Pilot study measuring cyanobacterial ecotype specific grazing rates
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ABSTRACT:
PROVIDER: PRJEB14225 | ENA |
REPOSITORIES: ENA
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Project description:By comparing transcriptomes of tolerant and intolerant plants of sickle alfalfa subject to intensive animal grazing, we identified pathways involved in nutrient-responsive signaling, light and wound response, cell wall formation, and energy metabolism. In these pathways, grazing suppressed 39 genes, but less severe in the tolerant plant, and activated 5 genes all carrying polymorphisms in their homologous transcripts between the tolerant and intolerant plants. These genes and pathways - responsive to grazing and differentially expressed between the tolerant and intolerant plants – underline a defense mechanism in alfalfa against grazing stresses.
2016-08-24 | GSE50430 | GEO
Project description:By comparing transcriptomes of tolerant and intolerant plants of sickle alfalfa subject to intensive animal grazing, we identified pathways involved in nutrient-responsive signaling, light and wound response, cell wall formation, and energy metabolism. In these pathways, grazing suppressed 39 genes, but less severe in the tolerant plant, and activated 5 genes all carrying polymorphisms in their homologous transcripts between the tolerant and intolerant plants. These genes and pathways - responsive to grazing and differentially expressed between the tolerant and intolerant plants â?? underline a defense mechanism in alfalfa against grazing stresses. We examined transcriptomes of 3 alfalfa plants: grazing tolerant and grazed, grazing tolerant and not grazed, grazing intolerant and grazed, all at single replicate each.
2016-08-24 | E-GEOD-50430 | biostudies-arrayexpress
Project description:To investigate the potential effect of grazing movement on miRNA circulation in cattle, here we profiled miRNA expression in centrifugally prepared exosomes from the plasma of both grazing and housed Japanese Shorthorn cattle. Microarray analysis of the c-miRNAs resulted in detection of a total of 231 bovine exosomal miRNAs in the plasma, with a constant expression level of let-7g across the duration and cattle groups. Expression of muscle-specific miRNAs such as miR-1, miR-133a, miR-206, miR-208a/b, and miR-499 were undetectable, suggesting the mildness of grazing movement as exercise.
2016-01-01 | GSE69717 | GEO
Project description:To investigate the potential effect of grazing movement on miRNA circulation in cattle, here we profiled miRNA expression in centrifugally prepared exosomes from the plasma of both grazing and housed Japanese Shorthorn cattle. Microarray analysis of the c-miRNAs resulted in detection of a total of 231 bovine exosomal miRNAs in the plasma, with a constant expression level of let-7g across the duration and cattle groups. Expression of muscle-specific miRNAs such as miR-1, miR-133a, miR-206, miR-208a/b, and miR-499 were undetectable, suggesting the mildness of grazing movement as exercise. Changes in miRNA expression in plasma exosome of cattle was measured at during 0, 1, 2 and 4 months of grazing or housing. Plasma exosome samples prepared from three cattle for each treatment were collected and mixed within the treatment at each time for microarray analysis .
2016-07-03 | E-GEOD-69717 | biostudies-arrayexpress
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Project description:The aim of this study was to elucidate which changes in gene expression are related to the induced anti-herbivory response in the brown seaweed Fucus vesiculosus. Microarray hybridizations were used to identify genes differentially expressed in response to grazing by the isopod Idotea baltica. This study shows that modifications in gene expression occur simultaneously to a reduced palatability and that defence induction entails reallocation of resources from primary to secondary metabolism with down-regulation of photosynthesis and degradation of storage compounds. Total RNA of Fucus vesiculosus pieces that were or were not previously grazed by Idotea baltica for 15 and 18 days (3 biological replicates each) was hybridized against pooled RNA from 4 F. vesiculosus pieces that were collected before onset of grazing (day 0).
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Project description:Analysis methods based on simulations and optimization have been previously developed to estimate relative translation rates from next-generation sequencing data. Translation involves molecules and chemical reactions; hence, bioinformatics methods consistent with the laws of chemistry and physics are more likely to produce accurate results. Here, we derive simple equations based on chemical kinetic principles to measure the translation-initiation rate, transcriptome-wide elongation rate, and individual codon translation rates from ribosome profiling experiments. Our methods reproduce the known rates from ribosome profiles generated from detailed simulations of translation. Applying our methods to data from S. cerevisiae and mouse embryonic stem cells we find that the extracted rates reproduce previously reported correlations with various molecular quantities. A codon can exhibit up to 26-fold variability in its translation rate depending upon its context with in a transcript. This broad distribution means that the average translation rate of a codon is not representative of the rate at which most instances of that codon are translated. We also find that mouse embryonic stem cells have a global translation speed that is almost two-fold faster than previously reported. This large variability in translation rates suggests that translational regulation might be used by cells to a greater degree than previously thought.
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Project description:Phyllostachys edulis cultivar:ecotype Raw sequence reads
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