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Arabidopsis thaliana

ABSTRACT: Allele-specific expression in A. thaliana hybrids grown under control and drought stress conditions

OTHER RELATED OMICS DATASETS IN: E-GEOD-43560

PROVIDER: PRJNA186735 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR649737.fastq.gz	Fastqsanger.gz
	SRR649738.fastq.gz	Fastqsanger.gz
	SRR649739.fastq.gz	Fastqsanger.gz
	SRR649740.fastq.gz	Fastqsanger.gz
	SRR649741.fastq.gz	Fastqsanger.gz

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Allele-specific expression in A. thaliana hybrids grown under control and drought stress conditions

Project description:We estimate Allele-specific expression in F1 hybrids between Col-0 and Cvi-0 accessions grown under well watered and drought stress conditions. We found that ~90% of the genes showed similar ASE under both stresses. Trans-effects were less robust across environments, however its effect was milder compared to cis-variation.

2015-06-25 | GSE43560 | GEO

E-GEOD-43560

Project description:Allele-specific expression in A. thaliana hybrids grown under control and drought stress conditions

2019-05-14 | E-GEOD-43560 | ExpressionAtlas

Allele-specific expression in A. thaliana hybrids grown under control and drought stress conditions

2015-06-25 | E-GEOD-43560 | biostudies-arrayexpress

Constitutive expression of JASMONATE RESISTANT 1 elevates content of several jasmonates and primes Arabidopsis thaliana to better withstand drought

Project description:Purpose: In this study we investigated the role of JASMONATE RESISTANT 1 (JAR1) and JAR1 mediated JA-Ile formation in drought stress tolerance in Arabidopsis thaliana. Methods: Global transcriptional changes in a newly generated over-expression line (JAR1-OE; 35S::JAR1-1-YFP)), a T-DNA insertion line in the JAR1 locus (jar1-11;SALK_034543), and wild-type Col-0 were investigated by RNA-seq analyses of rosette leaves from 32 day-old plant that were either well-watered (control) or not watered after day 18 (drought). Plants were grown on soil under long-day conditions Results: Under control conditions, using a stringent cut-off (DESeq, adjusted to FDR < 0.01 and LogFC ≥ 1), we found only four differentially expressed genes (DEGs) between jar1-11 and Col-0, all of them downregulated. By contrast, we found 339 DEGs between JAR1-OE and Col-0, of which 134 were downregulated and 205 were upregulated. A comparison of the RNA-seq data from Col-0 between control and drought conditions revealed 3401 DEGs, of which 2023 were down- and 1378 upregulated. By comparison, jar1-11 plants, which were most heavily affected by drought stress, showed a much higher number (6139 in total; 2616 up- and 3523 down-regulated) of DEGs, while the more drought-tolerant JAR1-OE line displayed a lower number (2025 in total; 971 up- and 1054 down-regulated) of DEGs. 2411 DEGs were found between Col-0 and jar1-11 under drought among which 966 genes showed a higher and 1445 genes a lower expression level in jar1-11. On the other hand, out of 998 DEGs found between Col-0 and JAR1-OE under drought, 737 genes showed a higher and 261 genes a lower expression level in JAR1-OE. Moreover, we found 391 DEGs counter-regulated between jar1-11 and JAR1-OE. Conclusion:RNA-seq analysis and additional experiments of plants under control and drought stress conditions provided insight into the molecular reprogramming caused by the alteration in JA-Ile content.

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Proteome data of HID2 negatively regulates drought tolerance in Arabidopsis thaliana

Project description:To further investigate how HID2 regulates translation during drought responses, we performed a comparative leaf proteome analysis using 24-day-old hid2 mutant and WT plants grown under well-watered and drought stress conditions.

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Project description:We generated F1 hybrids of each of the sister species A. halleri and A. lyrata with their outgroup relative of A. thaliana and monitored allele-specific levels of expression in standard growth conditions, in response to dehydration or cold exposure. This data allowed us to map the genome-wide distribution of cis-regulatory mutations active in three distinct environments reflecting divergent adaptations of the two species. Because the sister species were both crossed to an outgroup species, it was possible to assign a phylogenetic origin to cis-acting mutations. Cis-acting mutations observed in only one of the two hybrids were likely to be derived, whereas those observed in both hybrids either predate predated the split between the two species or arose along the A. thaliana lineage. By contrasting the distribution of cis-regulatory mutations derived in the A. halleri to those derived on the A. lyrata lineage, we could establish relative rates of cis-acting evolution across polygenic molecular functions and detect lineage-specific polygenic adaptation to environmental challenges. A.thalianaxA.lyrata under cold, dehydration and standard conditions, 3 biological replicates; A.thalianaxA.halleri under cold, dehydration and standard conditions, 3 biological replicates; toal 18 RNA-seq samples

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