Genetic potential and stability of carotene content in cassava roots
People in vast areas of the tropics suffer from vitamin A deficiency, resulting in progressive eye damage and eventually leading to blindness. Improving the content of vitamin A precursors in staple crops could alleviate or solve such a problem. The objective of this work was to study the range of variability for carotene content in a sub-set of the global cassava germplasm collection, and to determine the inheritance of carotenes, as well as their stability in response to different processing methodologies. Genotypes with more than 2 mg carotenes/100 g of fresh roots have been selected as parental material for population development. Although root colour is highly correlated with carotene content, a quantitative evaluation of genotypes selected by colour is required in order to increase the efficiency of selection. Relatively few major genes are involved in the determination of carotene accumulation in cassava roots. Stability of carotenes in response to different processing methods is genotypically dependant, representing a trait to be evaluated after selecting for high carotene concentration in fresh roots. The results from this work have provided the basis for defining future strategies for the improvement of the nutritional quality of cassava.
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Format: | Journal Article biblioteca |
Language: | English |
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Springer
1997
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Subjects: | manihot esculenta, genetic parameters, genetic stability, carotenoids, roots, germplasm, parametros genéticos, estabilidad genética, carotenoides, raíces, germoplasma, horticulture, genetics, |
Online Access: | https://hdl.handle.net/10568/42901 https://doi.org/10.1023/A:1002962108315 |
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dig-cgspace-10568-429012023-12-08T19:36:04Z Genetic potential and stability of carotene content in cassava roots Iglesias, C.A. Mayer, Jorge Edgard Chavez, L. Calle, F. manihot esculenta genetic parameters genetic stability carotenoids roots germplasm parametros genéticos estabilidad genética carotenoides raíces germoplasma horticulture genetics People in vast areas of the tropics suffer from vitamin A deficiency, resulting in progressive eye damage and eventually leading to blindness. Improving the content of vitamin A precursors in staple crops could alleviate or solve such a problem. The objective of this work was to study the range of variability for carotene content in a sub-set of the global cassava germplasm collection, and to determine the inheritance of carotenes, as well as their stability in response to different processing methodologies. Genotypes with more than 2 mg carotenes/100 g of fresh roots have been selected as parental material for population development. Although root colour is highly correlated with carotene content, a quantitative evaluation of genotypes selected by colour is required in order to increase the efficiency of selection. Relatively few major genes are involved in the determination of carotene accumulation in cassava roots. Stability of carotenes in response to different processing methods is genotypically dependant, representing a trait to be evaluated after selecting for high carotene concentration in fresh roots. The results from this work have provided the basis for defining future strategies for the improvement of the nutritional quality of cassava. 1997 2014-09-24T07:58:44Z 2014-09-24T07:58:44Z Journal Article 1573-5060 https://hdl.handle.net/10568/42901 https://doi.org/10.1023/A:1002962108315 en Limited Access Springer Euphytica |
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manihot esculenta genetic parameters genetic stability carotenoids roots germplasm parametros genéticos estabilidad genética carotenoides raíces germoplasma horticulture genetics manihot esculenta genetic parameters genetic stability carotenoids roots germplasm parametros genéticos estabilidad genética carotenoides raíces germoplasma horticulture genetics |
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manihot esculenta genetic parameters genetic stability carotenoids roots germplasm parametros genéticos estabilidad genética carotenoides raíces germoplasma horticulture genetics manihot esculenta genetic parameters genetic stability carotenoids roots germplasm parametros genéticos estabilidad genética carotenoides raíces germoplasma horticulture genetics Iglesias, C.A. Mayer, Jorge Edgard Chavez, L. Calle, F. Genetic potential and stability of carotene content in cassava roots |
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People in vast areas of the tropics suffer from vitamin A deficiency, resulting in progressive eye damage and eventually leading to blindness. Improving the content of vitamin A precursors in staple crops could alleviate or solve such a problem. The objective of this work was to study the range of variability for carotene content in a sub-set of the global cassava germplasm collection, and to determine the inheritance of carotenes, as well as their stability in response to different processing methodologies. Genotypes with more than 2 mg carotenes/100 g of fresh roots have been selected as parental material for population development. Although root colour is highly correlated with carotene content, a quantitative evaluation of genotypes selected by colour is required in order to increase the efficiency of selection. Relatively few major genes are involved in the determination of carotene accumulation in cassava roots. Stability of carotenes in response to different processing methods is genotypically dependant, representing a trait to be evaluated after selecting for high carotene concentration in fresh roots. The results from this work have provided the basis for defining future strategies for the improvement of the nutritional quality of cassava. |
format |
Journal Article |
topic_facet |
manihot esculenta genetic parameters genetic stability carotenoids roots germplasm parametros genéticos estabilidad genética carotenoides raíces germoplasma horticulture genetics |
author |
Iglesias, C.A. Mayer, Jorge Edgard Chavez, L. Calle, F. |
author_facet |
Iglesias, C.A. Mayer, Jorge Edgard Chavez, L. Calle, F. |
author_sort |
Iglesias, C.A. |
title |
Genetic potential and stability of carotene content in cassava roots |
title_short |
Genetic potential and stability of carotene content in cassava roots |
title_full |
Genetic potential and stability of carotene content in cassava roots |
title_fullStr |
Genetic potential and stability of carotene content in cassava roots |
title_full_unstemmed |
Genetic potential and stability of carotene content in cassava roots |
title_sort |
genetic potential and stability of carotene content in cassava roots |
publisher |
Springer |
publishDate |
1997 |
url |
https://hdl.handle.net/10568/42901 https://doi.org/10.1023/A:1002962108315 |
work_keys_str_mv |
AT iglesiasca geneticpotentialandstabilityofcarotenecontentincassavaroots AT mayerjorgeedgard geneticpotentialandstabilityofcarotenecontentincassavaroots AT chavezl geneticpotentialandstabilityofcarotenecontentincassavaroots AT callef geneticpotentialandstabilityofcarotenecontentincassavaroots |
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1787228439429775360 |