Legume Transcription Factors: Global Regulators of Plant Development and Response to the Environment

Udvardi, Michael K.; Kakar, Klementina; Wandrey, Maren; Montanari, Ombretta; Murray, J. D.; Andriankaja, Andry; Zhang, Jiyi; Benedito, Vagner A.; Hofer, Julie; Chueng, Foo; Town, Christopher D.

doi:10.1104/pp.107.098061

Cited by 265 publications

(210 citation statements)

References 107 publications

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“…; Zhu et al, 2007), while the monocot rice (Oryza sativa) contains only 63 families (Gao et al, 2006), missing the STERILE APETALA (SAP) family that is represented by only a single gene in both of the dicot species. Recent large-scale analyses of plant TFs have produced databases for TF studies across the entire plant kingdom (Richardt et al, 2007;Udvardi et al, 2007). These are excellent resources, but they are largely restricted to sequences already present in public databases and contain no comprehensive analysis of a member of the Solanaceae.…”

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confidence: 99%

“…Regulation of gene expression at the level of transcription is a major control point in many biological processes, and plant genomes devote approximately 7% of their coding sequence to transcription factors (TFs; Udvardi et al, 2007). In plants, changes in transcription rates are seen as the plant grows and develops and also as the plant is required to respond to changes in the environment.…”

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confidence: 99%

“…Transcriptional regulation can determine a number of agronomically important traits; therefore, studies of TFs form a major focus in plant biology (Richardt et al, 2007;Udvardi et al, 2007).…”

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confidence: 99%

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Tobacco Transcription Factors: Novel Insights into Transcriptional Regulation in the Solanaceae

Rushton

Bokowiec²,

Han³

et al. 2008

Plant Physiology

240

179

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Tobacco (Nicotiana tabacum) is a member of the Solanaceae, one of the agronomically most important groups of flowering plants. We have performed an in silico analysis of 1.15 million gene-space sequence reads from the tobacco nuclear genome and report the detailed analysis of more than 2,500 tobacco transcription factors (TFs). The tobacco genome contains at least one member of each of the 64 well-characterized TF families identified in sequenced vascular plant genomes, indicating that evolution of the Solanaceae was not associated with the gain or loss of TF families. However, we found notable differences between tobacco and non-Solanaceae species in TF family size and evidence for both tobacco-and Solanaceae-specific subfamily expansions. Compared with TF families from sequenced plant genomes, tobacco has a higher proportion of ERF/AP2, C2H2 zinc finger, homeodomain, GRF, TCP, zinc finger homeodomain, BES, and STERILE APETALA (SAP) genes and novel subfamilies of BES, C2H2 zinc finger, SAP, and NAC genes. The novel NAC subfamily, termed TNACS, appears restricted to the Solanaceae, as they are absent from currently sequenced plant genomes but present in tomato (Solanum lycopersicum), pepper (Capsicum annuum), and potato (Solanum tuberosum). They constitute approximately 25% of NAC genes in tobacco. Based on our phylogenetic studies, we predict that many of the more than 50 tobacco group IX ERF genes are involved in jasmonate responses. Consistent with this, over two-thirds of group IX ERF genes tested showed increased mRNA levels following jasmonate treatment. Our data are a major resource for the Solanaceae and fill a void in studies of TF families across the plant kingdom.

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confidence: 99%

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confidence: 99%

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Tobacco Transcription Factors: Novel Insights into Transcriptional Regulation in the Solanaceae

Rushton

Bokowiec²,

Han³

et al. 2008

Plant Physiology

240

179

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“…They act naturally as master regulators of many cellular processes (Century et al, 2008). In the Arabidopsis genome, around 7% of their coding sequences are devoted to encoding TFs (Iida et al, 2005) because of the complexity in transcriptional regulation in plants (Udvardi et al, 2007).…”

Section: Transcription Factor-based Genetic Engineeringmentioning

confidence: 99%

“…In some cases, genetic engineering of transcriptional networks promises to be a more practical approach than conventional breeding methods because stress tolerance is inherently multigenic in nature (Tran et al, 2010). Several studies have shown the promise of using TFs as transgenes in improving crop responses to various stresses under greenhouse and field conditions, as summarized in Tables 1 and 2. TFs are DNA-binding proteins that interact with other transcriptional regulators, including chromatin remodeling/ modifying proteins, to recruit or block access of RNA polymerase to the DNA template (Udvardi et al, 2007). They act naturally as master regulators of many cellular processes (Century et al, 2008).…”

Section: Transcription Factor-based Genetic Engineeringmentioning

confidence: 99%

The Potential of Transcription Factor-Based Genetic Engineering in Improving Crop Tolerance to Drought

Rabara¹,

Tripathi

Rushton³

2014

OMICS: A Journal of Integrative Biology

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Drought is one of the major constraints in crop production and has an effect on a global scale. In order to improve crop production, it is necessary to understand how plants respond to stress. A good understanding of regulatory mechanisms involved in plant responses during drought will enable researchers to explore and manipulate key regulatory points in order to enhance stress tolerance in crops. Transcription factors (TFs) have played an important role in crop improvement from the dawn of agriculture. TFs are therefore good candidates for genetic engineering to improve crop tolerance to drought because of their role as master regulators of clusters of genes. Many families of TFs, such as CCAAT, homeodomain, bHLH, NAC, AP2/ERF, bZIP, and WRKY have members that may have the potential to be tools for improving crop tolerance to drought. In this review, the roles of TFs as tools to improve drought tolerance in crops are discussed. The review also focuses on current strategies in the use of TFs, with emphasis on several major TF families in improving drought tolerance of major crops. Finally, many promising transgenic lines that may have improved drought responses have been poorly characterized and consequently their usefulness in the field is uncertain. New advances in high-throughput phenotyping, both greenhouse and field based, should facilitate improved phenomics of transgenic lines. Systems biology approaches should then define the underlying changes that result in higher yields under water stress conditions. These new technologies should help show whether manipulating TFs can have effects on yield under field conditions.

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Legume Seed Genomics: How to Respond to the Challenges and Potential of a Key Plant Family?

et al. 2013

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Legume Transcription Factors: Global Regulators of Plant Development and Response to the Environment

Cited by 265 publications

References 107 publications

Tobacco Transcription Factors: Novel Insights into Transcriptional Regulation in the Solanaceae

Tobacco Transcription Factors: Novel Insights into Transcriptional Regulation in the Solanaceae

The Potential of Transcription Factor-Based Genetic Engineering in Improving Crop Tolerance to Drought

Legume Seed Genomics: How to Respond to the Challenges and Potential of a Key Plant Family?

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