Genetic analysis and association of simple sequence repeat markers with storage root yield, dry matter, starch and β-carotene content in sweetpotato
Molecular markers are needed for enhancing the development of elite sweetpotato (Ipomoea batatas (L.) Lam) cultivars with a wide range of commercially important traits in sub-Saharan Africa. This study was conducted to estimate the heritability and determine trait correlations of storage root yield,...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Japanese Society of Breeding
2017
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/91987 |
| _version_ | 1855531201052278784 |
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| author | Yada, B. Brown-Guedira, Gina Alajo, A. Ssemakula, G.N. Owusu-Mensah, E. Carey, E.E. Mwanga, Robert O.M. Yencho, George Craig |
| author_browse | Alajo, A. Brown-Guedira, Gina Carey, E.E. Mwanga, Robert O.M. Owusu-Mensah, E. Ssemakula, G.N. Yada, B. Yencho, George Craig |
| author_facet | Yada, B. Brown-Guedira, Gina Alajo, A. Ssemakula, G.N. Owusu-Mensah, E. Carey, E.E. Mwanga, Robert O.M. Yencho, George Craig |
| author_sort | Yada, B. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Molecular markers are needed for enhancing the development of elite sweetpotato (Ipomoea batatas (L.) Lam) cultivars with a wide range of commercially important traits in sub-Saharan Africa. This study was conducted to estimate the heritability and determine trait correlations of storage root yield, dry matter, starch and <beta>-carotene content in a cross between ‘New Kawogo’ x ‘Beauregard’. The study was also conducted to identify simple sequence repeat (SSR) markers associated with these traits. A total of 287 progeny and the parents were evaluated for two seasons at three sites in Uganda and genotyped with 250 SSR markers. Broad sense heritability (H2) for storage root yield, dry matter, starch and <beta>-carotene content were 0.24, 0.68, 0.70 and 0.90, respectively. Storage root <beta>-carotene content was negatively correlated with dry matter (r = -0.59, P < 0.001) and starch (r = -0.93, P < 0.001) content, while storage root yield was positively correlated with dry matter (r = 0.57, P = 0.029) and starch (r = 0.41, P = 0.008) content. Through logistic regression, a total of 12, 4, 6 and 8 SSR markers were associated with storage root yield, dry matter, starch and <beta>-carotene content, respectively. The SSR markers used in this study may be useful for quantitative trait loci analysis and selection for these traits in future. |
| format | Journal Article |
| id | CGSpace91987 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| publisher | Japanese Society of Breeding |
| publisherStr | Japanese Society of Breeding |
| record_format | dspace |
| spelling | CGSpace919872024-11-14T08:04:53Z Genetic analysis and association of simple sequence repeat markers with storage root yield, dry matter, starch and β-carotene content in sweetpotato Yada, B. Brown-Guedira, Gina Alajo, A. Ssemakula, G.N. Owusu-Mensah, E. Carey, E.E. Mwanga, Robert O.M. Yencho, George Craig sweet potatoes heritability yields microsatellites Molecular markers are needed for enhancing the development of elite sweetpotato (Ipomoea batatas (L.) Lam) cultivars with a wide range of commercially important traits in sub-Saharan Africa. This study was conducted to estimate the heritability and determine trait correlations of storage root yield, dry matter, starch and <beta>-carotene content in a cross between ‘New Kawogo’ x ‘Beauregard’. The study was also conducted to identify simple sequence repeat (SSR) markers associated with these traits. A total of 287 progeny and the parents were evaluated for two seasons at three sites in Uganda and genotyped with 250 SSR markers. Broad sense heritability (H2) for storage root yield, dry matter, starch and <beta>-carotene content were 0.24, 0.68, 0.70 and 0.90, respectively. Storage root <beta>-carotene content was negatively correlated with dry matter (r = -0.59, P < 0.001) and starch (r = -0.93, P < 0.001) content, while storage root yield was positively correlated with dry matter (r = 0.57, P = 0.029) and starch (r = 0.41, P = 0.008) content. Through logistic regression, a total of 12, 4, 6 and 8 SSR markers were associated with storage root yield, dry matter, starch and <beta>-carotene content, respectively. The SSR markers used in this study may be useful for quantitative trait loci analysis and selection for these traits in future. 2017-04-20 2018-04-02T20:42:29Z 2018-04-02T20:42:29Z Journal Article https://hdl.handle.net/10568/91987 en Open Access Japanese Society of Breeding Yada, B.; Brown-Guedira, G.; Alajo, A.; Ssemakula, G.N.; Owusu-Mensah, E.; Carey, E.E.; Mwanga, R.O.M.; Yencho, G.C. 2017. Genetic analysis and association of simple sequence repeat markers with storage root yield, dry matter, starch and <beta>-carotene content in sweetpotato. Breeding Science. (Japan). ISSN 1344-7610. 67(2):140-150. |
| spellingShingle | sweet potatoes heritability yields microsatellites Yada, B. Brown-Guedira, Gina Alajo, A. Ssemakula, G.N. Owusu-Mensah, E. Carey, E.E. Mwanga, Robert O.M. Yencho, George Craig Genetic analysis and association of simple sequence repeat markers with storage root yield, dry matter, starch and β-carotene content in sweetpotato |
| title | Genetic analysis and association of simple sequence repeat markers with storage root yield, dry matter, starch and β-carotene content in sweetpotato |
| title_full | Genetic analysis and association of simple sequence repeat markers with storage root yield, dry matter, starch and β-carotene content in sweetpotato |
| title_fullStr | Genetic analysis and association of simple sequence repeat markers with storage root yield, dry matter, starch and β-carotene content in sweetpotato |
| title_full_unstemmed | Genetic analysis and association of simple sequence repeat markers with storage root yield, dry matter, starch and β-carotene content in sweetpotato |
| title_short | Genetic analysis and association of simple sequence repeat markers with storage root yield, dry matter, starch and β-carotene content in sweetpotato |
| title_sort | genetic analysis and association of simple sequence repeat markers with storage root yield dry matter starch and β carotene content in sweetpotato |
| topic | sweet potatoes heritability yields microsatellites |
| url | https://hdl.handle.net/10568/91987 |
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