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Mapping of chromosome arm 7DL of Triticum aestivum L.
Thesis (MSc (Genetics))--University of Stellenbosch, 2005.
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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Stellenbosch : University of Stellenbosch
2006
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| _version_ | 1867613846992060416 |
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| access_status_str | Open Access |
| author | Heyns, I. C. |
| author2 | Marais, G. F. |
| author_browse | Heyns, I. C. Marais, G. F. |
| author_facet | Marais, G. F. Heyns, I. C. |
| author_sort | Heyns, I. C. |
| collection | Thesis |
| dc_rights_str_mv | University of Stellenbosch |
| description | Thesis (MSc (Genetics))--University of Stellenbosch, 2005. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/1584 |
| institution | Stellenbosch University (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:42:38.497Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2006 |
| publishDateRange | 2006 |
| publishDateSort | 2006 |
| publisher | Stellenbosch : University of Stellenbosch |
| publisherStr | Stellenbosch : University of Stellenbosch |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/1584 Mapping of chromosome arm 7DL of Triticum aestivum L. Heyns, I. C. Marais, G. F. University of Stellenbosch. Faculty of Agrisciences. Dept. of Genetics. Dissertations -- Genetics Theses -- Genetics Wheat -- Disease and pest resistance Wheat -- Genetic engineering Gene mapping Russian wheat aphid -- Biological control Thesis (MSc (Genetics))--University of Stellenbosch, 2005. The Russian wheat aphid, Diuraphis noxia (Mordvilko), is a serious insect pest of wheat and barley. It affects the quality and yield of grain by sucking plant sap from the newest growth whilst toxic substances are injected that destroy plant tissue. The Russian wheat aphid also acts as a vector of plant viruses. The cultivation of aphid resistant cultivars is the preferred control strategy and nine resistance genes, designated Dn1 to Dn9, have been identified. Another undesignated gene, Dnx, was found in the wheat accession PI220127. Mapping of the resistance genes relative to known markers will improve their use in breeding programs. The dominant RWA resistance gene, Dn5, was identified in the accession PI294994 and mapped to chromosome arm 7DL. However, recent reports have placed Dn5 on ... Masters 2006-11-21T07:12:49Z 2010-06-01T08:27:55Z 2006-11-21T07:12:49Z 2010-06-01T08:27:55Z 2005-03 Thesis http://hdl.handle.net/10019.1/1584 en University of Stellenbosch 3466754 bytes application/pdf application/pdf Stellenbosch : University of Stellenbosch |
| spellingShingle | Dissertations -- Genetics Theses -- Genetics Wheat -- Disease and pest resistance Wheat -- Genetic engineering Gene mapping Russian wheat aphid -- Biological control Heyns, I. C. Mapping of chromosome arm 7DL of Triticum aestivum L. |
| title | Mapping of chromosome arm 7DL of Triticum aestivum L. |
| title_full | Mapping of chromosome arm 7DL of Triticum aestivum L. |
| title_fullStr | Mapping of chromosome arm 7DL of Triticum aestivum L. |
| title_full_unstemmed | Mapping of chromosome arm 7DL of Triticum aestivum L. |
| title_short | Mapping of chromosome arm 7DL of Triticum aestivum L. |
| title_sort | mapping of chromosome arm 7dl of triticum aestivum l |
| topic | Dissertations -- Genetics Theses -- Genetics Wheat -- Disease and pest resistance Wheat -- Genetic engineering Gene mapping Russian wheat aphid -- Biological control |
| url | http://hdl.handle.net/10019.1/1584 |
| work_keys_str_mv | AT heynsic mappingofchromosomearm7dloftriticumaestivuml |