FT-Like NFT1 Gene May Play a Role in Flower Transition Induced by Heat Accumulation in Narcissus tazetta var. chinensis

Li, Xiaofang; Jia, Linyan; Xu, Jing; Deng, Xin-Jie; Wang, Yang; Zhang, Wei; Zhang, Xueping; Fang, Qi; Zhang, Dongmei; Sun, Yue; Xu, Lingfei

doi:10.1093/pcp/pcs181

Cited by 32 publications

(24 citation statements)

References 58 publications

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“…chinensis, known as NFT1, act as a flowering time regulator when ectopically and constitutively expressed in ft-3 mutant Arabidopsis plants. In these transgenic lines, SOC1 a target of FT showed to be up-regulated as expected based on FT functioning in Arabidopsis (Li et al, 2013).…”

Section: Gene Function Verification Using Model Speciessupporting

confidence: 67%

“…Despite that these technologies are already available for thirty years and have undergone various improvements over the last decades, it is still far from trivial to transform any desired plant species. Therefore, it is still common practise to perform gene function verifications by overexpression or complementation studies using a model species as target (cross-species analysis) (Li et al, 2013, Tsaftaris et al, 2012.…”

Section: Verification Of Gene Functionmentioning

confidence: 99%

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Transfer of knowledge about flowering and vegetative propagation from model species to bulbous plants

Leeggangers¹,

Moreno-Pachon²,

Gude³

et al. 2013

Int. J. Dev. Biol.

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The extensive characterization of plant genes and genome sequences summed to the continuous development of biotechnology tools, has played a major role in understanding biological processes in plant model species. The challenge for the near future is to generate methods and pipelines for an efficient transfer of this knowledge to economically important crops and other plant species. In the case of flower bulbs, which are economically very important for the ornamental industry, flowering time control and vegetative propagation constitute the most relevant processes for agronomical improvements. Those processes have been reasonably studied in reference species, making them excellent candidates for translational investigations in bulbous plant species. The approaches that can be taken for the transfer of biological knowledge from model to non-model species can be roughly categorized as "bottom-up" or "top-down". The former approach usually goes from individual genes to systems, also known as a "gene-by-gene" approach. It assumes conservation of molecular pathways and therefore makes use of sequence homology searches to identify candidate genes. "Top-down" methodologies go from systems to genes, and are e.g. based on large scale transcriptome profiling via heterologous microarrays or RNA sequencing, followed by the identification of associations between phenotypes, genes, and gene expression patterns and levels. In this review, examples of the various knowledge-transfer approaches are provided and pros and cons are discussed. Due to the latest developments in transgenic research and next generation sequencing and the emerging of systems biology as a matured research field, transfer of knowledge concerning flowering time and vegetative propagation capacity in bulbous species are now within sight.

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Section: Gene Function Verification Using Model Speciessupporting

confidence: 67%

Section: Verification Of Gene Functionmentioning

confidence: 99%

Transfer of knowledge about flowering and vegetative propagation from model species to bulbous plants

Leeggangers¹,

Moreno-Pachon²,

Gude³

et al. 2013

Int. J. Dev. Biol.

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“…Numerous studies have concluded, FT orthologs possessing floral inductive function in woody perennials (Hisada et al, 1997; Endo et al, 2005; Böhlenius et al, 2006; Hsu et al, 2006; Carmona et al, 2007; Kotoda et al, 2010; Song et al, 2013); grasses (Yan et al, 2006; Tamaki et al, 2007; Kikuchi et al, 2009; Meng et al, 2011; Wu et al, 2013; Coelho et al, 2014); legumes (Kong et al, 2010; Ono et al, 2010; Hecht et al, 2011; Laurie et al, 2011); ornamental (Hayama et al, 2007; Hou and Yang, 2009; Imamura et al, 2011), CsFTL3 from chrysanthemum ( Chrysanthemum seticuspe ; Oda et al, 2012; Xiang et al, 2012; Li et al, 2013); and others such as BvFT2 from sugar beet ( Beta vulgaris ; Pin et al, 2010), NtFT4 from tobacco ( Nicotiana tabacum ; Harig et al, 2012), StSP3D form potato ( Solanum tuberosum ; Navarro et al, 2011), AcFT2 from onion ( Allium cepa ; Lee et al, 2013), PaFT from avocado ( Persa americana ; Ziv et al, 2014), LsFT from lettuce ( Lactuca sativa ; Fukuda et al, 2011; Above information was listed in Supplementary Table S1). Previously study suggests a conserved ancestral function of FT -like proteins in transmitting inductive signals in plants.…”

Section: Introductionmentioning

confidence: 99%

Promoting flowering, lateral shoot outgrowth, leaf development, and flower abscission in tobacco plants overexpressing cotton FLOWERING LOCUS T (FT)-like gene GhFT1

Zhang

et al. 2015

Front. Plant Sci.

