Ontology highlight
ABSTRACT:
PROVIDER: PRJNA879924 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR21539913_1.fastq.gz | Fastqsanger.gz | |||
| SRR21539913_2.fastq.gz | Fastqsanger.gz | |||
| SRR21655538_1.fastq.gz | Fastqsanger.gz | |||
| SRR21655538_2.fastq.gz | Fastqsanger.gz | |||
| SRR21655539_1.fastq.gz | Fastqsanger.gz |
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Project description:The experiment was conducted at the Kołuda Wielka Experimental Station of the National Research Institute of Animal Production (Kołuda Wielka, Poland). All birds were kept in semi-intensive rearing system according to the oat-fattening technology. At 15.5 weeks of age, 8 geese were selected and divided into two groups (n=4) depending on final body weight. Group I (light) were geese with the flock average weight of 7,10 kg, group II (heavy) consisted of geese with above-average growth potential, which achieved a body weight of 7,95 kg during the same time. Up to 20 min after slaughter, the whole pituitary and hypothalamus were collected and stabilized in RNAlater solution to RNA isolation purpose.
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Project description:Intramuscular fat (IMF) serves as a crucial economic indicator of meat quality. To investigate the heterogeneity of IMF composition and its regulatory mechanisms in Xingguo (XG) geese with varying IMF levels, lipidomics and transcriptomics were utilized. The analysis of lipid profiles revealed that the predominant lipids in the IMF of XG geese were glycerophospholipids (GPs), followed by glycerides (GLs). Interestingly, the low-IMF group exhibited an increase in GPs, specifically phosphatidylethanolamines (PEs) and phosphatidylcholines (PCs), while the high-IMF group showed elevated levels of triacylglycerols (TAGs). Transcriptomic analysis indicated that genes related to extracellular matrices (ECM)-receptor interactions, focal adhesion, mitogen-activated protein kinase (MAPK), and forkhead transcription factors O (FoxO) signaling pathways were upregulated in the low-IMF group. In contrast, genes involved in metabolic processes were more pronounced in the high-IMF group. A comprehensive analysis combining lipidomics and transcriptomics identified CD36, fatty acid-binding protein 5 (FABP5), troponin I2 (TNNI2), and coronin-6 isoform X1 (CORO6) as essential regulators influencing IMF accumulation in XG geese. This research emphasizes the significant lipids, genes, and signaling pathways that play roles in IMF accumulation, providing a theoretical basis for enhancing the meat quality of XG geese.
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Project description:Bacterial pneumonia is still a major cause of morbidity and mortality worldwide. One of the reasons for this may be the lack of accurate diagnostic tests that results in delayed identification of the causative agent and subsequent delay in initiating appropriate therapy. Therefore, there is an urgent need for new diagnostic tools for the rapid identification of the causative agent in bacterial pneumonia. Host biomarkers for early identification of etiology agents in bacterial pneumonia could assist in the development of those new diagnostic tools. The existing biomarkers such as procalcitonin and C-reactive protein for diagnosis of bacterial pneumonia are rather unspecific inflammatory markers and are not discriminatory between different infectious pathogens. In this regard, the objective of this study was the identification of host biomarkers which could distinguish pneumococcal pneumonia from staphylococcal pneumonia in an experimental murine infection model using RNA-Sequencing.
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Project description:Geese have a high tolerance of massive energy intake and exhibit little pathological development. We assessed phenotypes and transcriptomes of Tianfu geese to investigate the dynamic expression network behind goose adipogenesis. Goose liver exhibited higher fat accumulation than adipose tissues during fattening. We identified differentially expressed genes that function in several important lipid metabolism pathways, immune response, regulation of cancer, and differentially expressed long noncoding RNAs that might be involved in regulation of these pathways. We found that genes like BGE1 and SCD, which have key roles in glycolysis and synthesis of fatty acids, had higher fold change in liver than in adipose tissue. we suppose that the evolutionary split from mammals in adipogenesis is a result of adaptive evolution to long-distance migration.
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Project description:Lion-head goose is the only large goose species in China, and it was one of the largest goose species in the world. Our previous study firstly reported a chromosome-level genome assembly of Lion-head goose (Anser cygnoides), a native breed in South China, through the combination of PacBio, Bionano, and Hi-C technologies. The fat content of foie gras is augmented during its preparation due to the special feeding regimen. Lion-head geese have a strong tolerance of massive energy intake and show a priority of fat accumulation in liver tissue. In this study, we studied for the first time the important differential genes that regulate fatty liver in Lion-head goose. After high-intake feeding, the fatty livers of Lion-head geese were distinctly characterized. The revelation of gene regulation is an important basis for the study of liver development and molecular characteristics for the Lion-head goose. To analyze the excellent fatty liver performance of Lion-head goose at the molecular level, we performed whole transcriptome analysis by high-throughput RNA sequencing to analyze the key regulatory genes that determine the fatty livers in high-intake feeding group compared with the normal livers in normally-fed Lion-head geese. We identified 716 differentially expressed mRNAs, 145 differentially expressed circRNAs, and 39 differentially expressed lncRNAs in the fatty livers in high-intake feeding group compared with the normal livers in normally-fed Lion-head geese, including upregulated and downregulated genes, respectively. GO enrichment analysis showed that these genes were significantly enriched in molecular function, involved in extracellular regions, DNA-binding transcription factor activity, extracellular matrix, heme binding and other life activities. We chose differentially expressed genes involved in either upregulation or downregulation, and we additionally confirmed the accuracy of sequencing at the RNA level. In summary, our research suggested that these differentially expressed genes may play important roles in fatty liver development in Lion-head goose. However, the functions and mechanisms of these significantly differentially expressed genes should be investigated in future studies.
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Project description:<p>Traveler's diarrhea (TD) is caused by enterotoxigenic Escherichia coli (ETEC), other pathogenic gram-negative pathogens, norovirus and some parasites. Nevertheless, standard diagnostic methods fail to identify pathogens in more than 30% of TD patients, so it is predicted that new pathogens or groups of pathogens may be causative agents of disease. A comprehensive metagenomic study of the fecal microbiomes from 23 TD patients and seven healthy travelers was performed, all of which tested negative for the known etiologic agents of TD in standard tests. Metagenomic reads were assembled and the resulting contigs were subjected to semi-manual binning to assemble independent genomes from metagenomic pools. Taxonomic and functional annotations were conducted to assist identification of putative pathogens. We extracted 560 draft genomes, 320 of which were complete enough to be enough characterized as cellular genomes and 160 of which were bacteriophage genomes. We made predictions of the etiology of disease in individual subjects based on the properties and features of the recovered cellular genomes. Three subtypes of samples were observed. First were four patients with low diversity metagenomes that were predominated by one or more pathogenic E. coli strains. Annotation allowed prediction of pathogenic type in most cases. Second, five patients were co-infected with E. coli and other members of the Enterobacteriaceae, including antibiotic resistant Enterobacter, Klebsiella, and Citrobacter. Finally, several samples contained genomes that represented dark matter. In one of these samples we identified a TM7 genome that phylogenetically clustered with a strain isolated from wastewater and carries genes encoding potential virulence factors. We also observed a very high proportion of bacteriophage reads in some samples. The relative abundance of phage was significantly higher in healthy travelers when compared to TD patients. Our results highlight that assembly-based analysis revealed that diarrhea is often polymicrobial and includes members of the Enterobacteriaceae not normally associated with TD and have implicated a new member of the TM7 phylum as a potential player in diarrheal disease. </p>
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