Genome mapping in cassava improvement: Challenges, achievements and opportunities
Breeding goals of yield increases, root quality improvement, and disease resistance in cassava are considerably slowed down by biological characteristics of the crop, which includes a long growth cycle, a heterozygous genetic background and a poor knowledge of the organization of crop diversity. The...
| Autores principales: | , , , , , , , , , |
|---|---|
| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Springer
2001
|
| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/42913 |
| _version_ | 1855537696045268992 |
|---|---|
| author | Fregene, Martin A. Okogbenin, Emmanuel Mba, C Angel, F. Suarez, MC Gutiérrez Artunduaga, Janneth Patricia Chavarriaga Aguirre, Paul Roca, W. Bonierbale, Merideth W. Tohme, Joseph M. |
| author_browse | Angel, F. Bonierbale, Merideth W. Chavarriaga Aguirre, Paul Fregene, Martin A. Gutiérrez Artunduaga, Janneth Patricia Mba, C Okogbenin, Emmanuel Roca, W. Suarez, MC Tohme, Joseph M. |
| author_facet | Fregene, Martin A. Okogbenin, Emmanuel Mba, C Angel, F. Suarez, MC Gutiérrez Artunduaga, Janneth Patricia Chavarriaga Aguirre, Paul Roca, W. Bonierbale, Merideth W. Tohme, Joseph M. |
| author_sort | Fregene, Martin A. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Breeding goals of yield increases, root quality improvement, and disease resistance in cassava are considerably slowed down by biological characteristics of the crop, which includes a long growth cycle, a heterozygous genetic background and a poor knowledge of the organization of crop diversity. These factors severely hamper the speed and ease of moving around useful genes in cassava. The consequences are that cassava production fails to keep up with demand, especially in regions where over90% of yield is consumed as food, leading to an increase in acreage of cassava fields mostly into marginal lands. The advent of molecular markers,genome studies and plant genetic transformation holds promise of providing ways around breeding obstacles in long growth cycle and heterozygous crops. A number of these new tools, including a molecular genetic map, markers linked to disease resistance genes, and marker-aided studies of complex traits now exist or are being developed for cassava at CIAT. Large scale sequencing and mapping of expressed sequence tags(ESTs) have been initiated, towards a transcript map of cassava and the implementation of the candidate-gene approach to complex trait mapping. A cassava bacterial artificial chromosome (BAC) library has also been constructed to expedite positional cloning of genes, known only by their phenotypes and their position relative to markers on a molecular genetic map and complementation studies of candidate loci. Studies of genes that control traits of agronomic importance, and their allelic diversity in nature,provides powerful tools for understanding the basis of crop performance and improvement. |
| format | Journal Article |
| id | CGSpace42913 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2001 |
| publishDateRange | 2001 |
| publishDateSort | 2001 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace429132024-08-29T11:41:34Z Genome mapping in cassava improvement: Challenges, achievements and opportunities Fregene, Martin A. Okogbenin, Emmanuel Mba, C Angel, F. Suarez, MC Gutiérrez Artunduaga, Janneth Patricia Chavarriaga Aguirre, Paul Roca, W. Bonierbale, Merideth W. Tohme, Joseph M. manihot esculenta genomes genetic maps disease resistance genetic markers genomas mapas genéticos resistencia a la enfermedad marcadores genéticos Breeding goals of yield increases, root quality improvement, and disease resistance in cassava are considerably slowed down by biological characteristics of the crop, which includes a long growth cycle, a heterozygous genetic background and a poor knowledge of the organization of crop diversity. These factors severely hamper the speed and ease of moving around useful genes in cassava. The consequences are that cassava production fails to keep up with demand, especially in regions where over90% of yield is consumed as food, leading to an increase in acreage of cassava fields mostly into marginal lands. The advent of molecular markers,genome studies and plant genetic transformation holds promise of providing ways around breeding obstacles in long growth cycle and heterozygous crops. A number of these new tools, including a molecular genetic map, markers linked to disease resistance genes, and marker-aided studies of complex traits now exist or are being developed for cassava at CIAT. Large scale sequencing and mapping of expressed sequence tags(ESTs) have been initiated, towards a transcript map of cassava and the implementation of the candidate-gene approach to complex trait mapping. A cassava bacterial artificial chromosome (BAC) library has also been constructed to expedite positional cloning of genes, known only by their phenotypes and their position relative to markers on a molecular genetic map and complementation studies of candidate loci. Studies of genes that control traits of agronomic importance, and their allelic diversity in nature,provides powerful tools for understanding the basis of crop performance and improvement. 2001 2014-09-24T07:58:45Z 2014-09-24T07:58:45Z Journal Article https://hdl.handle.net/10568/42913 en Limited Access Springer |
| spellingShingle | manihot esculenta genomes genetic maps disease resistance genetic markers genomas mapas genéticos resistencia a la enfermedad marcadores genéticos Fregene, Martin A. Okogbenin, Emmanuel Mba, C Angel, F. Suarez, MC Gutiérrez Artunduaga, Janneth Patricia Chavarriaga Aguirre, Paul Roca, W. Bonierbale, Merideth W. Tohme, Joseph M. Genome mapping in cassava improvement: Challenges, achievements and opportunities |
| title | Genome mapping in cassava improvement: Challenges, achievements and opportunities |
| title_full | Genome mapping in cassava improvement: Challenges, achievements and opportunities |
| title_fullStr | Genome mapping in cassava improvement: Challenges, achievements and opportunities |
| title_full_unstemmed | Genome mapping in cassava improvement: Challenges, achievements and opportunities |
| title_short | Genome mapping in cassava improvement: Challenges, achievements and opportunities |
| title_sort | genome mapping in cassava improvement challenges achievements and opportunities |
| topic | manihot esculenta genomes genetic maps disease resistance genetic markers genomas mapas genéticos resistencia a la enfermedad marcadores genéticos |
| url | https://hdl.handle.net/10568/42913 |
| work_keys_str_mv | AT fregenemartina genomemappingincassavaimprovementchallengesachievementsandopportunities AT okogbeninemmanuel genomemappingincassavaimprovementchallengesachievementsandopportunities AT mbac genomemappingincassavaimprovementchallengesachievementsandopportunities AT angelf genomemappingincassavaimprovementchallengesachievementsandopportunities AT suarezmc genomemappingincassavaimprovementchallengesachievementsandopportunities AT gutierrezartunduagajannethpatricia genomemappingincassavaimprovementchallengesachievementsandopportunities AT chavarriagaaguirrepaul genomemappingincassavaimprovementchallengesachievementsandopportunities AT rocaw genomemappingincassavaimprovementchallengesachievementsandopportunities AT bonierbalemeridethw genomemappingincassavaimprovementchallengesachievementsandopportunities AT tohmejosephm genomemappingincassavaimprovementchallengesachievementsandopportunities |