Biological implications in cassava for the production of amylose-free starch: impact on root yield and related traits.
Cassava (Manihot esculenta, Crantz) is an important food security crop, but it is becoming an important raw material for different industrial applications. Cassava is the second most important source of starch worldwide. Novel starch properties are of interest to the starch industry, and one them is...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2016-05-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fpls.2016.00604/full |
| _version_ | 1811326363064336384 |
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| author | Amanda eKarlström Sandra eSalazar Fernando eCalle Nelson eMorante Dominique eDufour Hernán eCeballos |
| author_facet | Amanda eKarlström Sandra eSalazar Fernando eCalle Nelson eMorante Dominique eDufour Hernán eCeballos |
| author_sort | Amanda eKarlström |
| collection | DOAJ |
| description | Cassava (Manihot esculenta, Crantz) is an important food security crop, but it is becoming an important raw material for different industrial applications. Cassava is the second most important source of starch worldwide. Novel starch properties are of interest to the starch industry, and one them is the recently identified amylose-free (waxy) cassava starch. Waxy mutants have been found in different crops and have been often associated with a yield penalty. There are ongoing efforts to develop commercial cassava varieties with amylose-free starch. However, little information is available regarding the biological and agronomic implications of starch mutations in cassava, nor in other root and tuber crops. In this study, siblings from eight full-sib families, segregating for the waxy trait, were used to determine if the mutation has implications for yield, dry matter content and harvest index in cassava. A total of 87 waxy and 87 wild-type starch genotypes from the eight families were used in the study. The only significant effect of starch type was on dry matter content (p<0.01), with waxy clones having a 0.8% lower content than their wild type counterparts. There was no effect of starch type on fresh root yield, adjusted fresh root yield and harvest index. It is not clear if lower dry matter content is a pleiotropic effect of the waxy starch mutation or else the result of linked genes introgressed along with the mutation. It is expected that commercial waxy cassava varieties will have competitive fresh root yields but special efforts will be required to attain adequate dry matter contents. This study contributes to the limited knowledge available of the impact of starch mutations on the agronomic performance of root and tuber crops |
| first_indexed | 2024-04-13T14:48:24Z |
| format | Article |
| id | doaj.art-ee2b20f764184487b46717d5e1d90a65 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-04-13T14:48:24Z |
| publishDate | 2016-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-ee2b20f764184487b46717d5e1d90a652022-12-22T02:42:41ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2016-05-01710.3389/fpls.2016.00604182031Biological implications in cassava for the production of amylose-free starch: impact on root yield and related traits.Amanda eKarlström0Sandra eSalazar1Fernando eCalle2Nelson eMorante3Dominique eDufour4Hernán eCeballos5Swedish University of Agricultural Sciences.International Center for Tropical AgricultureInternational Center for Tropical AgricultureInternational Center for Tropical AgricultureCentre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD)International Center for Tropical AgricultureCassava (Manihot esculenta, Crantz) is an important food security crop, but it is becoming an important raw material for different industrial applications. Cassava is the second most important source of starch worldwide. Novel starch properties are of interest to the starch industry, and one them is the recently identified amylose-free (waxy) cassava starch. Waxy mutants have been found in different crops and have been often associated with a yield penalty. There are ongoing efforts to develop commercial cassava varieties with amylose-free starch. However, little information is available regarding the biological and agronomic implications of starch mutations in cassava, nor in other root and tuber crops. In this study, siblings from eight full-sib families, segregating for the waxy trait, were used to determine if the mutation has implications for yield, dry matter content and harvest index in cassava. A total of 87 waxy and 87 wild-type starch genotypes from the eight families were used in the study. The only significant effect of starch type was on dry matter content (p<0.01), with waxy clones having a 0.8% lower content than their wild type counterparts. There was no effect of starch type on fresh root yield, adjusted fresh root yield and harvest index. It is not clear if lower dry matter content is a pleiotropic effect of the waxy starch mutation or else the result of linked genes introgressed along with the mutation. It is expected that commercial waxy cassava varieties will have competitive fresh root yields but special efforts will be required to attain adequate dry matter contents. This study contributes to the limited knowledge available of the impact of starch mutations on the agronomic performance of root and tuber cropshttp://journal.frontiersin.org/Journal/10.3389/fpls.2016.00604/fulleconomic impactwaxy starchYield penaltyRoot and tuber cropscassava markets |
| spellingShingle | Amanda eKarlström Sandra eSalazar Fernando eCalle Nelson eMorante Dominique eDufour Hernán eCeballos Biological implications in cassava for the production of amylose-free starch: impact on root yield and related traits. Frontiers in Plant Science economic impact waxy starch Yield penalty Root and tuber crops cassava markets |
| title | Biological implications in cassava for the production of amylose-free starch: impact on root yield and related traits. |
| title_full | Biological implications in cassava for the production of amylose-free starch: impact on root yield and related traits. |
| title_fullStr | Biological implications in cassava for the production of amylose-free starch: impact on root yield and related traits. |
| title_full_unstemmed | Biological implications in cassava for the production of amylose-free starch: impact on root yield and related traits. |
| title_short | Biological implications in cassava for the production of amylose-free starch: impact on root yield and related traits. |
| title_sort | biological implications in cassava for the production of amylose free starch impact on root yield and related traits |
| topic | economic impact waxy starch Yield penalty Root and tuber crops cassava markets |
| url | http://journal.frontiersin.org/Journal/10.3389/fpls.2016.00604/full |
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