Vera Cruz, Casiana M. Sanni, Ambaliou Ghesquière, Alain Verdier, Valérie |
| author_sort | Djedatin, Gustave |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Xanthomonas oryzae pv. oryzae is the causal agent of bacterial blight in rice, one of the most devastating diseases of rice worldwide. African X. oryzae pv. oryzae strains belong to a clear genetic group distinct from those of Asia. Three new races of the pathogen were characterized among strains from West Africa. We evaluated 107 Oryza glaberrima accessions for resistance to bacterial blight under greenhouse conditions. Six-week-old seedlings were inoculated with five different African X. oryzae pv. oryzae strains originating from the West African nations of Burkina and Mali and representing different races (A1, A2, and A3). Philippine X. oryzae pv. oryzae strain PXO86 (race 2) was also used. Most (48%) of the accessions of O. glaberrima were highly susceptible to X. oryzae pv. oryzae strains from Burkina, while 20 and 36 were resistant to X. oryzae pv. oryzae strains from Mali and the Philippines, respectively. CAPS markers and dot blot assays were used for detection of resistance genes xa5 and Xa21 from a selected set of O. glaberrima accessions. Our results suggest that the O. glaberrima germplasm contains a narrow genetic base for resistance to X. oryzae pv. oryzae. Sources of resistance identified among O. glaberrima are recommended for rice breeding programs to develop bacterial blight-resistant cultivars for West Africa. |
| format | Journal Article |
| id | CGSpace165915 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2011 |
| publishDateRange | 2011 |
| publishDateSort | 2011 |
| publisher | Scientific Societies |
| publisherStr | Scientific Societies |
| record_format | dspace |
| spelling | CGSpace1659152025-12-08T09:54:28Z Evaluation of African cultivated rice Oryza glaberrima for resistance to bacterial blight Djedatin, Gustave Ndjiondjop, Marie-Noëlle Mathieu, Thierry Vera Cruz, Casiana M. Sanni, Ambaliou Ghesquière, Alain Verdier, Valérie cultivars genetic markers germplasm oryza glaberrima pathogens plant diseases plant pathogenic bacteria seedlings varietal resistance xanthomonas oryzae pv oryzae Xanthomonas oryzae pv. oryzae is the causal agent of bacterial blight in rice, one of the most devastating diseases of rice worldwide. African X. oryzae pv. oryzae strains belong to a clear genetic group distinct from those of Asia. Three new races of the pathogen were characterized among strains from West Africa. We evaluated 107 Oryza glaberrima accessions for resistance to bacterial blight under greenhouse conditions. Six-week-old seedlings were inoculated with five different African X. oryzae pv. oryzae strains originating from the West African nations of Burkina and Mali and representing different races (A1, A2, and A3). Philippine X. oryzae pv. oryzae strain PXO86 (race 2) was also used. Most (48%) of the accessions of O. glaberrima were highly susceptible to X. oryzae pv. oryzae strains from Burkina, while 20 and 36 were resistant to X. oryzae pv. oryzae strains from Mali and the Philippines, respectively. CAPS markers and dot blot assays were used for detection of resistance genes xa5 and Xa21 from a selected set of O. glaberrima accessions. Our results suggest that the O. glaberrima germplasm contains a narrow genetic base for resistance to X. oryzae pv. oryzae. Sources of resistance identified among O. glaberrima are recommended for rice breeding programs to develop bacterial blight-resistant cultivars for West Africa. 2011-04 2024-12-19T12:55:38Z 2024-12-19T12:55:38Z Journal Article https://hdl.handle.net/10568/165915 en Scientific Societies Djedatin, Gustave; Ndjiondjop, Marie-Noëlle; Mathieu, Thierry; Cruz, Casiana M. Vera; Sanni, Ambaliou; Ghesquière, Alain and Verdier, Valérie. 2011. Evaluation of African cultivated rice Oryza glaberrima for resistance to bacterial blight. Plant Disease, Volume 95 no. 4 p. 441-447 |
| spellingShingle | cultivars genetic markers germplasm oryza glaberrima pathogens plant diseases plant pathogenic bacteria seedlings varietal resistance xanthomonas oryzae pv oryzae Djedatin, Gustave Ndjiondjop, Marie-Noëlle Mathieu, Thierry Vera Cruz, Casiana M. Sanni, Ambaliou Ghesquière, Alain Verdier, Valérie Evaluation of African cultivated rice Oryza glaberrima for resistance to bacterial blight |
| title | Evaluation of African cultivated rice Oryza glaberrima for resistance to bacterial blight |
| title_full | Evaluation of African cultivated rice Oryza glaberrima for resistance to bacterial blight |
| title_fullStr | Evaluation of African cultivated rice Oryza glaberrima for resistance to bacterial blight |
| title_full_unstemmed | Evaluation of African cultivated rice Oryza glaberrima for resistance to bacterial blight |
| title_short | Evaluation of African cultivated rice Oryza glaberrima for resistance to bacterial blight |
| title_sort | evaluation of african cultivated rice oryza glaberrima for resistance to bacterial blight |
| topic | cultivars genetic markers germplasm oryza glaberrima pathogens plant diseases plant pathogenic bacteria seedlings varietal resistance xanthomonas oryzae pv oryzae |
| url | https://hdl.handle.net/10568/165915 |
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