| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 2016309 | Plant Physiology and Biochemistry | 2013 | 7 Pages |
•Different flowering locus T (DlFT) subforms from longan are characterized.•DlFT subforms act as flowering promoter or as flowering repressor.•Two forms of APETALA1 (DlAP1-1 and DlAP1-2) from longan are characterized.
Longan (Dimocarpus longan Lour.) is a subtropical evergreen fruit tree, mainly cultivated in Asia. Two putative floral integrator genes, D. longan FLOWERING LOCUS T1 and 2 (DlFT1 and DlFT2) were isolated and both translated sequences revealed a high homology to FT sequences from other plants. Moreover, two APETALA1-like (DlAP1-1 and DlAP1-2) sequences from longan were isolated and characterized. Results indicate that the sequences of these genes are highly conserved, suggesting functions in the longan flowering pathway. Ectopic expression of the longan genes in arabidopsis resulted in different flowering time phenotypes of transgenic plants. Expression experiments reveal a different action of the longan FT genes and indicate that DlFT1 is a flowering promoter, while DlFT2 acts as flowering inhibitor. Overexpression of longan AP1 genes in transgenic arabidopsis results in a range of flowering time phenotypes also including early and late flowering individuals.
