Genetic sources and loci for wheat head blast resistance identified by genome-wide association analysis
The emergence and spread of wheat blast caused by fungal pathogen Magnaporthe oryzae pathotype Triticum is a threat to global wheat production. The resistance level and genetic loci for blast resistance in Chinese germplasm remain unknown. A panel of 266 bread wheat accessions from China, CIMMYT-Mex...
| Main Authors: | , , , , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Elsevier
2022
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/126425 |
| _version_ | 1855539045869813760 |
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| author | Lei Wu Xinyao He Kabir, Muhammad Rezaul Roy, Krishna K. Anwar, Md. Babul Marza, Felix Yi He Peng Jiang Xu Zhang Singh, Pawan Kumar |
| author_browse | Anwar, Md. Babul Kabir, Muhammad Rezaul Lei Wu Marza, Felix Peng Jiang Roy, Krishna K. Singh, Pawan Kumar Xinyao He Xu Zhang Yi He |
| author_facet | Lei Wu Xinyao He Kabir, Muhammad Rezaul Roy, Krishna K. Anwar, Md. Babul Marza, Felix Yi He Peng Jiang Xu Zhang Singh, Pawan Kumar |
| author_sort | Lei Wu |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The emergence and spread of wheat blast caused by fungal pathogen Magnaporthe oryzae pathotype Triticum is a threat to global wheat production. The resistance level and genetic loci for blast resistance in Chinese germplasm remain unknown. A panel of 266 bread wheat accessions from China, CIMMYT-Mexico and other countries was screened for head blast resistance under 12 field experiments in Bolivia and Bangladesh. Subsequently, a genome-wide association study was performed to understand the genetic basis of wheat blast resistance. The average blast index of all the accessions was 53.7% ± 12.7%, and 10 accessions including Chinese accessions Yumai 10 and Yu 02321 showed moderate to high levels of blast resistance, accounting for only 3.8% in the panel. Fifty-eight significant SNPs clustered in a 28.9 Mb interval on the 2AS/2NS translocation region, explaining phenotypic variation between 10.0% and 35.0%. The frequency of the 2AS/2NS translocation in the Chinese accessions was as low as 4.5%. These results indicated that the 2NS fragment was the only major locus conferring resistance to wheat blast in this panel, and the resistant and moderately resistant lines identified could be deployed in breeding. |
| format | Journal Article |
| id | CGSpace126425 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace1264252025-11-06T13:09:09Z Genetic sources and loci for wheat head blast resistance identified by genome-wide association analysis Lei Wu Xinyao He Kabir, Muhammad Rezaul Roy, Krishna K. Anwar, Md. Babul Marza, Felix Yi He Peng Jiang Xu Zhang Singh, Pawan Kumar magnaporthe disease resistance wheat blasts (of plants) genomes The emergence and spread of wheat blast caused by fungal pathogen Magnaporthe oryzae pathotype Triticum is a threat to global wheat production. The resistance level and genetic loci for blast resistance in Chinese germplasm remain unknown. A panel of 266 bread wheat accessions from China, CIMMYT-Mexico and other countries was screened for head blast resistance under 12 field experiments in Bolivia and Bangladesh. Subsequently, a genome-wide association study was performed to understand the genetic basis of wheat blast resistance. The average blast index of all the accessions was 53.7% ± 12.7%, and 10 accessions including Chinese accessions Yumai 10 and Yu 02321 showed moderate to high levels of blast resistance, accounting for only 3.8% in the panel. Fifty-eight significant SNPs clustered in a 28.9 Mb interval on the 2AS/2NS translocation region, explaining phenotypic variation between 10.0% and 35.0%. The frequency of the 2AS/2NS translocation in the Chinese accessions was as low as 4.5%. These results indicated that the 2NS fragment was the only major locus conferring resistance to wheat blast in this panel, and the resistant and moderately resistant lines identified could be deployed in breeding. 2022-06 2023-01-01T16:03:27Z 2023-01-01T16:03:27Z Journal Article https://hdl.handle.net/10568/126425 en Open Access application/pdf Elsevier Wu, L., He, X., Kabir, M. R., Roy, K. K., Anwar, Md. B., Marza, F., He, Y., Jiang, P., Zhang, X., & Singh, P. K. (2022). Genetic sources and loci for wheat head blast resistance identified by genome-wide association analysis. The Crop Journal, 10(3), 793–801. https://doi.org/10.1016/j.cj.2021.07.007 |
| spellingShingle | magnaporthe disease resistance wheat blasts (of plants) genomes Lei Wu Xinyao He Kabir, Muhammad Rezaul Roy, Krishna K. Anwar, Md. Babul Marza, Felix Yi He Peng Jiang Xu Zhang Singh, Pawan Kumar Genetic sources and loci for wheat head blast resistance identified by genome-wide association analysis |
| title | Genetic sources and loci for wheat head blast resistance identified by genome-wide association analysis |
| title_full | Genetic sources and loci for wheat head blast resistance identified by genome-wide association analysis |
| title_fullStr | Genetic sources and loci for wheat head blast resistance identified by genome-wide association analysis |
| title_full_unstemmed | Genetic sources and loci for wheat head blast resistance identified by genome-wide association analysis |
| title_short | Genetic sources and loci for wheat head blast resistance identified by genome-wide association analysis |
| title_sort | genetic sources and loci for wheat head blast resistance identified by genome wide association analysis |
| topic | magnaporthe disease resistance wheat blasts (of plants) genomes |
| url | https://hdl.handle.net/10568/126425 |
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