Avances en la obtención de variedades de yuca (Manihot esculenta Crantz) con alta calidad de almidón mediante mutación inducida
The cassava starch presents a little variation in its quality. Although induced mutations are a source of inherited variation for desirable traits, phenotypic expression of mutants is currently difficult to detect due to its heterozygous condition. The objective of this work was to produce M2 popula...
| Autores principales: | , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Español |
| Publicado: |
2007
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/44243 |
| _version_ | 1855538781499686912 |
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| author | Rosero, Elvia Amparo Ceballos, H. Fregene, Martin A. Tofiño Rivera, Adriana Patricia Morante, N Pérez Velásquez, Juan Carlos Castelblanco, W.H. |
| author_browse | Castelblanco, W.H. Ceballos, H. Fregene, Martin A. Morante, N Pérez Velásquez, Juan Carlos Rosero, Elvia Amparo Tofiño Rivera, Adriana Patricia |
| author_facet | Rosero, Elvia Amparo Ceballos, H. Fregene, Martin A. Tofiño Rivera, Adriana Patricia Morante, N Pérez Velásquez, Juan Carlos Castelblanco, W.H. |
| author_sort | Rosero, Elvia Amparo |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The cassava starch presents a little variation in its quality. Although induced mutations are a source of inherited variation for desirable traits, phenotypic expression of mutants is currently difficult to detect due to its heterozygous condition. The objective of this work was to produce M2 populations in order to increase the homozygous level of traits related to starch quality and the phenotypic characterization of irradiated plants (M1) to evaluate the induced variability. Botanical seeds from families CM9331, SM3015, SM3045, GM155, C4, and C127 were irradiated with gamma rays and fast neutrons. Plants were established in an experimental plot in the Research Station of Corpoica-Palmira. Self-pollination was carried out both to eliminate the possible chimerical states as well as to increase the level of homozygosity. In order to identify chimeras and/or useful traits among treatments, a morphological screening were made using 9 quantitative and 18 qualitative parameters. A total of 9707 flowers were self-pollinated. The percentage of surviving plants was 60% and 29% for seeds treated with gamma rays and fast neutrons, respectively. Quantitative descriptors revealed high variability. The main components analysis suggested formation of groups related to ramification and vigor. For qualitative description, chimerical plants in crust color of stem and leaf shape, and remarkable effects on the flower type (e.g., hermaphrodite flower and apomictic behavior) were observed. The multiple correspondence analysis suggested clusters related to the flowering. These results demonstrate the effect of the radiation sources on the phenotypic variability of the population. Future analysis of segregating populations will allow detection of useful variability for traits related with starch quality. |
| format | Journal Article |
| id | CGSpace44243 |
| institution | CGIAR Consortium |
| language | Español |
| publishDate | 2007 |
| publishDateRange | 2007 |
| publishDateSort | 2007 |
| record_format | dspace |
| spelling | CGSpace442432025-05-15T09:40:30Z Avances en la obtención de variedades de yuca (Manihot esculenta Crantz) con alta calidad de almidón mediante mutación inducida Rosero, Elvia Amparo Ceballos, H. Fregene, Martin A. Tofiño Rivera, Adriana Patricia Morante, N Pérez Velásquez, Juan Carlos Castelblanco, W.H. manihot esculenta induced mutation varieties population structure mutación inducida variedades estructura de la población The cassava starch presents a little variation in its quality. Although induced mutations are a source of inherited variation for desirable traits, phenotypic expression of mutants is currently difficult to detect due to its heterozygous condition. The objective of this work was to produce M2 populations in order to increase the homozygous level of traits related to starch quality and the phenotypic characterization of irradiated plants (M1) to evaluate the induced variability. Botanical seeds from families CM9331, SM3015, SM3045, GM155, C4, and C127 were irradiated with gamma rays and fast neutrons. Plants were established in an experimental plot in the Research Station of Corpoica-Palmira. Self-pollination was carried out both to eliminate the possible chimerical states as well as to increase the level of homozygosity. In order to identify chimeras and/or useful traits among treatments, a morphological screening were made using 9 quantitative and 18 qualitative parameters. A total of 9707 flowers were self-pollinated. The percentage