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Norre, Frédéric; Peyrot, Corinne; Garcia, Christian; Rancé, Iann; Drevet, Joël R.; Theisen, Manfred; Gruber, Véronique

doi:10.1023/a:1019953914467

Cited by 29 publications

(18 citation statements)

References 47 publications

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“…Previous reports demonstrated that the 277 bp immediately upstream of the TSS are sufficient for temporal and tissue-specific regulation (Halford et al, 1989; Norre et al, 2002). There is also strong evidence indicating that mutations in this region are responsible for the silencing of Glu-A1-2 (Halford et al, 1989).…”

Section: Discussionmentioning

confidence: 99%

“…We also determined the in vitro binding of SPA to the G-box motif, which was previously shown to bind bZIP proteins (Norre et al, 2002). As shown in Figure 7A, arabinose treatment induced expression of a protein of 50–75 kDa that was not present in uninduced cell extracts.…”

Section: The Glm-gata Box Is Involved In the Regulation Of Glu-b1-1 Ementioning

confidence: 99%

“…Wheat promoters of α-gliadin classes (Van Herpen et al, 2008), LMW-GS (Hammond-Kosack et al, 1993; Conlan et al, 1999), and HMW-GS (Norre et al, 2002) have been functionally analyzed. Van Herpen et al (2008) reported differences in regulatory-elements between promoter sequences of α-gliadin genes from A and B genomes.…”

Section: Introductionmentioning

confidence: 99%

“…The LMW-GS promoter studied is characterized by a tandem repeat of two endosperm motifs known as the long endosperm box that is important for controlling endosperm-specific expression (Hammond-Kosack et al, 1993). Thomas and Flavell (1990) and Norre et al (2002) analyzed extensively the promoters of Glu-D1 by transient expression assay in tobacco and maize. A 38-bp enhancer element has been identified (Thomas and Flavell, 1990).…”

Section: Introductionmentioning

confidence: 99%

“…A 38-bp enhancer element has been identified (Thomas and Flavell, 1990). In addition, the promoter of Glu-D1-1 contains an atypical endosperm box where the P-box is associated with a G-like box of the ACGT family able to bind bZIP proteins (Norre et al, 2002). Moreover, these authors suggested that the enhancer element may act with the G-like box to increase reporter gene expression.…”

Section: Introductionmentioning

confidence: 99%

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Conserved cis-regulatory modules in promoters of genes encoding wheat high-molecular-weight glutenin subunits

et al. 2014

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The concentration and composition of the gliadin and glutenin seed storage proteins (SSPs) in wheat flour are the most important determinants of its end-use value. In cereals, the synthesis of SSPs is predominantly regulated at the transcriptional level by a complex network involving at least five cis-elements in gene promoters. The high-molecular-weight glutenin subunits (HMW-GS) are encoded by two tightly linked genes located on the long arms of group 1 chromosomes. Here, we sequenced and annotated the HMW-GS gene promoters of 22 electrophoretic wheat alleles to identify putative cis-regulatory motifs. We focused on 24 motifs known to be involved in SSP gene regulation. Most of them were identified in at least one HMW-GS gene promoter sequence. A common regulatory framework was observed in all the HMW-GS gene promoters, as they shared conserved cis-regulatory modules (CCRMs) including all the five motifs known to regulate the transcription of SSP genes. This common regulatory framework comprises a composite box made of the GATA motifs and GCN4-like Motifs (GLMs) and was shown to be functional as the GLMs are able to bind a bZIP transcriptional factor SPA (Storage Protein Activator). In addition to this regulatory framework, each HMW-GS gene promoter had additional motifs organized differently. The promoters of most highly expressed x-type HMW-GS genes contain an additional box predicted to bind R2R3-MYB transcriptional factors. However, the differences in annotation between promoter alleles could not be related to their level of expression. In summary, we identified a common modular organization of HMW-GS gene promoters but the lack of correlation between the cis-motifs of each HMW-GS gene promoter and their level of expression suggests that other cis-elements or other mechanisms regulate HMW-GS gene expression.

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Section: Discussionmentioning

confidence: 99%

Section: The Glm-gata Box Is Involved In the Regulation Of Glu-b1-1 Ementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Conserved cis-regulatory modules in promoters of genes encoding wheat high-molecular-weight glutenin subunits

et al. 2014

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Effects of Nitrogen and Sulfur Nutrition on Grain Composition and Properties of Wheat and Related Cereals

Shewry¹

2011

The Molecular and Physiological Basis of Nutrient Use Efficiency in Crops

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Molecular and environmental factors determining grain quality in rice

Chen

Wang

Ouwerkerk

2012

Food and Energy Security

136

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Rice among other cereals is key to food security for at least half the world population. Since the 1960s, productivity of rice has largely been improved during the Green Revolution, which included development of new cultivars, irrigation infrastructure, new management techniques, and synthetic fertilizers and pesticides. Nowadays, scientists and breeders are more and more focused on improving the quality of rice for different purposes and markets. For instance, people in the Far East prefer sticky and soft rice, while in India, a non-sticky type is preferred. Consumers from developed countries ask mainly for grain with good cooking quality and eating characteristics, but in many developing regions, nutritional value is crucial as rice is the most consumed staple food. Grain quality is a general concept which covers many characteristics ranging from physical to biochemical and physiological properties. Starch and protein are the two main components of rice endosperm and therefore are key to quality. The knowledge of how starch and protein are synthesized, sorted, and stored in starch granules and protein bodies (PB) is important for rice breeding. Besides that, grain quality has been shown to be affected significantly by growing and environmental conditions, such as water availability, temperature, fertilizer application, drought, and salinity stresses. However, the signal transduction pathways controlling grain quality still remain largely unclear. In the following sections, we first briefly review the four main aspects of grain quality, followed by a discussion of the molecular and genetic basis of starch and seedstorage protein biosynthesis and the effects of environmental factors. Obviously, rice grain is also an important source of mineral micronutrients, as well as important vitamins. Storage of these also plays crucial roles in grain quality and nutritional value, but we will only discuss these aspects briefly in this review. Grain Quality Traits in Rice Major traits of grain qualityThe traits and parameters used to evaluate grain quality in rice vary across countries. However, four main quality traits are widely used to assess quality, namely milling properties, appearance, nutritional value, and cooking quality. After harvesting, rice seeds are milled to remove the outer husk and bran layers in order to produce different types of edible rice based on the requirements of the consumers. Thus, milling quality of the grain determines the final yield and the broken kernel rate of the milled rice, which is of concern for both breeders and farmers. Appearance is one of the crucial properties appealing consumers after milling. Cooking quality determines the easiness of cooking, as well as the firmness and stickiness of the cooked rice which is associated with eating properties. As one of the most important staple food in the world, nutritional value is also valued by consumers.Some criteria for the main quality traits are widely shared among the different rice-consuming regions. The

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Untitled

Cited by 29 publications

References 47 publications

Conserved cis-regulatory modules in promoters of genes encoding wheat high-molecular-weight glutenin subunits

Conserved cis-regulatory modules in promoters of genes encoding wheat high-molecular-weight glutenin subunits

Effects of Nitrogen and Sulfur Nutrition on Grain Composition and Properties of Wheat and Related Cereals

Molecular and environmental factors determining grain quality in rice

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