Genetic control of dry matter, starch and sugar content in sweetpotato
Sweetpotato (Ipomoea batatas L. (Lam)) is a nutritious food security crop for most tropical households, but its utilisation is very low in Ghana compared to the other root and tuber crops due to lack of end-user-preferred cultivars. Knowledge on the genetic control of important traits such as dry ma...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2017-02-01
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| Series: | Acta Agriculturae Scandinavica. Section B, Soil and Plant Science |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/09064710.2016.1225813 |
| _version_ | 1797684426412392448 |
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| author | Ernest Baafi Vernon E. Gracen Joe Manu-Aduening Essie T. Blay Kwadwo Ofori Edward E. Carey |
| author_facet | Ernest Baafi Vernon E. Gracen Joe Manu-Aduening Essie T. Blay Kwadwo Ofori Edward E. Carey |
| author_sort | Ernest Baafi |
| collection | DOAJ |
| description | Sweetpotato (Ipomoea batatas L. (Lam)) is a nutritious food security crop for most tropical households, but its utilisation is very low in Ghana compared to the other root and tuber crops due to lack of end-user-preferred cultivars. Knowledge on the genetic control of important traits such as dry matter, starch and sugar content of sweetpotato storage roots in a breeding population is critical for making breeding progress in developing sweetpotato varieties preferred by farmers and consumers. This study used diallel mating design to elucidate general combining ability and specific combining ability, to determine the gene action controlling storage root dry matter, starch and sugar content in sweetpotato and the heterotic potential of the traits to facilitate the crop’s improvement for increased utilisation. A general model for estimating genetic effects, GEAN II, was used to analyse the data. Genetic variability was seen for dry matter, starch and sugar content of sweetpotato and much of this genetic variation was additive in nature. The study also revealed significant heterosis in sweetpotato which offers opportunity for breeding non-sweet, high dry matter sweetpotato varieties that are preferred by farmers and consumers in Ghana. |
| first_indexed | 2024-03-12T00:30:29Z |
| format | Article |
| id | doaj.art-bb245c1088de4c0d9622671680dd5473 |
| institution | Directory Open Access Journal |
| issn | 0906-4710 1651-1913 |
| language | English |
| last_indexed | 2024-03-12T00:30:29Z |
| publishDate | 2017-02-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Acta Agriculturae Scandinavica. Section B, Soil and Plant Science |
| spelling | doaj.art-bb245c1088de4c0d9622671680dd54732023-09-15T10:21:31ZengTaylor & Francis GroupActa Agriculturae Scandinavica. Section B, Soil and Plant Science0906-47101651-19132017-02-0167211011810.1080/09064710.2016.12258131225813Genetic control of dry matter, starch and sugar content in sweetpotatoErnest Baafi0Vernon E. Gracen1Joe Manu-Aduening2Essie T. Blay3Kwadwo Ofori4Edward E. Carey5CSIR-Crops Research InstituteUniversity of GhanaCSIR-Crops Research InstituteUniversity of GhanaUniversity of GhanaInternational Potato Centre (CIP)Sweetpotato (Ipomoea batatas L. (Lam)) is a nutritious food security crop for most tropical households, but its utilisation is very low in Ghana compared to the other root and tuber crops due to lack of end-user-preferred cultivars. Knowledge on the genetic control of important traits such as dry matter, starch and sugar content of sweetpotato storage roots in a breeding population is critical for making breeding progress in developing sweetpotato varieties preferred by farmers and consumers. This study used diallel mating design to elucidate general combining ability and specific combining ability, to determine the gene action controlling storage root dry matter, starch and sugar content in sweetpotato and the heterotic potential of the traits to facilitate the crop’s improvement for increased utilisation. A general model for estimating genetic effects, GEAN II, was used to analyse the data. Genetic variability was seen for dry matter, starch and sugar content of sweetpotato and much of this genetic variation was additive in nature. The study also revealed significant heterosis in sweetpotato which offers opportunity for breeding non-sweet, high dry matter sweetpotato varieties that are preferred by farmers and consumers in Ghana.http://dx.doi.org/10.1080/09064710.2016.1225813additive effectbreedinggcagenetic variabilityheterosisnon-additive effectsca |
| spellingShingle | Ernest Baafi Vernon E. Gracen Joe Manu-Aduening Essie T. Blay Kwadwo Ofori Edward E. Carey Genetic control of dry matter, starch and sugar content in sweetpotato Acta Agriculturae Scandinavica. Section B, Soil and Plant Science additive effect breeding gca genetic variability heterosis non-additive effect sca |
| title | Genetic control of dry matter, starch and sugar content in sweetpotato |
| title_full | Genetic control of dry matter, starch and sugar content in sweetpotato |
| title_fullStr | Genetic control of dry matter, starch and sugar content in sweetpotato |
| title_full_unstemmed | Genetic control of dry matter, starch and sugar content in sweetpotato |
| title_short | Genetic control of dry matter, starch and sugar content in sweetpotato |
| title_sort | genetic control of dry matter starch and sugar content in sweetpotato |
| topic | additive effect breeding gca genetic variability heterosis non-additive effect sca |
| url | http://dx.doi.org/10.1080/09064710.2016.1225813 |
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