scholarly journals Molecular cloning and functional analysis of the FLOWERING LOCUS T (FT ) homolog GhFT1 from Gossypium hirsutum

2015 ◽  
Vol 57 (6) ◽  
pp. 522-533 ◽  
Author(s):  
Danli Guo ◽  
Chao Li ◽  
Rui Dong ◽  
Xiaobo Li ◽  
Xiangwen Xiao ◽  
...  
2012 ◽  
Vol 13 (9) ◽  
pp. 11385-11398 ◽  
Author(s):  
Weiting Huang ◽  
Zhongming Fang ◽  
Songjun Zeng ◽  
Jianxia Zhang ◽  
Kunlin Wu ◽  
...  

2019 ◽  
Vol 28 (4) ◽  
pp. 374-381
Author(s):  
Kanokwan Panjama ◽  
Eriko Suzuki ◽  
Masahiro Otani ◽  
Masaru Nakano ◽  
Norikuni Ohtake ◽  
...  

2019 ◽  
Vol 20 (19) ◽  
pp. 4769 ◽  
Author(s):  
Na Sang ◽  
Darun Cai ◽  
Chao Li ◽  
Yuqiang Sun ◽  
Xianzhong Huang

Flowering transition is a crucial development process in cotton (Gossypium hirsutum L.), and the flowering time is closely correlated with the timing of FLOWERING LOCUS T (FT) expression. However, the mechanism underlying the coordination of various cis-regulatory elements in the FT promoter of cotton has not been determined. In this study, a 5.9-kb promoter of FT was identified from cotton. A bioinformatics analysis showed that multiple insertion–deletion sites existed in the 5.9-kb promoter. Different expression levels of a reporter gene, and the induction by sequential deletions in GhFT promoter, demonstrated that 1.8-kb of the GhFT promoter was stronger than 4.2-, 4.8-, and 5.9-kb promoter fragments. The binding sites of the CONSTANS (CO) and NUCLEAR FACTOR Y transcription factors were located within the 1.0-kb sequence upstream of the FT transcription start site. A large number of repeat segments were identified in proximal promoter regions (−1.1 to −1.4 kb). A complementation analysis of deletion constructs between 1.0 and 1.8 kb of G. hirsutum, Gossypium arboretum, and Gossypium raimondii FT promoters revealed that the 1.0-kb fragment significantly rescued the late-flowering phenotype of the Arabidopsis FT loss-of-function mutant ft-10, whereas the 1.8-kb promoter only slightly rescued the late-flowering phenotype. Furthermore, the conserved CORE motif in the cotton FT promoter is an atypical TGTG(N2-3)ATG, but the number of arbitrary bases between TGTG and ATG is uncertain. Thus, the proximal FT promoter region might play an important role affecting the activity levels of FT promoters in cotton flowering.


2014 ◽  
Vol 13 (3) ◽  
pp. 5982-5994 ◽  
Author(s):  
D.M. Li ◽  
F.B. Lǚ ◽  
G.F. Zhu ◽  
Y.B. Sun ◽  
H.L. Liu ◽  
...  

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