MicroRNA profiles in leaves of Sorghum exposed to drought or heat or their combination
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ABSTRACT:
PROVIDER: PRJNA661564 | ENA |
REPOSITORIES: ENA
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Project description:MicroRNAs (miRNAs) are part of gene regulatory networks that direct all most all biological processes in plants including their growth and development, as well as adaptation to biotic and abiotic stresses. Sorghum is largely grown for its grain production, but recently it also emerged a major feedstock for biofuel production. Interestingly, Sorghum is relatively drought tolerant crop and largely grown in semi-arid tropical and sub-tropical regions where the drought or high temperature or their combination co-occur in the field. Although miRNA profiles have been reported in Sorghum leaves exposed to drought, but thus far miRNAs in heat- or drought and heat-exposed conditions have not been reported. In this study, we report miRNA profiles in Sorghum leaves exposed to drought or heat or their combination. The bioinformatic analysis of small RNA libraries revealed the expression of approximately 30 conserved miRNA families represented by 81 individual miRNAs as well as 11 novel miRNA families in Sorghum leaves. Of these, 26 miRNAs were found to be differentially regulated in response to one or more of the stress treatments. Overall, the number of miRNAs regulated by heat was more than the drought. Furthermore, miRNA profiles revealed more similarities between heat and the combination of drought and heat stresses. We also have analyzed degradome profiles in control and drought-exposed plants to identify potential targets for the miRNAs. This study provides a frame work for better understanding of miRNA-guided gene regulations that vary between individual drought or heat or combination of drought and heat treatments.
2021-12-31 | GSE157523 | GEO
Project description:MicroRNAs (miRNAs) are part of gene regulatory networks that direct all most all biological processes in plants including their growth and development, as well as adaptation to biotic and abiotic stresses. Sorghum is largely grown for its grain production, but recently it also emerged a major feedstock for biofuel production. Interestingly, Sorghum is relatively drought tolerant crop and largely grown in semi-arid tropical and sub-tropical regions where the drought or high temperature or their combination co-occur in the field. Although miRNA profiles have been reported in Sorghum leaves exposed to drought, but thus far miRNAs in heat- or drought and heat-exposed conditions have not been reported. In this study, we report miRNA profiles in Sorghum leaves exposed to drought or heat or their combination. The bioinformatic analysis of small RNA libraries revealed the expression of approximately 30 conserved miRNA families represented by 81 individual miRNAs as well as 11 novel miRNA families in Sorghum leaves. Of these, 26 miRNAs were found to be differentially regulated in response to one or more of the stress treatments. Overall, the number of miRNAs regulated by heat was more than the drought. Furthermore, miRNA profiles revealed more similarities between heat and the combination of drought and heat stresses. We also have analyzed degradome profiles in control and drought-exposed plants to identify potential targets for the miRNAs. This study provides a frame work for better understanding of miRNA-guided gene regulations that vary between individual drought or heat or combination of drought and heat treatments.
2021-12-31 | GSE157521 | GEO
Project description:Degradome profiles in leaves of Sorghum exposed to drought or heat or their combination
| PRJNA661562 | ENA
Project description:Transcriptomic response of soybean plants subjected to drought, heat and their combination
2020-12-31 | GSE153951 | GEO
Project description:Combination of drought and heat in soybean plants
| PRJNA644602 | ENA
Project description:One of the eminent opportunities afforded by modern genomic technologies is the potential to provide a mechanistic understanding of the processes by which genetic change translates to phenotypic variation and the resultant appearance of distinct physiological traits. Indeed much progress has been made in this area, particularly in biomedicine where functional genomic information can be used to determine the physiological state (e.g., diagnosis) and predict phenotypic outcome (e.g., patient survival). Until now, ecology has lacked an analogous approach where genomic information can be used to diagnose the presence of a given physiological state (e.g., stress response) and then predict likely phenotypic outcomes (e.g., stress tolerance, fitness). We demonstrate that a compendium of genomic signatures can be used to classify the plant abiotic stress phenotype in Arabidopsis according to the architecture of the transcriptome, and then be linked with gene coexpression network analysis to determine the underlying signaling pathways and ultimately the genes governing the phenotypic response. Here, we release microarray data from an expression profiling study where plants were exposed to heat and drought alone, and in combination with each other. A direct loop design with 6 biological replicates for control, heat, drought, and combined heat and drought was performed. A schematic describing the design is provide as supplementary information.
2010-05-26 | E-GEOD-9415 | biostudies-arrayexpress
Project description:Purpose: Circular RNAs (circRNAs) and microRNAs (miRNAs) play important roles in abiotic stress responses in plants. The aims of this study are to genome-widely identify the circRNAs, miRNAs and their targets in tomatoes at single heat, drought and their combination by high-throughput sequencing. Results: Following high-throughput sequencing, 765 miRNAs were identified in total with 335 conserved and 430 novel miRNAs in the 12 small-RNA libraries. Of these miRNAs, 32, 74 and 61 miRNAs were responsive to drought, heat and their combination, respectively. Following degradome sequencing, 50 sequences were identified as targets of 34 miRNAs in tomatoes at combined stress. Moreover, 467 circRNAs were identified in the 12 samples.
2020-02-20 | GSE121089 | GEO
Project description:A heat and drought tolerant rice cultivar (N22) was grown in the field under control and drought conditions during the dry season in 2013. Drought was applied during early grain filling and resulted in simultaneous heat stress, leading to reduced grain yield and quality. Total RNA was extracted from developing seeds under stress and control (fully flooded) conditions and RNA-seq analysis was performed. These samples are a part of a bigger experiment analysing the responses of three contrasting rice cultivars (N22, Dular, Anjali) to combined heat and drought stress including different organs (developing seeds, flag leaves, flowering spikelets) and developmental stages (early grain filling, flowering) at the transcriptomic level.
2020-11-04 | GSE153030 | GEO
Project description:One of the eminent opportunities afforded by modern genomic technologies is the potential to provide a mechanistic understanding of the processes by which genetic change translates to phenotypic variation and the resultant appearance of distinct physiological traits. Indeed much progress has been made in this area, particularly in biomedicine where functional genomic information can be used to determine the physiological state (e.g., diagnosis) and predict phenotypic outcome (e.g., patient survival). Until now, ecology has lacked an analogous approach where genomic information can be used to diagnose the presence of a given physiological state (e.g., stress response) and then predict likely phenotypic outcomes (e.g., stress tolerance, fitness). We demonstrate that a compendium of genomic signatures can be used to classify the plant abiotic stress phenotype in Arabidopsis according to the architecture of the transcriptome, and then be linked with gene coexpression network analysis to determine the underlying signaling pathways and ultimately the genes governing the phenotypic response. Here, we release microarray data from an expression profiling study where plants were exposed to heat and drought alone, and in combination with each other. Keywords: Stress response, heat, drought, combined stress
2008-02-01 | GSE9415 | GEO
Project description:Sorghum is an important crop often subjected to simultaneous high temperatures and drought in the field. We examined the gene expression response to heat and drought stress both individually, and in combination, with the aim of identifying important stress tolerance mechanisms. Plants were subjected to 4 different conditions (control, heat shock, drought stress and combined heat and drought stress). 3 replicates were carried out for each treatment type giving a total of 12 samples
2014-06-20 | E-GEOD-48205 | biostudies-arrayexpress