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Multi-omic dissection of heat stress memory responses in Brachypodium distachyon - sRNA-seq data

ABSTRACT: Multi-omic dissection of heat stress memory responses in Brachypodium distachyon - sRNA-seq data

PROVIDER: PRJEB60467 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	ERR10975713.fastq.gz	Fastqsanger.gz
	ERR10975714.fastq.gz	Fastqsanger.gz
	ERR10975715.fastq.gz	Fastqsanger.gz
	ERR10975716.fastq.gz	Fastqsanger.gz
	ERR10975717.fastq.gz	Fastqsanger.gz

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Multi-omic dissection of heat stress memory responses in Brachypodium distachyon - sRNA-seq data

Project description:Stressful environmental conditions, including heat stress (HS), are a major limiting factor in crop yield. Understanding the molecular mechanisms of plant stress memory and resilience is important for improving crop yield. We performed a sRNA-seq to reveal the biological pathways and potential functional inter-layer associations affected by HS

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Multi-omic dissection of heat stress memory responses in Brachypodium distachyon - DNA methylation data

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Multi-omic dissection of heat stress memory responses in Brachypodium distachyon - RNA-seq data

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Multi-omic dissection of heat stress memory responses in Brachypodium distachyon - DNA methylation data

Project description:Stressful environmental conditions, including heat stress (HS), are a major limiting factor in crop yield. Understanding the molecular mechanisms of plant stress memory and resilience is important for improving crop yield. We performed a temporal atlas of DNA methylation to reveal the biological pathways and potential functional inter-layer associations affected by HS

2023-03-17 | E-MTAB-12727 | biostudies-arrayexpress

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Transcriptomic analysis of heat stress transcriptional memory in Arabidopsis seedling

Project description:Plants can be primed by a stress cue to mount a faster and stronger activation of defense mechanisms upon a subsequent stress. A crucial component of such stress priming is the modified reactivation of genes upon recurring stress, a phenomenon known as transcriptional memory. The transcriptional memory in response to heat stress is not clear at the genome scale. We used microarrays to identify genes that showed transcriptional memory in response to recurring heat stress.

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Multi-omic and spatial dissection of immunotherapy response groups in NSCLC

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Conserved heat shock factors control barley heat stress memory through diverged mechanisms

Project description:Climate change requires optimizing stress responses in crops. Priming and memory of heat stress (HS) allow plants to improve their tolerance against high temperatures. Here, we investigate HS memory in cultivated barley (Hordeum vulgare) to assess whether the mechanisms underlying priming by and memory of HS are conserved between dicots and monocots. Mutation of the barley orthologs of two key transcriptional regulators of HS memory, HvHSFA2 and HvHSFA3, reduced HS memory. This correlated with altered transcriptional responses of heat-induced genes in the mutants after recurrent HS. Conversely, overexpression of HvHSFA2 increases HS tolerance with no penalty on productivity. While the biological role of HSFA2 and HSFA3 is conserved, their mechanistic functions appear to have diverged, as we did not find evidence that HvHSFA2 is involved in H3K4me-mediated priming. Instead, both factors are globally required to boost induction of HS-responsive genes after recurrent HS. In summary, while barley HS memory depends on the highly conserved HvHSFA2 and HvHSFA3, the underlying transcriptional wiring is different. Our findings provide a tangible route to improve HS tolerance in temperate cereals.

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Conserved heat shock factors control barley heat stress memory through diverged mechanisms

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