Geographic Distribution of Common and Dwarf Bunt Resistance in Landraces of Triticum aestivum subsp. aestivum
Landrace accessions of wheat (Triticum aestivum L. subsp. aestivum) from the USDA‐ARS National Small Grains Collection (NSGC) have been tested systematically for the past 25 yr for disease resistance. We analyzed the resistance of 10 759 common wheat accessions to common bunt (CB) caused by Tilletia...
| Autores principales: | , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Wiley
2006
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/166600 |
| _version_ | 1855540308549304320 |
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| author | Bonman, J. Michael Bockelman, Harold E. Goates, Blair J. Obert, Don E. McGuire, Patrick E. Qualset, Calvin O. Hijmans, Robert J. |
| author_browse | Bockelman, Harold E. Bonman, J. Michael Goates, Blair J. Hijmans, Robert J. McGuire, Patrick E. Obert, Don E. Qualset, Calvin O. |
| author_facet | Bonman, J. Michael Bockelman, Harold E. Goates, Blair J. Obert, Don E. McGuire, Patrick E. Qualset, Calvin O. Hijmans, Robert J. |
| author_sort | Bonman, J. Michael |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Landrace accessions of wheat (Triticum aestivum L. subsp. aestivum) from the USDA‐ARS National Small Grains Collection (NSGC) have been tested systematically for the past 25 yr for disease resistance. We analyzed the resistance of 10 759 common wheat accessions to common bunt (CB) caused by Tilletia tritici (Bjerk.) Wint. and T. laevis Kühn, and 8167 to dwarf bunt (DB) caused by T. controversa Kühn with respect to geographic origin, relationship to color of awn, glume, and kernel of accessions, and phenotypic variation within areas of high frequency of resistance. A clear center of concentration was evident for CB resistance extending from Serbia and Montenegro through Macedonia, Turkey, and Iran with the highest frequency of resistance occurring in Kosovo province in Serbia and Montenegro (36%) and Bakhtaran province in Iran (40.8%). Compared to CB resistance (5.5% of total tested), DB resistance was more rare (1.3% of total tested). DB resistance was concentrated in accessions from Iran, Turkey, and Serbia and Montenegro with the highest frequency (58%) occurring in Hakkari province in southeastern Turkey. CB resistance was positively associated with lightly pigmented kernels and negatively associated with lightly pigmented awns and glumes. Analysis of accessions from areas with unusually high frequency of resistance suggested that DB resistant accessions from Hakkari are genetically diverse, whereas CB resistant accessions from Bakhtaran may be much less so. |
| format | Journal Article |
| id | CGSpace166600 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2006 |
| publishDateRange | 2006 |
| publishDateSort | 2006 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace1666002024-12-22T05:45:01Z Geographic Distribution of Common and Dwarf Bunt Resistance in Landraces of Triticum aestivum subsp. aestivum Bonman, J. Michael Bockelman, Harold E. Goates, Blair J. Obert, Don E. McGuire, Patrick E. Qualset, Calvin O. Hijmans, Robert J. awns colour disease resistance fungi geographical distribution glumes land varieties pathogens phenotypic variation plant diseases plant pathogenic fungi rice origin varietal resistance wheat Landrace accessions of wheat (Triticum aestivum L. subsp. aestivum) from the USDA‐ARS National Small Grains Collection (NSGC) have been tested systematically for the past 25 yr for disease resistance. We analyzed the resistance of 10 759 common wheat accessions to common bunt (CB) caused by Tilletia tritici (Bjerk.) Wint. and T. laevis Kühn, and 8167 to dwarf bunt (DB) caused by T. controversa Kühn with respect to geographic origin, relationship to color of awn, glume, and kernel of accessions, and phenotypic variation within areas of high frequency of resistance. A clear center of concentration was evident for CB resistance extending from Serbia and Montenegro through Macedonia, Turkey, and Iran with the highest frequency of resistance occurring in Kosovo province in Serbia and Montenegro (36%) and Bakhtaran province in Iran (40.8%). Compared to CB resistance (5.5% of total tested), DB resistance was more rare (1.3% of total tested). DB resistance was concentrated in accessions from Iran, Turkey, and Serbia and Montenegro with the highest frequency (58%) occurring in Hakkari province in southeastern Turkey. CB resistance was positively associated with lightly pigmented kernels and negatively associated with lightly pigmented awns and glumes. Analysis of accessions from areas with unusually high frequency of resistance suggested that DB resistant accessions from Hakkari are genetically diverse, whereas CB resistant accessions from Bakhtaran may be much less so. 2006-07 2024-12-19T12:56:27Z 2024-12-19T12:56:27Z Journal Article https://hdl.handle.net/10568/166600 en Wiley Bonman, J. Michael; Bockelman, Harold E.; Goates, Blair J.; Obert, Don E.; McGuire, Patrick E.; Qualset, Calvin O. and Hijmans, Robert J. 2006. Geographic Distribution of Common and Dwarf Bunt Resistance in Landraces of Triticum aestivum subsp. aestivum. Crop Science, Volume 46 no. 4 p. 1622-1629 |
| spellingShingle | awns colour disease resistance fungi geographical distribution glumes land varieties pathogens phenotypic variation plant diseases plant pathogenic fungi rice origin varietal resistance wheat Bonman, J. Michael Bockelman, Harold E. Goates, Blair J. Obert, Don E. McGuire, Patrick E. Qualset, Calvin O. Hijmans, Robert J. Geographic Distribution of Common and Dwarf Bunt Resistance in Landraces of Triticum aestivum subsp. aestivum |
| title | Geographic Distribution of Common and Dwarf Bunt Resistance in Landraces of Triticum aestivum subsp. aestivum |
| title_full | Geographic Distribution of Common and Dwarf Bunt Resistance in Landraces of Triticum aestivum subsp. aestivum |
| title_fullStr | Geographic Distribution of Common and Dwarf Bunt Resistance in Landraces of Triticum aestivum subsp. aestivum |
| title_full_unstemmed | Geographic Distribution of Common and Dwarf Bunt Resistance in Landraces of Triticum aestivum subsp. aestivum |
| title_short | Geographic Distribution of Common and Dwarf Bunt Resistance in Landraces of Triticum aestivum subsp. aestivum |
| title_sort | geographic distribution of common and dwarf bunt resistance in landraces of triticum aestivum subsp aestivum |
| topic | awns colour disease resistance fungi geographical distribution glumes land varieties pathogens phenotypic variation plant diseases plant pathogenic fungi rice origin varietal resistance wheat |
| url | https://hdl.handle.net/10568/166600 |
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