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Ctenopharyngodon idella

ABSTRACT: The grass carp, Ctenopharyngodon idella, is a fast-growing, herbivorous, freshwater fish.

PROVIDER: PRJNA43379 | ENA |

REPOSITORIES: ENA

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			Action	DRS
		Other
	DRR069727.fastq.gz	Fastqsanger.gz
	DRR069728.fastq.gz	Fastqsanger.gz
	DRR069729.fastq.gz	Fastqsanger.gz
	DRR069730.fastq.gz	Fastqsanger.gz

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Plasma Exosomes Associated with Growth Divergence as in High-Density Cultured Grass Carp (Ctenopharyngodon idella): miRNA-Protein Profiling Reveals Cross-Tissue Communication Networks

Project description:Grass carp (Ctenopharyngodon idella) is a major freshwater aquaculture species in China, but its growth is limited under intensive high-density farming. This study aimed to investigate the role of plasma exosomes in growth regulation by isolating and characterizing exosomes from fast- and slow-growing grass carp after nine months of culture. Exosomes showed typical morphology and expressed characteristic markers (CD63, CD81, TSG101). Small RNA sequencing identified 3325 miRNAs, with 177 highly abundant miRNAs differentially expressed: immune-related miRNAs were upregulated, while development-inhibitory miRNAs were downregulated in fast-growing fish. Target gene enrichment highlighted pathways in neural and skeletal development and amino acid metabolism. Integrative analysis across tissues revealed 26 miRNAs with coordinated expression patterns between plasma exosomes and brain, liver, or muscle, validated by qPCR. DIA proteomics quantified 4203 proteins, identifying 843 differentially enriched proteins linked to immune response, energy metabolism, and endoplasmic reticulum stress. Notably, TYMP was upregulated in muscle and exosomes, while several proteins (e.g., GYG2, BHMT) showed coordinated downregulation across tissues and exosomes in large fish. These results provide comprehensive evidence of exosome-mediated cross-tissue communication in teleosts and suggest plasma exosomal miRNAs and proteins as non-invasive biomarkers for growth performance in aquaculture.

2026-07-22 | GSE336504 | GEO

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High Temperature on Immune Response of Grass Carp

Project description:Effect of High Temperature on Immune Response of Grass Carp (Ctenopharyngodon idellus) by Transcriptome Analysis To understand the immune response mechanisms of this fish in high temperature circumstance, the transcriptomic profiles of the spleens from grass carp groups undergoing heat stress and normal temperature were investigated.

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