2017
DOI: 10.1371/journal.pone.0181460
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Overexpression of Arabidopsis FLOWERING LOCUS T (FT) gene improves floral development in cassava (Manihot esculenta, Crantz)

Abstract: 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 g… Show more

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Cited by 48 publications
(43 citation statements)
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“…MeFT1 upregulation in the transgenic plants described here was also associated with increased transcript abundance of downstream floral meristem identity genes MeAP1, MeSOC1 and MeLFY (Fig 6). Correlating flowering in cassava with increased expression of native MeFT1 and floral meristem identity genes supports the hypothesis that the apical shoot of cassava has floral meristem identity genes that associate with FT genes to trigger flowering [20]. These mRNA profiles match findings in kiwifruit and jatropha expressing AcFT1, AcFT2 and JcFT transgenes that resulted in upregulation of floral identify genes LFY, SOC1 and AP1 [18,19].…”
Section: Discussionsupporting
confidence: 73%
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“…MeFT1 upregulation in the transgenic plants described here was also associated with increased transcript abundance of downstream floral meristem identity genes MeAP1, MeSOC1 and MeLFY (Fig 6). Correlating flowering in cassava with increased expression of native MeFT1 and floral meristem identity genes supports the hypothesis that the apical shoot of cassava has floral meristem identity genes that associate with FT genes to trigger flowering [20]. These mRNA profiles match findings in kiwifruit and jatropha expressing AcFT1, AcFT2 and JcFT transgenes that resulted in upregulation of floral identify genes LFY, SOC1 and AP1 [18,19].…”
Section: Discussionsupporting
confidence: 73%
“…Here we report production of inflorescences from plants lines transgenic for expression of MeFT1. These findings correlate with heterologous overexpression of AtFT in cassava [20,25] and represents first evidence for flower induction by manipulation of a native FT-like gene in cassava. A consequence of such rapid transition to the flower phase is commitment of meristems to produce inflorescences and termination of vegetative growth.…”
Section: Discussionsupporting
confidence: 72%
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