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FLOWERING LOCUS T (FT) encodes a mobile signal protein, recognized as major component of florigen, which has a central position in regulating flowering, and also plays important roles in various physiological aspects. A mode is recently emerging for the balance of indeterminate and determinate growth, which is controlled by the ratio of FT-like and TERMINAL FLOWER 1 (TFL1)-like gene activities, and has a strong influence on the floral transition and plant architecture. Orthologs of GhFT1 was previously isolated and characterized from Gossypium hirsutum. We demonstrated that ectopic overexpression of GhFT1 in tobacco, other than promoting flowering, promoted lateral shoot outgrowth at the base, induced more axillary bud at the axillae of rosette leaves, altered leaf morphology, increased chlorophyll content, had higher rate of photosynthesis and caused flowers abscission. Analysis of gene expression suggested that flower identity genes were significantly upregulated in transgenic plants. Further analysis of tobacco FT paralogs indicated that NtFT4, acting as flower inducer, was upregulated, whereas NtFT2 and NtFT3 as flower inhibitors were upregulated in transgenic plants under long-day conditions, but downregulated under short-day conditions. Our data suggests that sufficient level of transgenic cotton FT might disturb the balance of the endogenous tobacco FT paralogs of inducers and repressors and resulted in altered phenotype in transgenic tobacco, emphasizing the expanding roles of FT in regulating shoot architecture by advancing determine growth. Manipulating the ratio for indeterminate and determinate growth factors throughout FT-like and TFL1-like gene activity holds promise to improve plant architecture and enhance crop yield.

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“…Limited information is available on the flower transition of bulbous species, which require high temperature for flower differentiation in species such as saffron. The results obtained by Li et al 137 working on Narcissus tazetta, a bulbous species that requires high temperature for flower differentiation, showed that Narcissus FLOWERING LOCUS T1 (NFT1) transcripts were abundant during flower initiation in mature bulbs and were up-regulated by high temperature, suggesting that NFT1 possibly takes part in flower transition control in response to this factor. Given the similarities in the floral induction process of saffron and narcissus, the same upregulation of FT by high temperature could be expected to happen in saffron, although this needs to be confirmed.…”

Section: Journal Of Agricultural and Food Chemistrymentioning

confidence: 99%

Saffron: Its Phytochemistry, Developmental Processes, and Biotechnological Prospects

Ahrazem

Rubio-Moraga

Nebauer

et al. 2015

J. Agric. Food Chem.

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The present state of knowledge concerning developmental processes and the secondary metabolism of saffron, Crocus sativus L. (Iridaceae), along with the genes involved in these processes so far known, is reviewed. Flowers and corms constitute the most valuable parts of saffron. Corm and flower development are two key aspects to be studied in saffron to increase the yield and quality of the spice, to raise its reproductive rate, and to implement new production systems. Important knowledge about the physiology of flowering and vegetative growth has been acquired in recent years, but there is still only limited information on molecular mechanisms controlling these processes. Although some genes involved in flower formation and meristem transition in other species have been isolated in saffron, the role of these genes in this species awaits further progress. Also, genes related with the synthesis pathway of abscisic acid and strigolactones, growth regulators related with bud endodormancy and apical dominance (paradormancy), have been isolated. However, the in-depth understanding of these processes as well as of corm development is far from being achieved. By contrast, saffron phytochemicals have been widely studied. The different flower tissues and the corm have been proved to be an important source of phytochemicals with pharmacological properties. The biotechnological prospects for saffron are here reviewed on the basis of the discovery of the enzymes involved in key aspects of saffron secondary metabolism, and we also analyze the possibility of transferring current knowledge about flowering and vegetative propagation in model species to the Crocus genus.

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FT-Like NFT1 Gene May Play a Role in Flower Transition Induced by Heat Accumulation in Narcissus tazetta var. chinensis

Cited by 32 publications

References 58 publications

Transfer of knowledge about flowering and vegetative propagation from model species to bulbous plants

Transfer of knowledge about flowering and vegetative propagation from model species to bulbous plants

Promoting flowering, lateral shoot outgrowth, leaf development, and flower abscission in tobacco plants overexpressing cotton FLOWERING LOCUS T (FT)-like gene GhFT1

Saffron: Its Phytochemistry, Developmental Processes, and Biotechnological Prospects

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