of surviving plants was 60% and 29% for seeds treated with gamma rays and fast neutrons, respectively. Quantitative descriptors revealed high variability. The main components analysis suggested formation of groups related to ramification and vigor. For qualitative description, chimerical plants in crust color of stem and leaf shape, and remarkable effects on the flower type (e.g., hermaphrodite flower and apomictic behavior) were observed. The multiple correspondence analysis suggested clusters related to the flowering. These results demonstrate the effect of the radiation sources on the phenotypic variability of the population. Future analysis of segregating populations will allow detection of useful variability for traits related with starch quality. El almidón de yuca presenta escasa variación en su calidad. Las mutaciones inducidas son una fuente de variación heredable para características deseables. Estas mutaciones, aunque se presentaran genéticamente, serian difíciles de detectar fenotípicamente debido a su alta heterocigosidad. El objetivo del trabajo fue producir poblaciones M2 para incrementar la homocigosidad de características relacionadas con almidón y caracterizar fenotípicamente las plantas irradiadas (M1), con el fin de evaluar la variabilidad inducida. Semillas botánicas de las familias CM9331, SM3015, SM3045, GM155, C4 y C127 fueron irradiadas con rayos gamma y neutrones rápidos. Las plantas fueron establecidas en una parcela experimental de Corpoica-Palmira. Se realizaron autopolinizaciones para eliminar el posible estado quimérico e incrementar la homocigosis, evaluaciones morfológicas con 9 descriptores cuantitativos y 18 cualitativos para evaluar los tratamientos, identificar quimeras y/o características de interés. Se autopolinizaron 9707 flores. Se encontró 60% y 29% de plantas sobrevivientes tratadas con rayos gamma y neutrones rápidos, respectivamente. Los descriptores cuantitativos revelaron gran variabilidad, mientras que el análisis de componentes principales mostró la formación de grupos relacionada con ramificación y vigor. Para características cualitativas se encontraron plantas quiméricas en color de corteza del tallo y forma de hoja, efectos notables sobre el tipo de flor (e.g., flores hermafroditas) y un comportamiento similar a la apomixis y unisexualidad. El análisis de correspondencia múltiple mostró agrupamiento relacionado con la floración. Estos resultados demuestran el efecto de las fuentes de radiación sobre la variabilidad fenotípica de la población. El análisis futuro de las poblaciones segregantes permitirá detectar variabilidad útil para características relacionadas con la calidad de almidón. Palabras clave: yuca, Manihot esculenta Crantz, mutación inducida, quimera, descriptor morfológico, almidón ceroso. 2007 2014-10-02T08:33:28Z 2014-10-02T08:33:28Z Journal Article https://hdl.handle.net/10568/44243 es Open Access Rosero, Elvia Amparo; Ceballos, Hernán; Fregene, Martin A.; Tofiño Rivera, Adriana Patricia; Morante, Nelson; Pérez Velásquez, Juan Carlos; Castelblanco, Wilson H.. 2007. Avances en la obtención de variedades de yuca (Manihot esculenta Crantz) con alta calidad de almidón mediante mutación inducida . Fitotecnia Colombiana 7(1):13-23. |
| spellingShingle | manihot esculenta induced mutation varieties population structure mutación inducida variedades estructura de la población Rosero, Elvia Amparo Ceballos, H. Fregene, Martin A. Tofiño Rivera, Adriana Patricia Morante, N Pérez Velásquez, Juan Carlos Castelblanco, W.H. Avances en la obtención de variedades de yuca (Manihot esculenta Crantz) con alta calidad de almidón mediante mutación inducida |
| title | Avances en la obtención de variedades de yuca (Manihot esculenta Crantz) con alta calidad de almidón mediante mutación inducida |
| title_full | Avances en la obtención de variedades de yuca (Manihot esculenta Crantz) con alta calidad de almidón mediante mutación inducida |
| title_fullStr | Avances en la obtención de variedades de yuca (Manihot esculenta Crantz) con alta calidad de almidón mediante mutación inducida |
| title_full_unstemmed | Avances en la obtención de variedades de yuca (Manihot esculenta Crantz) con alta calidad de almidón mediante mutación inducida |
| title_short | Avances en la obtención de variedades de yuca (Manihot esculenta Crantz) con alta calidad de almidón mediante mutación inducida |
| title_sort | avances en la obtencion de variedades de yuca manihot esculenta crantz con alta calidad de almidon mediante mutacion inducida |
| topic | manihot esculenta induced mutation varieties population structure mutación inducida variedades estructura de la población |
| url | https://hdl.handle.net/10568/44243 |
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