Overexpression of Arabidopsis FLOWERING LOCUS T (FT) gene improves floral development in cassava (Manihot esculenta, Crantz)
Cassava is a tropical storage-root crop that serves as a worldwide source of staple food for over 800 million people. Flowering is one of the most important breeding challenges in cassava because in most lines flowering is late and non-synchronized, and flower production is sparse. The FLOWERING LOC...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Public Library of Science
2017
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/83280 |
| _version_ | 1855521140347240448 |
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| author | Adeyemo, O. Sarah Chavarriaga Aguirre, Paul Tohme, Joseph M. Fregene, Martin A. Davis, Seth J. Setter, Tim L. |
| author_browse | Adeyemo, O. Sarah Chavarriaga Aguirre, Paul Davis, Seth J. Fregene, Martin A. Setter, Tim L. Tohme, Joseph M. |
| author_facet | Adeyemo, O. Sarah Chavarriaga Aguirre, Paul Tohme, Joseph M. Fregene, Martin A. Davis, Seth J. Setter, Tim L. |
| author_sort | Adeyemo, O. Sarah |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Cassava is a tropical storage-root crop that serves as a worldwide source of staple food for over 800 million people. Flowering is one of the most important breeding challenges in cassava because in most lines flowering is late and non-synchronized, and flower production is sparse. The FLOWERING LOCUS T (FT) gene is pivotal for floral induction in all examined angiosperms. The objective of the current work was to determine the potential roles of the FT signaling system in cassava. The Arabidopsis thaliana FT gene (atFT) was transformed into the cassava cultivar 60444 through Agrobacterium-mediated transformation and was found to be overexpressed constitutively. FT overexpression hastened flower initiation and associated fork-type branching, indicating that cassava has the necessary signaling factors to interact with and respond to the atFT gene product. In addition, overexpression stimulated lateral branching, increased the prolificacy of flower production and extended the longevity of flower development. While FT homologs in some plant species stimulate development of vegetative storage organs, atFT inhibited storage-root development and decreased root harvest index in cassava. These findings collectively contribute to our understanding of flower development in cassava and have the potential for applications in breeding. |
| format | Journal Article |
| id | CGSpace83280 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| publisher | Public Library of Science |
| publisherStr | Public Library of Science |
| record_format | dspace |
| spelling | CGSpace832802025-03-13T09:44:06Z Overexpression of Arabidopsis FLOWERING LOCUS T (FT) gene improves floral development in cassava (Manihot esculenta, Crantz) Adeyemo, O. Sarah Chavarriaga Aguirre, Paul Tohme, Joseph M. Fregene, Martin A. Davis, Seth J. Setter, Tim L. manihot esculenta grantz arabidopsis flowering plant breeding transgenics yields adn floración fitomejoramiento transgénicos dna Cassava is a tropical storage-root crop that serves as a worldwide source of staple food for over 800 million people. Flowering is one of the most important breeding challenges in cassava because in most lines flowering is late and non-synchronized, and flower production is sparse. The FLOWERING LOCUS T (FT) gene is pivotal for floral induction in all examined angiosperms. The objective of the current work was to determine the potential roles of the FT signaling system in cassava. The Arabidopsis thaliana FT gene (atFT) was transformed into the cassava cultivar 60444 through Agrobacterium-mediated transformation and was found to be overexpressed constitutively. FT overexpression hastened flower initiation and associated fork-type branching, indicating that cassava has the necessary signaling factors to interact with and respond to the atFT gene product. In addition, overexpression stimulated lateral branching, increased the prolificacy of flower production and extended the longevity of flower development. While FT homologs in some plant species stimulate development of vegetative storage organs, atFT inhibited storage-root development and decreased root harvest index in cassava. These findings collectively contribute to our understanding of flower development in cassava and have the potential for applications in breeding. 2017-07 2017-08-29T13:33:01Z 2017-08-29T13:33:01Z Journal Article https://hdl.handle.net/10568/83280 en Open Access Public Library of Science Adeyemo, O. Sarah; Chavarriaga, Paul; Tohme, Joe; Fregene, Martin; Davis, Seth J.; Setter, Tim L.. 2017. Overexpression of Arabidopsis FLOWERING LOCUS T (FT) gene improves floral development in cassava (Manihot esculenta, Crantz) . PloS ONE 12 (7): e0181460. |
| spellingShingle | manihot esculenta grantz arabidopsis flowering plant breeding transgenics yields adn floración fitomejoramiento transgénicos dna Adeyemo, O. Sarah Chavarriaga Aguirre, Paul Tohme, Joseph M. Fregene, Martin A. Davis, Seth J. Setter, Tim L. Overexpression of Arabidopsis FLOWERING LOCUS T (FT) gene improves floral development in cassava (Manihot esculenta, Crantz) |
| title | Overexpression of Arabidopsis FLOWERING LOCUS T (FT) gene improves floral development in cassava (Manihot esculenta, Crantz) |
| title_full | Overexpression of Arabidopsis FLOWERING LOCUS T (FT) gene improves floral development in cassava (Manihot esculenta, Crantz) |
| title_fullStr | Overexpression of Arabidopsis FLOWERING LOCUS T (FT) gene improves floral development in cassava (Manihot esculenta, Crantz) |
| title_full_unstemmed | Overexpression of Arabidopsis FLOWERING LOCUS T (FT) gene improves floral development in cassava (Manihot esculenta, Crantz) |
| title_short | Overexpression of Arabidopsis FLOWERING LOCUS T (FT) gene improves floral development in cassava (Manihot esculenta, Crantz) |
| title_sort | overexpression of arabidopsis flowering locus t ft gene improves floral development in cassava manihot esculenta crantz |
| topic | manihot esculenta grantz arabidopsis flowering plant breeding transgenics yields adn floración fitomejoramiento transgénicos dna |
| url | https://hdl.handle.net/10568/83280 |
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