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ABSTRACT: Transcriptome data of periphyton under grazing pressure

PROVIDER: PRJNA1182968 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR31303409_1.fastq.gz	Fastqsanger.gz
	SRR31303409_2.fastq.gz	Fastqsanger.gz
	SRR31303410_1.fastq.gz	Fastqsanger.gz
	SRR31303410_2.fastq.gz	Fastqsanger.gz
	SRR31303411_1.fastq.gz	Fastqsanger.gz

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Multi-Omic Insights into the Cellular Response of Phaeodactylum Tricornutum (Bacillariophyta) Strains under Grazing Pressure

Project description:BACKGROUND/AIMS: Phaeodactylum tricornutum, a model organism of diatoms, plays a crucial role in Earth's primary productivity. Investigating its cellular response to grazing pressure is highly significant for the marine ecological environment. Furthermore, the integration of multi-omics approaches has enhanced the understanding of its response mechanism. METHODS: To assess the molecular and cellular responses of P. tricornutum to grazer presence, we conducted transcriptomic, proteomic and metabolomic analyses, combined with phenotypic data from previous studies. Sequencing data were obtained by Illumina RNA sequencing, TMT Labeled Quantitative Proteomics and Non-targeted Metabolomics, and WGCNA analysis and statistical analysis were performed.RESULTS: Among the differentially expressed genes, we observed complex expression patterns of the core genes involved in the phenotypic changes of P. tricornutum under grazing pressure across different strains and multi-omics datasets. These core genes primarily regulate the levels of various proteins and fatty acids, as well as the cellular response to diverse signals. CONCLUSION: Our research reveals the association of multi-omics in four strains responses to grazing effects in P. tricornutum. Grazing pressure significantly impacted cell growth, fatty acid composition, stress response, and the core genes involved in phenotype transformation.

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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 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.

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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.

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