Mapeo genético y análisis de QTL para carotenos en una población S1 de yuca
The S1 population of the Thai variety MTAi8 (AM320), which shows patterns of segregation defined by the content of total carotenes (beta-carotene), underwent an analysis of segregating bulk (BSA = Bulk segregating Analysis) using 700 molecular markers type microsatellites or SSR. There were generate...
| Autores principales: | , , |
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| Formato: | Journal Article |
| Lenguaje: | Español |
| Publicado: |
2009
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/44354 |
| _version_ | 1855536545435484160 |
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| author | Marín Colorado, JA Ramírez, H. Fregene, Martin A. |
| author_browse | Fregene, Martin A. Marín Colorado, JA Ramírez, H. |
| author_facet | Marín Colorado, JA Ramírez, H. Fregene, Martin A. |
| author_sort | Marín Colorado, JA |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The S1 population of the Thai variety MTAi8 (AM320), which shows patterns of segregation defined by the content of total carotenes (beta-carotene), underwent an analysis of segregating bulk (BSA = Bulk segregating Analysis) using 700 molecular markers type microsatellites or SSR. There were generated 25 tying groups and identifying 3 major QTLs associated with a region of the genome of cassava with the content of total carotenes. Three markers SSR; explained the 37.2% (NS109), 32% (rSSRY251) and 27.7% (rSSRY313) of the total phenotypic variance, placed in the Group D strongly tying, associated with the content of total carotenes in the family AM320 S1, which established a strong positive correlation between color and content root pulp carotenes total (r = 0.81), and between negative and carotenes total dry matter (r = -0.31). The three possible QTLs showed positive and additive effect for the content of totals carotenes and could be an opportunity to implement assisted selection markers for total carotenes in cassava. |
| format | Journal Article |
| id | CGSpace44354 |
| institution | CGIAR Consortium |
| language | Español |
| publishDate | 2009 |
| publishDateRange | 2009 |
| publishDateSort | 2009 |
| record_format | dspace |
| spelling | CGSpace443542025-05-28T14:52:39Z Mapeo genético y análisis de QTL para carotenos en una población S1 de yuca Genetic mapping and QTL analysis for carotenes in a S1 population of cassava Marín Colorado, JA Ramírez, H. Fregene, Martin A. manihot esculenta carotenoids quantitative trait loci microsatellites genetic markers carotenoides loci de rasgos cuantitativos microsatélites marcadores genéticos The S1 population of the Thai variety MTAi8 (AM320), which shows patterns of segregation defined by the content of total carotenes (beta-carotene), underwent an analysis of segregating bulk (BSA = Bulk segregating Analysis) using 700 molecular markers type microsatellites or SSR. There were generated 25 tying groups and identifying 3 major QTLs associated with a region of the genome of cassava with the content of total carotenes. Three markers SSR; explained the 37.2% (NS109), 32% (rSSRY251) and 27.7% (rSSRY313) of the total phenotypic variance, placed in the Group D strongly tying, associated with the content of total carotenes in the family AM320 S1, which established a strong positive correlation between color and content root pulp carotenes total (r = 0.81), and between negative and carotenes total dry matter (r = -0.31). The three possible QTLs showed positive and additive effect for the content of totals carotenes and could be an opportunity to implement assisted selection markers for total carotenes in cassava. La población S1 de la variedad tailandesa de yuca MTAi8 (AM320), la cual presenta patrones de segregación definidos para el contenido de carotenos totales (Beta-caroteno), se sometió a un análisis de agrupamiento segregante (BSA = Bulk Segregant Analysis) empleando 700 marcadores moleculares tipo microsatélites o SSR. Se generaron 25 grupos de ligamiento identificando 3 QTL mayores asociados con una región del genoma de yuca con el contenido de carotenos totales. Tres marcadores SSR explicaron el 37.2% (NS109), 32% (rSSRY251) y 27.7% (rSSRY313) de la varianza fenotipica total, situados en el grupo de ligamiento D fuertemente asociados con el contenido de carotenos totales en la familia AM320 S1, se estableció una fuerte correlación positiva entre color de pulpa de raíz y contenido de carotenos totales (r=0.81), y negativa entre carotenos totales y materia seca (r= -0.31). Los tres posibles QTL presentaron efecto positivo y de carácter aditivo para el contenido de carotenos totales, pueden ser la oportunidad para implementar selección asistida por marcadores para carotenos totales en yuca. 2009 2014-10-02T08:33:38Z 2014-10-02T08:33:38Z Journal Article https://hdl.handle.net/10568/44354 es Open Access |
| spellingShingle | manihot esculenta carotenoids quantitative trait loci microsatellites genetic markers carotenoides loci de rasgos cuantitativos microsatélites marcadores genéticos Marín Colorado, JA Ramírez, H. Fregene, Martin A. Mapeo genético y análisis de QTL para carotenos en una población S1 de yuca |
| title | Mapeo genético y análisis de QTL para carotenos en una población S1 de yuca |
| title_full | Mapeo genético y análisis de QTL para carotenos en una población S1 de yuca |
| title_fullStr | Mapeo genético y análisis de QTL para carotenos en una población S1 de yuca |
| title_full_unstemmed | Mapeo genético y análisis de QTL para carotenos en una población S1 de yuca |
| title_short | Mapeo genético y análisis de QTL para carotenos en una población S1 de yuca |
| title_sort | mapeo genetico y analisis de qtl para carotenos en una poblacion s1 de yuca |
| topic | manihot esculenta carotenoids quantitative trait loci microsatellites genetic markers carotenoides loci de rasgos cuantitativos microsatélites marcadores genéticos |
| url | https://hdl.handle.net/10568/44354 |
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