Host-plant defence against Striga spp.: reconsidering the role of tolerance
Parasitic weeds of the genus Striga cause high yield losses in cereal crops across Africa. Host-plant defence against Striga spp. can be an effective control strategy. It ideally consists of resistance, to reduce infection, complemented with tolerance, to mitigate the effects of infection. As resist...
| Autores principales: | , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Wiley
2011
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/120209 |
| _version_ | 1855531106915319808 |
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| author | Rodenburg, J. Bastiaans, L. |
| author_browse | Bastiaans, L. Rodenburg, J. |
| author_facet | Rodenburg, J. Bastiaans, L. |
| author_sort | Rodenburg, J. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Parasitic weeds of the genus Striga cause high yield losses in cereal crops across Africa. Host-plant defence against Striga spp. can be an effective control strategy. It ideally consists of resistance, to reduce infection, complemented with tolerance, to mitigate the effects of infection. As resistance against Striga spp. can both minimise yield losses and reduce future infestation levels in infested fields, current breeding efforts are mainly directed towards this trait. Because it is nearly impossible to screen for tolerance on highly resistant genetic lines, tolerance is often neglected. Here, we argue reconsidering the role of tolerance, as recent findings regarding the physiological expression of tolerance offer a promising track for identifying the genetic background of tolerance. Identification of quantitative trait loci for tolerance would facilitate the inclusion of this trait in adapted cultivars with high levels of resistance, where its main role would be to function as a safety net in case the genetically highly variable parasite populations overcome host-plant resistance. Because Striga spp. are mainly prevalent in subsistence farming systems, we consider this an important addition and it is for this reason that we make a plea for a more prominent role of tolerance in present-day integrated management of this weed. |
| format | Journal Article |
| id | CGSpace120209 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2011 |
| publishDateRange | 2011 |
| publishDateSort | 2011 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace1202092023-02-16T20:43:01Z Host-plant defence against Striga spp.: reconsidering the role of tolerance Rodenburg, J. Bastiaans, L. breeding witchweed cultivars rice sorghum maize sub-saharan africa Parasitic weeds of the genus Striga cause high yield losses in cereal crops across Africa. Host-plant defence against Striga spp. can be an effective control strategy. It ideally consists of resistance, to reduce infection, complemented with tolerance, to mitigate the effects of infection. As resistance against Striga spp. can both minimise yield losses and reduce future infestation levels in infested fields, current breeding efforts are mainly directed towards this trait. Because it is nearly impossible to screen for tolerance on highly resistant genetic lines, tolerance is often neglected. Here, we argue reconsidering the role of tolerance, as recent findings regarding the physiological expression of tolerance offer a promising track for identifying the genetic background of tolerance. Identification of quantitative trait loci for tolerance would facilitate the inclusion of this trait in adapted cultivars with high levels of resistance, where its main role would be to function as a safety net in case the genetically highly variable parasite populations overcome host-plant resistance. Because Striga spp. are mainly prevalent in subsistence farming systems, we consider this an important addition and it is for this reason that we make a plea for a more prominent role of tolerance in present-day integrated management of this weed. 2011-10 2022-07-20T06:45:34Z 2022-07-20T06:45:34Z Journal Article https://hdl.handle.net/10568/120209 en Open Access Wiley Rodenburg, J. Bastiaans, L. Host-plant defence against Striga spp.: reconsidering the role of tolerance. Weed Research. 2011, Volume 51, Issue 5: 438-441. |
| spellingShingle | breeding witchweed cultivars rice sorghum maize sub-saharan africa Rodenburg, J. Bastiaans, L. Host-plant defence against Striga spp.: reconsidering the role of tolerance |
| title | Host-plant defence against Striga spp.: reconsidering the role of tolerance |
| title_full | Host-plant defence against Striga spp.: reconsidering the role of tolerance |
| title_fullStr | Host-plant defence against Striga spp.: reconsidering the role of tolerance |
| title_full_unstemmed | Host-plant defence against Striga spp.: reconsidering the role of tolerance |
| title_short | Host-plant defence against Striga spp.: reconsidering the role of tolerance |
| title_sort | host plant defence against striga spp reconsidering the role of tolerance |
| topic | breeding witchweed cultivars rice sorghum maize sub-saharan africa |
| url | https://hdl.handle.net/10568/120209 |
| work_keys_str_mv | AT rodenburgj hostplantdefenceagainststrigasppreconsideringtheroleoftolerance AT bastiaansl hostplantdefenceagainststrigasppreconsideringtheroleoftolerance |