New insights into the regulation of inflorescence architecture

Teo, Zhi Wei Norman; Song, Shiyong; Wang, Yong-Qiang; Liu, Jie; Yu, Hao

doi:10.1016/j.tplants.2013.11.001

Cited by 117 publications

(98 citation statements)

References 80 publications

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“…TFL1 and FT have highly conserved amino acid sequences but opposing functions. Previous studies in Arabidopsis have suggested that an antagonistic interaction between the TFL1 and floral meristem identity genes, such as LEAFY (LFY) and APETALA1 (AP1), regulates the inflorescence branching pattern [9]. There are two TFL1-like proteins in the Jatropha genome [10,20].…”

Section: Discussionmentioning

confidence: 99%

“…Physiological and genetic analysis of flowering has shown that multiple environmental and endogenous inputs influence the timing of the transition from vegetative to reproductive growth [7,8]. Jatropha mainly grows in tropical and subtropical regions between 30°N and 35°S [6,9]. It can produce limited amounts of seeds at high altitudes (>500 meters above sea level), where the majority of marginal land is located in the world.…”

Section: Introductionmentioning

confidence: 99%

“…It can produce limited amounts of seeds at high altitudes (>500 meters above sea level), where the majority of marginal land is located in the world. However, it is unable to flower and produce seeds in areas with low light intensity and poor light quality [9]. Lastly, unsynchronized flowering and fruit setting renders harvesting of Jatropha seeds highly labor-intensive; in fact, high labor cost is the primary fixed cost in Jatropha fruit production [3,4].…”

Section: Introductionmentioning

confidence: 99%

“…Lastly, unsynchronized flowering and fruit setting renders harvesting of Jatropha seeds highly labor-intensive; in fact, high labor cost is the primary fixed cost in Jatropha fruit production [3,4]. Therefore, it is essential to systematically study the Jatropha flowering biology so as to devise strategies to synchronize flowering and increase seed yield [9]. With a better understanding of molecular and genetic mechanisms of flowering, it will be possible to generate next-generation Jatropha plants by traditional breeding and/or genetic engineering.…”

Section: Introductionmentioning

confidence: 99%

“…At a certain point in their life cycle, annual plants undergo a major developmental transition in which they switch from vegetative to reproductive growth [9]. Although the draft genome sequence of Jatropha has been reported, little genetic and mechanistic research on regulation of flowering time or control of male/female flower ratio has been done [10].…”

Section: Introductionmentioning

confidence: 99%

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The JatrophaFT ortholog is a systemic signal regulating growth and flowering time

Jian

Geng

Zhang

et al. 2014

Biotechnol Biofuels

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Background: Jatropha curcas is being promoted as a new bioenergy crop in tropical and subtropical regions due to its high amount of seed oil and its potential capacity to grow on marginal land for biofuel production. However, the productivity of the plant is constrained by the unfavorable flowering time and inflorescence architecture, which render harvesting of seeds time-consuming and labor-intensive. These flowering-related traits have limited further widespread cultivation of Jatropha.Results: We identified a Jatropha curcas homolog of Flowering locus T (JcFT) and demonstrated its function by genetic complementation of the Arabidopsis ft mutant. The JcFT expression level was found to be remarkably correlated with leaf age. Overexpression of JcFT in Jatropha reduced flowering time and altered plant architecture by producing more branches. Grafting experiments suggested that the earlyflowering and alteration of plant architecture traits were graft-transmissible. We also showed that the FT-overexpressing transgenic Jatropha can be used as a root stock for grafting of scions derived from other Jatropha. Conclusion:We generated early flowering transgenic Jatropha plants that accumulate higher levels of the florigen FT. Not only early flowering but also plant growth was affected in JcFT overexpression lines. More seeds can be produced in a shorter time frame by shortening the flowering time in Jatropha, suggesting the possibility to increase seed yield by manipulating the flowering time.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The JatrophaFT ortholog is a systemic signal regulating growth and flowering time

Jian

Geng

Zhang

et al. 2014

Biotechnol Biofuels

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Regulation by FLOWERING LOCUS T and TERMINAL FLOWER 1 in Flowering Time and Plant Architecture

Xuan

Jiang

et al. 2021

Small Structures

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The conversion from vegetative to inflorescence shoot apical meristem is one of the key developmental switches in flowering plants. This transition is modulated by various environmental and endogenous stimuli and controlled by sophisticated regulatory networks. Regulation of flowering time and inflorescence architecture has a great impact on plant reproductive success and significantly influences plant biomass and fitness. FLOWERING LOCUS T (FT), a mobile protein identified as a major component of florigen, promotes the transition to flowering, whereas its homologous protein TERMINAL FLOWER 1 (TFL1) functions oppositely. Studies in various species reveal that FT and TFL1 play universal and multifaceted roles in a wide range of developmental processes in plants. Hence, modulations of FT/TFL1 and their regulatory pathways have a considerable impact on plant development and crop domestication. Herein, an overview of the molecular basis underlying the regulation of FT/TFL1 expression and modulation of their protein trafficking and the relevant mechanisms in flowering time control and meristem development is provided. Whenever applicable, their functional conservation and divergence in various plant species are also discussed.

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Master Regulatory Transcription Factors in Plant Development: A Blooming Perspective

Kaufmann

Airoldi

2018

Methods in Molecular Biology

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Transcription factors that trigger major developmental decisions in plants and animals are termed "master regulators". Such master regulators are classically seen as acting on the top of a regulatory hierarchy that determines a complete developmental program, and they usually encode transcription factors. Here, we introduce master regulators of flowering time and flower development as examples to show how analysis of molecular interactions and gene-regulatory networks in plants has changed our view on the molecular mechanisms by which these factors control developmental processes. A picture has emerged that emphasizes a complex combinatorial interplay in determining cell-type transcriptional programs, and a high level of feedback control. The expression of master regulators themselves is usually regulated by multiple factors integrating environmental and endogenous spatiotemporal cues. Master regulatory transcription factors regulate gene expression by different mechanisms, including modifications in chromatin status in the bound regions. A poorly understood phenomenon is how developmental master regulators exert functions in different cell- and organ types. This is especially relevant for those factors that have important functions in several developmental processes.

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New insights into the regulation of inflorescence architecture

Cited by 117 publications

References 80 publications

The JatrophaFT ortholog is a systemic signal regulating growth and flowering time

The JatrophaFT ortholog is a systemic signal regulating growth and flowering time

Regulation by FLOWERING LOCUS T and TERMINAL FLOWER 1 in Flowering Time and Plant Architecture

Master Regulatory Transcription Factors in Plant Development: A Blooming Perspective

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