Extent and structure of genetic diversity in a collection of the tropical multipurpose shrub legume Cratylia argentea (Desv.) O. kuntze as revealed by RAPD markers
The tropical multipurpose shrub legume Cratylia argentea is well adapted to acid soils of low to medium fertility and has excellent drought-tolerance. Due to its high nutritive value it is particularly suited as forage for dry-season supplementation. A collection of 47 C. argentea accessions in a co...
| Autores principales: | , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2007
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/42848 |
| _version_ | 1855514726318997504 |
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| author | Andersson, Meike S. Schultze-Kraft, Rainer Peters, Michael Duque E., Myriam Cristina Gallego Sánchez, Gerardo J. |
| author_browse | Andersson, Meike S. Duque E., Myriam Cristina Gallego Sánchez, Gerardo J. Peters, Michael Schultze-Kraft, Rainer |
| author_facet | Andersson, Meike S. Schultze-Kraft, Rainer Peters, Michael Duque E., Myriam Cristina Gallego Sánchez, Gerardo J. |
| author_sort | Andersson, Meike S. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The tropical multipurpose shrub legume Cratylia argentea is well adapted to acid soils of low to medium fertility and has excellent drought-tolerance. Due to its high nutritive value it is particularly suited as forage for dry-season supplementation. A collection of 47 C. argentea accessions in a collection, derived from seed replicating of original accessions with differing geographic origin and morphological and agronomic characteristics was investigated using molecular markers (RAPD (random amplified polymorphic DNA)). Genetic diversity (HT = 0.145) in the collection was low, with 30% of differentiation among groups and high genetic similarity among accessions (GS = 0.805). Within-accession variability was high. One taxonomic mismatch and five possible duplicate accessions were identified. Our results suggest that the genetic diversity in the C. argentea accessions studied is relatively homogeneously distributed, indicating the likelihood of extensive outcrossing. The genetic diversity of original accessions should be assessed to determine if outcrossing has occurred during or before ex situ storage. This might also support any decision on whether accessions should be bulked rather than maintaining them individually. |
| format | Journal Article |
| id | CGSpace42848 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2007 |
| publishDateRange | 2007 |
| publishDateSort | 2007 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace428482024-11-15T08:52:05Z Extent and structure of genetic diversity in a collection of the tropical multipurpose shrub legume Cratylia argentea (Desv.) O. kuntze as revealed by RAPD markers Andersson, Meike S. Schultze-Kraft, Rainer Peters, Michael Duque E., Myriam Cristina Gallego Sánchez, Gerardo J. feed crops cratylia genetic variation multipurpose trees germplasm collections genetic markers rapd variación genética arboles de propósito múltiple colecciones de material genético marcadores genéticos biotechnology The tropical multipurpose shrub legume Cratylia argentea is well adapted to acid soils of low to medium fertility and has excellent drought-tolerance. Due to its high nutritive value it is particularly suited as forage for dry-season supplementation. A collection of 47 C. argentea accessions in a collection, derived from seed replicating of original accessions with differing geographic origin and morphological and agronomic characteristics was investigated using molecular markers (RAPD (random amplified polymorphic DNA)). Genetic diversity (HT = 0.145) in the collection was low, with 30% of differentiation among groups and high genetic similarity among accessions (GS = 0.805). Within-accession variability was high. One taxonomic mismatch and five possible duplicate accessions were identified. Our results suggest that the genetic diversity in the C. argentea accessions studied is relatively homogeneously distributed, indicating the likelihood of extensive outcrossing. The genetic diversity of original accessions should be assessed to determine if outcrossing has occurred during or before ex situ storage. This might also support any decision on whether accessions should be bulked rather than maintaining them individually. 2007-07-15 2014-09-24T07:58:40Z 2014-09-24T07:58:40Z Journal Article https://hdl.handle.net/10568/42848 en Open Access Elsevier |
| spellingShingle | feed crops cratylia genetic variation multipurpose trees germplasm collections genetic markers rapd variación genética arboles de propósito múltiple colecciones de material genético marcadores genéticos biotechnology Andersson, Meike S. Schultze-Kraft, Rainer Peters, Michael Duque E., Myriam Cristina Gallego Sánchez, Gerardo J. Extent and structure of genetic diversity in a collection of the tropical multipurpose shrub legume Cratylia argentea (Desv.) O. kuntze as revealed by RAPD markers |
| title | Extent and structure of genetic diversity in a collection of the tropical multipurpose shrub legume Cratylia argentea (Desv.) O. kuntze as revealed by RAPD markers |
| title_full | Extent and structure of genetic diversity in a collection of the tropical multipurpose shrub legume Cratylia argentea (Desv.) O. kuntze as revealed by RAPD markers |
| title_fullStr | Extent and structure of genetic diversity in a collection of the tropical multipurpose shrub legume Cratylia argentea (Desv.) O. kuntze as revealed by RAPD markers |
| title_full_unstemmed | Extent and structure of genetic diversity in a collection of the tropical multipurpose shrub legume Cratylia argentea (Desv.) O. kuntze as revealed by RAPD markers |
| title_short | Extent and structure of genetic diversity in a collection of the tropical multipurpose shrub legume Cratylia argentea (Desv.) O. kuntze as revealed by RAPD markers |
| title_sort | extent and structure of genetic diversity in a collection of the tropical multipurpose shrub legume cratylia argentea desv o kuntze as revealed by rapd markers |
| topic | feed crops cratylia genetic variation multipurpose trees germplasm collections genetic markers rapd variación genética arboles de propósito múltiple colecciones de material genético marcadores genéticos biotechnology |
| url | https://hdl.handle.net/10568/42848 |
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