Changes in barley (Hordeum vulgare L. subsp. vulgare) genetic diversity and structure in Jordan over a period of 31 years
In many regions of the world, the cultivation of landraces is still common, in particular in centres of crop diversity. Significant effort has been put intoex situconservation of landraces but limited data exist on the changes in genetic diversity that occur over time in farmers’ fields. We assessed...
| Autores principales: | , , , , , , , , , |
|---|---|
| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Cambridge University Press
2018
|
| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/81151 |
| _version_ | 1855527683114401792 |
|---|---|
| author | Thormann, I. Reeves, P. Thumm, S. Reilley, A. Engels, J. Biradar, Chandrashekhar M. Lohwasser, U. Borner, A. Pillen, K. Richards, C.M. |
| author_browse | Biradar, Chandrashekhar M. Borner, A. Engels, J. Lohwasser, U. Pillen, K. Reeves, P. Reilley, A. Richards, C.M. Thormann, I. Thumm, S. |
| author_facet | Thormann, I. Reeves, P. Thumm, S. Reilley, A. Engels, J. Biradar, Chandrashekhar M. Lohwasser, U. Borner, A. Pillen, K. Richards, C.M. |
| author_sort | Thormann, I. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | In many regions of the world, the cultivation of landraces is still common, in particular in centres of crop diversity. Significant effort has been put intoex situconservation of landraces but limited data exist on the changes in genetic diversity that occur over time in farmers’ fields. We assessed temporal changes in barley landrace diversity in Jordan using seed samples collected in 1981 and 2012 from the same locations. We did not observe significant changes in the amount of genetic diversity, but samples collected in 2012 were more homogenous and less locally distinct. In two sites, we observed replacement of the old material. We observed a change in phenotype, and phenotypes were found to be more homogeneous among sites in 2012. Climate changed significantly over the study period, becoming hotter and dryer, but we did not identify any correlation between the changes in climate and genetic and phenotypic variations. While the amount of genetic diversity in terms of allelic richness and number of multi-locus genotypes has been maintained, local distinctiveness among landrace barley populations in Jordan was reduced. |
| format | Journal Article |
| id | CGSpace81151 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Cambridge University Press |
| publisherStr | Cambridge University Press |
| record_format | dspace |
| spelling | CGSpace811512025-12-08T09:54:28Z Changes in barley (Hordeum vulgare L. subsp. vulgare) genetic diversity and structure in Jordan over a period of 31 years Thormann, I. Reeves, P. Thumm, S. Reilley, A. Engels, J. Biradar, Chandrashekhar M. Lohwasser, U. Borner, A. Pillen, K. Richards, C.M. hordeum vulgare genetic erosion land races phenotypes genetic variation In many regions of the world, the cultivation of landraces is still common, in particular in centres of crop diversity. Significant effort has been put intoex situconservation of landraces but limited data exist on the changes in genetic diversity that occur over time in farmers’ fields. We assessed temporal changes in barley landrace diversity in Jordan using seed samples collected in 1981 and 2012 from the same locations. We did not observe significant changes in the amount of genetic diversity, but samples collected in 2012 were more homogenous and less locally distinct. In two sites, we observed replacement of the old material. We observed a change in phenotype, and phenotypes were found to be more homogeneous among sites in 2012. Climate changed significantly over the study period, becoming hotter and dryer, but we did not identify any correlation between the changes in climate and genetic and phenotypic variations. While the amount of genetic diversity in terms of allelic richness and number of multi-locus genotypes has been maintained, local distinctiveness among landrace barley populations in Jordan was reduced. 2018-04 2017-05-22T09:55:22Z 2017-05-22T09:55:22Z Journal Article https://hdl.handle.net/10568/81151 en Limited Access Cambridge University Press Thormann, I.; Reeves, P.; Thumm, S.; Reilley, A.; Engels, J.; Biradar, C.; Lohwasser, U.; Borner, A.; Pillen, K.; Richards, C.M. (2017) Changes in barley (Hordeum vulgare L. subsp. vulgare) genetic diversity and structure in Jordan over a period of 31 years. Plant Genetic Resources: Characterization and Utilization, On-line first paper (15 May 2017) p. 1-15. ISSN: 1479-2621 |
| spellingShingle | hordeum vulgare genetic erosion land races phenotypes genetic variation Thormann, I. Reeves, P. Thumm, S. Reilley, A. Engels, J. Biradar, Chandrashekhar M. Lohwasser, U. Borner, A. Pillen, K. Richards, C.M. Changes in barley (Hordeum vulgare L. subsp. vulgare) genetic diversity and structure in Jordan over a period of 31 years |
| title | Changes in barley (Hordeum vulgare L. subsp. vulgare) genetic diversity and structure in Jordan over a period of 31 years |
| title_full | Changes in barley (Hordeum vulgare L. subsp. vulgare) genetic diversity and structure in Jordan over a period of 31 years |
| title_fullStr | Changes in barley (Hordeum vulgare L. subsp. vulgare) genetic diversity and structure in Jordan over a period of 31 years |
| title_full_unstemmed | Changes in barley (Hordeum vulgare L. subsp. vulgare) genetic diversity and structure in Jordan over a period of 31 years |
| title_short | Changes in barley (Hordeum vulgare L. subsp. vulgare) genetic diversity and structure in Jordan over a period of 31 years |
| title_sort | changes in barley hordeum vulgare l subsp vulgare genetic diversity and structure in jordan over a period of 31 years |
| topic | hordeum vulgare genetic erosion land races phenotypes genetic variation |
| url | https://hdl.handle.net/10568/81151 |
| work_keys_str_mv | AT thormanni changesinbarleyhordeumvulgarelsubspvulgaregeneticdiversityandstructureinjordanoveraperiodof31years AT reevesp changesinbarleyhordeumvulgarelsubspvulgaregeneticdiversityandstructureinjordanoveraperiodof31years AT thumms changesinbarleyhordeumvulgarelsubspvulgaregeneticdiversityandstructureinjordanoveraperiodof31years AT reilleya changesinbarleyhordeumvulgarelsubspvulgaregeneticdiversityandstructureinjordanoveraperiodof31years AT engelsj changesinbarleyhordeumvulgarelsubspvulgaregeneticdiversityandstructureinjordanoveraperiodof31years AT biradarchandrashekharm changesinbarleyhordeumvulgarelsubspvulgaregeneticdiversityandstructureinjordanoveraperiodof31years AT lohwasseru changesinbarleyhordeumvulgarelsubspvulgaregeneticdiversityandstructureinjordanoveraperiodof31years AT bornera changesinbarleyhordeumvulgarelsubspvulgaregeneticdiversityandstructureinjordanoveraperiodof31years AT pillenk changesinbarleyhordeumvulgarelsubspvulgaregeneticdiversityandstructureinjordanoveraperiodof31years AT richardscm changesinbarleyhordeumvulgarelsubspvulgaregeneticdiversityandstructureinjordanoveraperiodof31years |