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Showing 1 to 18 of 18 for “"R2R3-MYB"”.
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Análisis funcional de genes reguladores R2R3-MYB de "Arabidopsis Thaliana"
… de la familia de reguladores de la transcripción R2R3-MYB utilizando como sistema modelo A.thaliana por su utilidad para el analisis genetico y molecular. Con este objetivo, hemos iniciado una estrategia basada en tecnicas de genetica reversa para identificar mutantes en genes de la familia …
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Analyse und Visualisierung eines R2R3-MYB / bHLH Transkriptionsfaktorkomplexes aus Arabidopsis thaliana
… transcription factors were analysed in detail, MYB75 as well as BHLH2/BHLH42 and TTG1. These are regulators of the dihydroflavonol-reductase (DFR), the key enzyme of the anthocyanin biosynthesis. To understand the regulatory mechanism, binding of transcription factors among each other and to the …
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Evolution and Genetics of Floral Color Polymorphisms in Clarkia gracilis ssp. sonomensis and Erythronium umbilicatum
… that the cup pigmentation is controlled by an R2R3-MYB transcription factor using transcriptome analysis, gene expression assays and cosegregation examination. I also found that petal pigmentation requires at least four R2R3-MYB genes, each gene exhibiting a spatiotemporal expression pattern …
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Untersuchungen zu Regulatoren der Flavonoidbiosynthese in Arabidopsis thaliana : eine Studie zu neuen Funktionen bekannter Proteinklassen
… areas of the seed. The PFG genes encode the R2R3-MYB transcription factors MYB11, MYB12 and MYB111, which are flavonol specific regulators. They are known to activate some genes, which are encoding enzymes of the flavonoid metabolism, like for example CHS and FLS. There were hints for further …
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Pollinator behaviour and the evolutionary genetics of petal surface texture in the Solanaceae
… patterns of regulatory Subgroup 9A (Mixta-Like) R2R3 MYB genes. Bumblebee behavioural experiments show that bees do not display a preference in favour of either conical- or flat-celled flowers while buzz pollinating. These results show that conical cells are a trait under more than a single …
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Petal cell shape and flower-pollinator interaction in Nicotiana
… and N. forgetiana (Section Alatae). Subgroup 9 R2R3 MYB transcription factors are potentially responsible for the molecular control of petal cell shape. Differential expression of subgroup 9 R2R3 MYBs in petals of the sister species, rather than sequence differences in these genes, might be …
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A Role for Late Meristem Identity2 in the Reproductive Development of Arabidopsis
… is not well understood. Here we show that the R2R3 MYB transcription factor and direct LFY target LATE MERISTEM IDENTITY2 ( LMI2 ) plays a role in the meristem identity transition. Like LFY, LMI2 directly activates AP1 ; moreover LMI2 and LFY physically interact. LFY, LMI2 and AP1 are connected …
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Functional analysis of MYB112 transcription factor in the model plant Arabidopsis thaliana
… focused on the functional characterisation of MYB112 - a member of the R2R3-MYB TF family from the model plant Arabidopsis thaliana. This gene was selected due to its increased expression during senescence based on previous qRT-PCR expression profiling experiments of 1880 TFs in Arabidopsis …
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Organ-specific regulation and molecular evolution of the maize pericarp color1 gene
<p>The maize pericarp color1 (p1) gene encodes an R2R3 Myb-like transcription factor that regulates the flavonoid biosynthetic pathway in floral organs, most notably kernel pericarp and cob. Alleles of the p1 gene condition distinct tissue-specific pigmentation patterns. To elucidate the molecular …
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Flavonoid diversification in Hibiscus and its impact on petal pattern evolution
… is regulated by MBW complexes comprising MYB (myeloblastosis) and bHLH (basic helix-loop-helix) transcription factors and a WD40 co-factor. I identified a gene regulatory network centred on the R2R3 MYB HtBERRY1 to regulate anthocyanin biosynthesis at the petal base of H. trionum. Within …
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The Evolution of Male Form and Function in Nightshade Flowers
… gene approach is taken, focusing on the R2R3 Myb subgroup 9 family of transcription factors. Function of the tomato members of this family is investigated through ectopic expression in tobacco and expression analysis during stages of floral development using semi qRTPCR. This study has …
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Grapesystress: Use of systems biology and new breeding technology approaches to study water stress-resistant in grapevine plants.
… and the AQUILO transcription factor (TF), an R2R3 MYB TF involved in regulating raffinose synthesis-related genes. In parallel, V. plants expressing the ABACUS biosensor for Abscisic acid (ABA) have been generated to spatially and temporally map ABA levels in grapevine seedlings and fruits in …
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Regulation of anthocyanin accumulation in apple by the transcription factor MdMYB10
… are compared with a white-fleshed cultivar. A MYB transcription factor (TF), MdMYB10, was isolated and is shown to be similar in sequence to known anthocyanin regulators in other species. Further, this TF is shown to induce anthocyanin accumulation in both heterologous and homologous systems, …
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Population structure and the molecular genetics of petal spot pigmentation in Gorteria diffusa
… pathway, a small family of subgroup 6 R2R3 MYB transcription factors (GdMYB8 proteins) were identified as potential petal spot anthocyanin regulators. The genes encoding these proteins were found to be upregulated within petal spots and induced ectopic anthocyanin production when stably …
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Characterization of a plant-specific membrane-tethered myb transcription factor in Arabidopsis thaliana
… et al. 2006, a protein was identified as being a MYB transcription factor that was associated with the endoplasmic reticulum (ER) and was subsequently postulated to be a putative MTTF. This previously uncharacterized membrane-anchored MYB (maMYB) has two transmembrane domains and an R2R3-MYB …
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Role of subfunctionalized MYB paralogs in the evolution of pigmentation patterning in Clarkia
… pigments, always involves subfunctionalized MYB paralogs that each control the initiation of pigmentation in a specific pattern element. These early studies have mostly focused on the mechanism for patterning, though, and few have looked at the evolution and diversification of this complex …
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Identifying and characterizing genes and transcription factors involved in coloration of apple fruit
… plays a redundant role to that of LAR. A novel MYB transcription factor (TF) gene, designated as MdMYB11, was isolated and genetically mapped onto LG15 of the apple genetic map. Alignment of deduced amino acid sequences of MdMYB11 to those of other R2R3 MYB TFs revealed that this new apple …
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Auxin coordinates cell division and cell fate specification during lateral root initiation
… differentiatie transcriptiefactor, FOUR LIPS/MYB124 (Lai et al., 2005), naast de eigenschap van auxine-induceerbaar te zijn, eveneens tot expressie komt in alle stadia van zijwortelvorming. De mutant vertoonde zijworteldefecten die deden denken aan defecten in polair auxinetransport. We konden …