scholarly journals The FLOWERING LOCUS T/TERMINAL FLOWER 1 Family in Lombardy Poplar

2008 ◽  
Vol 49 (3) ◽  
pp. 291-300 ◽  
Author(s):  
Tomohiro Igasaki ◽  
Yumiko Watanabe ◽  
Mitsuru Nishiguchi ◽  
Nobuhiro Kotoda
Keyword(s):  
Flowering Locus T ◽  
Terminal Flower ◽  
Terminal Flower 1 ◽  
Flowering Locus ◽  
Lombardy Poplar

Identification and Characterization of the FLOWERING LOCUS T/TERMINAL FLOWER 1 Gene Family in Petunia

2019 ◽  
Vol 38 (9) ◽  
pp. 982-995 ◽  
Author(s):  
Lan Wu ◽  
Fei Li ◽  
Qiaohong Deng ◽  
Sisi Zhang ◽  
Qin Zhou ◽  
...  
Keyword(s):  
Gene Family ◽  
Flowering Locus T ◽  
Terminal Flower ◽  
Terminal Flower 1 ◽  
Flowering Locus ◽  
Identification And Characterization

scholarly journals TERMINAL FLOWER 1-FD complex target genes and competition with FLOWERING LOCUS T

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Yang Zhu ◽  
Samantha Klasfeld ◽  
Cheol Woong Jeong ◽  
Run Jin ◽  
Koji Goto ◽  
...  
Keyword(s):  
Reproductive Success ◽  
Target Genes ◽  
Bzip Transcription Factor ◽  
Inflorescence Architecture ◽  
Flowering Locus T ◽  
Terminal Flower ◽  
Terminal Flower 1 ◽  
Flowering Locus ◽  
Complex Target

Abstract Plants monitor seasonal cues to optimize reproductive success by tuning onset of reproduction and inflorescence architecture. TERMINAL FLOWER 1 (TFL1) and FLOWERING LOCUS T (FT) and their orthologs antagonistically regulate these life history traits, yet their mechanism of action, antagonism and targets remain poorly understood. Here, we show that TFL1 is recruited to thousands of loci by the bZIP transcription factor FD. We identify the master regulator of floral fate, LEAFY (LFY) as a target under dual opposite regulation by TFL1 and FT and uncover a pivotal role of FT in promoting flower fate via LFY upregulation. We provide evidence that the antagonism between FT and TFL1 relies on competition for chromatin-bound FD at shared target loci. Direct TFL1-FD regulated target genes identify this complex as a hub for repressing both master regulators of reproductive development and endogenous signalling pathways. Our data provide mechanistic insight into how TFL1-FD sculpt inflorescence architecture, a trait important for reproductive success, plant architecture and yield.

Characterization of mango Flowering Locus T (FT) and Terminal Flower 1 (TFL1) genes

2017 ◽  
pp. 113-124 ◽  
Author(s):  
S.N. Vyavahare ◽  
B. Krishna ◽  
S.S. Joshi ◽  
R.S. Chaudhari ◽  
V.R. Subramaniam ◽  
...  
Keyword(s):  
Flowering Locus T ◽  
Terminal Flower ◽  
Terminal Flower 1 ◽  
Flowering Locus

scholarly journals Structural Changes and Adaptative Evolutionary Constraints In FLOWERING LOCUS T and TERMINAL FLOWER1-Like Genes of Flowering Plants

2021 ◽  
Author(s):  
Deivid Almeida de Jesus ◽  
Darlisson Mesquista Batista ◽  
Shayla Salzman ◽  
Lucas Miguel Carvalho ◽  
Kaue Santana ◽  
...  
Keyword(s):  
Evolutionary History ◽  
Structural Changes ◽  
Protein Structures ◽  
Flowering Phenology ◽  
Flowering Locus T ◽  
Ancestral Sequences ◽  
Terminal Flower 1 ◽  
History Of ◽  
Flowering Locus ◽  
Complex Signaling

Abstract Regulation of flowering is a crucial event in the evolutionary history of angiosperms. The production of flowers is regulated through the integration of different environmental and endogenous stimuli, many of which involve the activation of different genes in a hierarchical and complex signaling network. The FLOWERING LOCUS T/TERMINAL FLOWER 1 (FT/TFL1) gene family is known to regulate important aspects of flowering in plants. To better understand the pivotal events that changed FT and TFL1 functions during the evolution of angiosperms, we reconstructed the ancestral sequences of FT/TFL1-like genes and predicted protein structures to identify determinant sites that evolved in both proteins and allowed the adaptative diversification in the flowering phenology and developmental processes. Residues from the P-loop domain of the analyzed FT structures showed predominantly high destabilizing mutations which is consistent with constant selective pressure found for this region. In addition, we demonstrate that the occurrence of destabilizing mutations in residues located at the phosphatidylcholine binding sites of FT structure experience positive selection, and some residues of 4th exon are under negative selection, which is compensated by the occurrence of stabilizing mutations in key regions and the P-loop to maintain the overall protein stability. Our results shed light on the evolutionary history of key genes involved in the diversification of angiosperms.

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