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The TaSnRK1-TabHLH489 module integrates brassinosteroid and sugar signaling to regulate grain length in bread wheat

ABSTRACT: The TaSnRK1-TabHLH489 module integrates brassinosteroid and sugar signaling to regulate grain length in bread wheat

PROVIDER: PRJNA1065359 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR27562073_1.fastq.gz	Fastqsanger.gz
	SRR27562073_2.fastq.gz	Fastqsanger.gz
	SRR27562074_1.fastq.gz	Fastqsanger.gz
	SRR27562074_2.fastq.gz	Fastqsanger.gz
	SRR27562075_1.fastq.gz	Fastqsanger.gz

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The TaSnRK1-TabHLH489 module integrates brassinosteroid and sugar signaling to regulate grain length in bread wheat

Project description:Regulation of grain size is a crucial strategy for improving crop yield and is also a fundamental aspect of developmental biology. However, the underlying molecular mechanisms governing grain development in wheat remain largely unknown. In this study, we identified a wheat atypical basic helix-loop-helix (bHLH) transcription factor, TabHLH489, which is tightly associated with grain length through genome-wide association study and map-based cloning. Knockout of TabHLH489 and its homologous genes resulted in increased grain length and weight, whereas overexpression led to decreased grain length and weight. TaSnRK1α1, the α-catalytic subunit of plant energy sensor SnRK1, interacted with and phosphorylated TabHLH489 to induce its degradation, thereby promoting wheat grain development. Sugar treatment induced TaSnRK1α1 protein accumulation while reducing TabHLH489 protein levels. Moreover, brassinosteroid (BR) promotes grain development by decreasing TabHLH489 expression through the transcription factor BRASSINAZOLE RESISTANT1 (BZR1). Importantly, natural variations in the promoter region of TabHLH489 affect the TaBZR1 binding ability, thereby influencing TabHLH489 expression. Taken together, our findings reveal that the TaSnRK1α1-TabHLH489 regulatory module integrates BR and sugar signaling to regulate grain length, presenting potential targets for enhancing grain size in wheat.

2024-02-04 | GSE253343 | GEO

Interaction between BZR1 and PIF4 integrates brassinosteroid and environmental responses

Project description:This SuperSeries is composed of the following subset Series: GSE35315: Interaction between BZR1 and PIF4 integrates brassinosteroid and environmental responses [ChIP-seq] GSE37159: Interaction between BZR1 and PIF4 integrates brassinosteroid and environmental responses [RNA-seq] Refer to individual Series

2012-07-07 | E-GEOD-37160 | biostudies-arrayexpress

Interaction between BZR1 and PIF4 integrates brassinosteroid and environmental responses

Project description:Interaction between BZR1 and PIF4 integrates brassinosteroid and environmental responses

| PRJNA158597 | ENA

Genome interplay in the grain transcriptome of hexaploid bread wheat

Project description:Allohexaploid bread wheat (Triticum aestivum, L.) provides ~ 20% of calories consumed by humans. Hitherto lack of genome sequence for the three homoelogous and highly similar bread wheat genomes (A, B and, D) impeded expression analysis of the grain transcriptome. We used novel genome information to analyze the cell type specific expression of homeologous genes in the developing wheat grain.

2014-07-18 | E-MTAB-2137 | biostudies-arrayexpress

Interaction between BZR1 and PIF4 integrates brassinosteroid and environmental responses [ChIP-seq]

Project description:Plant growth is coordinately regulated by environmental and hormonal signals. Brassinosteroid (BR) plays essential roles in growth regulation by light and temperature, but the interactions between BR and these environmental signals remain poorly understood at the molecular level. Here, we show that direct interaction between the dark- and heat-activated transcription factor phytochrome-interacting factor4 (PIF4) and the BR-activated transcription factor BZR1 integrates the hormonal and environmental signals. BZR1 and PIF4 interact with each other in vitro and in vivo, bind to nearly two thousand common target genes, and synergistically regulate many of these target genes, including the PRE family HLH factors required for promoting cell elongation. Genetic analysis indicates that BZR1 and PIFs are interdependent in promoting cell elongation in response to BR, darkness, or heat. These results show that the BZR1-PIF4 interaction controls a core transcription network, allowing plant growth co-regulation by the steroid and environmental signals. Genome-wide identification of PIF4 binding sites in etiolated Arabidopsis seedlings.

2012-07-07 | E-GEOD-35315 | biostudies-arrayexpress

Interaction between BZR1 and PIF4 integrates brassinosteroid and environmental responses [RNA-seq]

Project description:Plant growth is coordinately regulated by environmental and hormonal signals. Brassinosteroid (BR) plays essential roles in growth regulation by light and temperature, but the interactions between BR and these environmental signals remain poorly understood at the molecular level. Here, we show that direct interaction between the dark- and heat-activated transcription factor phytochrome-interacting factor4 (PIF4) and the BR-activated transcription factor BZR1 integrates the hormonal and environmental signals. BZR1 and PIF4 interact with each other in vitro and in vivo, bind to nearly two thousand common target genes, and synergistically regulate many of these target genes, including the PRE family HLH factors required for promoting cell elongation. Genetic analysis indicates that BZR1 and PIFs are interdependent in promoting cell elongation in response to BR, darkness, or heat. These results show that the BZR1-PIF4 interaction controls a core transcription network, allowing plant growth co-regulation by the steroid and environmental signals. RNA-Seq for Col-0, bzr1-1D, pifq and pifq;bzr1-1D seedlings grown on BRZ-containing medium in the dark.

2012-07-07 | E-GEOD-37159 | biostudies-arrayexpress

Interaction between BZR1 and PIF4 integrates brassinosteroid and environmental responses [RNA-seq]

2012-07-08 | GSE37159 | GEO

Interaction between BZR1 and PIF4 integrates brassinosteroid and environmental responses [ChIP-seq]

2012-07-08 | GSE35315 | GEO

Brassinosteroid, gibberellin, and phytochrome impinge on a common transcription module in Arabidopsis

Project description:Brassinosteroid (BR) and gibberellin (GA) promote many similar developmental responses in plants; but their relationship remains unclear. Here we show that BR and GA act interdependently through a direct interaction between the BR-activated BZR1 and GAinactivated DELLA transcription regulators. GA promotion of cell elongation required BR signaling, whereas BR or active BZR1 can suppresssed the GA-deficient dwarf phenotype. DELLAs directly interacted with BZR1 and inhibited BZR1-DNA binding both in vitro and in vivo. Genome-wide analysis defined a BZR1-dependent GA-regulated transcriptome, which is enriched with light-regulated genes and genes involved in cell wall synthesis and photosynthesis/chloroplast. GA promotion of hypocotyl elongation requires both BZR1 and the phytochrome interacting factors (PIFs), as well as their common downstream targets PREs. The results demonstrate that GA releases DELLA-mediated inhibition of BZR1, and that the DELLA-BZR1-PIF4 interaction defines a core transcription module that mediates coordinated growth regulation by GA, BR and light signals.

2012-06-25 | GSE35408 | GEO

A circadian transcriptional sub-network and EARLY FLOWERING 3 control timing of senescence and grain nutrition in bread wheat

Project description:Bread wheat (Triticum aestivum cv. Mace) mature and senescent flag leaves were collected over a 48 h time course in continuous conditions to investigate changes in circadian clock regulation that occur during leaf senescence.

2024-02-27 | GSE259431 | GEO

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