Genetic diversity of wild, weedy and cultivated acccessions of Brassica rapa
Restriction Fragment Length Polymorphisms (RFLPs) were used to study the genetic diversity within and between accessions of 'wild' and cultivated B. rapa. Two of the wild accessions were likely to be escapes from cultivation because of their geographical origins (Argentina and California). The natur...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
1995
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| Online Access: | https://hdl.handle.net/10568/100887 |
| _version_ | 1855517793344028672 |
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| author | Crouch, J.H. Lewis, B.G. Lydiate, D.J. Mithen, R.F. |
| author_browse | Crouch, J.H. Lewis, B.G. Lydiate, D.J. Mithen, R.F. |
| author_facet | Crouch, J.H. Lewis, B.G. Lydiate, D.J. Mithen, R.F. |
| author_sort | Crouch, J.H. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Restriction Fragment Length Polymorphisms (RFLPs) were used to study the genetic diversity within and between accessions of 'wild' and cultivated B. rapa. Two of the wild accessions were likely to be escapes from cultivation because of their geographical origins (Argentina and California). The nature of the other three wild accessions (from Turkey, Algeria and Sicily) was not known. Principal components analysis placed the Argentinian, Californian and Turkish accessions within a cluster which contained all the cultivated forms of B. rapa. The other two B. rapa accessions were genetically divergent and, on the basis of their RFLP genotypes, would have been considered to be more distant from the cultivated forms of B. rapa than accessions of B. nigra and B. montana. The implications of these results for germplasm conservation, selection of material for breeding programmes and phylogenetic studies on the origin of Brassica crops are discussed. |
| format | Journal Article |
| id | CGSpace100887 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1995 |
| publishDateRange | 1995 |
| publishDateSort | 1995 |
| record_format | dspace |
| spelling | CGSpace1008872023-02-15T06:45:30Z Genetic diversity of wild, weedy and cultivated acccessions of Brassica rapa Crouch, J.H. Lewis, B.G. Lydiate, D.J. Mithen, R.F. genetics breeding germplasm Restriction Fragment Length Polymorphisms (RFLPs) were used to study the genetic diversity within and between accessions of 'wild' and cultivated B. rapa. Two of the wild accessions were likely to be escapes from cultivation because of their geographical origins (Argentina and California). The nature of the other three wild accessions (from Turkey, Algeria and Sicily) was not known. Principal components analysis placed the Argentinian, Californian and Turkish accessions within a cluster which contained all the cultivated forms of B. rapa. The other two B. rapa accessions were genetically divergent and, on the basis of their RFLP genotypes, would have been considered to be more distant from the cultivated forms of B. rapa than accessions of B. nigra and B. montana. The implications of these results for germplasm conservation, selection of material for breeding programmes and phylogenetic studies on the origin of Brassica crops are discussed. 1995 2019-04-24T12:29:31Z 2019-04-24T12:29:31Z Journal Article https://hdl.handle.net/10568/100887 en Limited Access Crouch, J.H., Lewis, B.G., Lydiate, D.J. & Mithen, R.F. (1995). Genetic diversity of wild, weedy and cultivated acccessions of Brassica rapa. Heredity, 74(5), 491-496. |
| spellingShingle | genetics breeding germplasm Crouch, J.H. Lewis, B.G. Lydiate, D.J. Mithen, R.F. Genetic diversity of wild, weedy and cultivated acccessions of Brassica rapa |
| title | Genetic diversity of wild, weedy and cultivated acccessions of Brassica rapa |
| title_full | Genetic diversity of wild, weedy and cultivated acccessions of Brassica rapa |
| title_fullStr | Genetic diversity of wild, weedy and cultivated acccessions of Brassica rapa |
| title_full_unstemmed | Genetic diversity of wild, weedy and cultivated acccessions of Brassica rapa |
| title_short | Genetic diversity of wild, weedy and cultivated acccessions of Brassica rapa |
| title_sort | genetic diversity of wild weedy and cultivated acccessions of brassica rapa |
| topic | genetics breeding germplasm |
| url | https://hdl.handle.net/10568/100887 |
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