GEO DataSets

(Submitter supplied) Climate change is not only causing a rise of global temperature but also more variable climates. In major wheat-producing countries, spring temperatures have increased up to 40°C in recent years. Considering the wheat optimal growth temperature of around 20°C, wheat is particularly prone to damage by heat stress. To combat this threat, it is imperative to understand the response of wheat to early heat stress. more...

Organism:

Triticum aestivum

Type:

Expression profiling by high throughput sequencing

Platform:

GPL25409

30 Samples

Download data: TXT

(Submitter supplied) More than four billion people rely on bread wheat (Triticum aestivum L.) as a major constituent of their diet. However, the changing climate threatens wheat production, with periods of intense drought stress already causing widespread wheat yield losses. Much of the research into the wheat drought response has centred on the response to drought events later in development, during anthesis or grain filling. more...

Organism:

Triticum aestivum

Type:

Expression profiling by high throughput sequencing

Platform:

GPL25409

28 Samples

Download data: TXT

(Submitter supplied) We present a transcriptomic atlas of abiotic stress tolerance in wheat. We employed a systems biology approach to study physiological, metabolomic and transcriptomic responses associated with heat, drought, salinity and their possible combinations. Our objectives were to (1) rank stress treatments based on the overall physiological and growth impacts, (2) identify the core sets of genes common to a particular stress type, (3) examine pathways that are uniquely expressed in the various stress combinations, (4) detect associations between phenotypic and transcriptomic responses, (5) suggest possible transcription factors for further characterization and use in improving wheat performance in multi-stress environments.

Organism:

Triticum aestivum

Type:

Expression profiling by high throughput sequencing

Platform:

GPL18862

32 Samples

Download data: XLSX

(Submitter supplied) Heat stress along with other abiotic stresses is one of the major factors affecting crop health and overall yield in a tropical country like India. Thus, there is an urgent need to understand the dynamics of heat responsiveness at the molecular as well as physiological level. Fortunately, India has a number of indigenous varieties that show tolerance to extremes in temperature during the scorching summer months. more...

Organism:

Oryza sativa; Oryza sativa Indica Group

Type:

Expression profiling by array

Platform:

GPL2025

18 Samples

Download data: CEL

(Submitter supplied) Wheat is one of the most significant crops in terms of human consumption in the world. In a climate change scenario, extreme weather event such as heatwaves will be more frequent especially during the grain-filling (GF) stage and could affect grain weight and quality of crops. Molecular mechanisms underlying the response to short heat stress (HS) have been widely reported for the hexaploid wheat (Triticum aestivum) but the regulatory heat stress mechanisms in tetraploid durum wheat (Triticum turgidum ssp. more...

Organism:

Triticum turgidum subsp. durum

Type:

Expression profiling by high throughput sequencing

Platform:

GPL20257

6 Samples

Download data: TXT

(Submitter supplied) Water-deficit and heat stress negatively impact crop production. Mechanisms underlying the response of durum wheat to such stresses are not well understood. With the new durum wheat genome assembly, we conducted the first multi-omics analysis with next-generation sequencing, providing a comprehensive description of the durum wheat small RNAome (sRNAome), mRNA transcriptome, and degradome. Single and combined water-deficit and heat stress were applied to stress-tolerant and -sensitive Australian genotypes to study their response at multiple time-points during reproduction. more...

Organism:

Triticum turgidum subsp. durum

Type:

Expression profiling by high throughput sequencing; Non-coding RNA profiling by high throughput sequencing; Other

Platforms:

GPL28728 GPL20257

136 Samples

Download data: XLSX

(Submitter supplied) We used dithiothreitol (DTT) and tauroursodeoxycholic acid (TUDCA) to induce or suppress ER stress in wheat cells, respectively, with the aim to reveal the molecular background of ER stress responses using RNA sequencing. Transcriptomic analysis revealed that 8204 genes were differentially expressed in three treatment groups. Among these genes, 158 photosynthesis-related genes, 42 antioxidant enzyme genes, 318 plant hormone-related genes and 457 transcription factors (TFs) might play vital roles in regulating wheat response to ER stress.

Organism:

Triticum aestivum

Type:

Expression profiling by high throughput sequencing

Platform:

GPL23509

9 Samples

Download data: TXT

(Submitter supplied) We demonstrate here that heat stress severely alters the cytoskeletal configuration, cell structure, and global gene expression in male meiocytes and the tapetum layer, in a genotype-dependent manner. ‘Ellvis’, a heat-tolerant winter wheat cultivar, showed high fertility and only scarce structural aberrations upon exposure to high temperature. In addition, heat shock genes and genes involved in the alleviation of reactive oxygen species were significantly upregulated in ‘Ellvis’ and the expression of meiosis-specific and important developmental genes showed high stability in this cultivar. more...

Organism:

Triticum aestivum

Type:

Expression profiling by high throughput sequencing

Platform:

GPL25409

12 Samples

Download data: TXT