Project description:The reads of duck transcripome was mapped to the duck genome and help to identify the UTR regions of predicted genes. The expression level difference between the tissue spleen and liver will help us to detect the immune-related and fatty acid metabolism related genes. Duck transcriptome was sequenced to improve the gene annotation quality, and to detect the differently expressed genes in liver and spleen tissues.
Project description:Purpose:To understand the transcriptome regulator of duck spleen infected with duck enteritis virus (DEV).Methods:50-day-old ducks were inoculated with 100 titer (The TCID50 of DEV was 10-9/0.1mL) and 10-2 titer two different viral titer of DEV in leg muscle for different durations (66 h, 90 h and 114 h) and seronegative control (0 h) were analyzed using next-generation RNA sequencing.Furthermore, the data were validated using quantitative real-time PCR.Results:There were 534, 685 and 580 genes differentially expressed in 100 titer, moreover, 511, 485 and 531 differentially expressed genes (DEGs) were obtained from 10-2 titer for 66 h, 90 h and 114 h, respectively. These genes were mainly involved in functional categories including immune response, extracellular space, heparin binding, oxygen transport, extracellular region, cellular response to interleukin-4, MHC class II protein complex, antigen processing and presentation of peptide or polysaccharide antigen via MHC class II, and pathways such as ribosome, ECM-receptor interaction, cell adhesion molecules, JAk-STAT signaling pathway, PPAR signaling pathway, neuroactive ligand-receptor interaction, phagosome.Conclusions: Different titers of DEV infection can stimulate different biological processes and signaling pathways in the spleen, and regulated the complex biological processes, metabolic and signaling pathways in the process of DEV infection.This transcriptome analysis of duck spleen infected with DEV in different time points is reported for the first time, it laid the foundation for further understanding of interactions between DEV and duck spleen tissue, molecular mechanisms of duck defend against DEV infection, and screening key functional genes.
Project description:Duck reovirus (DRV), a member of the genus Orthoreovirus in the family Reoviridae, was first isolated from Muscovy ducks. The disease associated with DRV causes great economic losses to the duck industry. However, the responses of duck (Cairna moschata) to the classical/novel DRV (C/NDRV) infections are largely unknown. To reveal the relationship of pathogenesis and immune response, the proteomes of duck spleen cells under the control and C/NDRV infections were compared. In total, 5986 proteins were identified, of which 5389 proteins were quantified. The different expressed proteins (DEPs) under the C/NDRV infections showed displayed various biological functions and diverse subcellular localizations. The proteins related to the serine protease system were siginificantly changed, suggesting that the activated serine protease system may play an important role under the C/NDRV infections. Furthermore, the differences in the responses to the C/NRDV infections between the duck liver and spleen cells were compared. Only a small number of common DEPs were identified in both liver and spleen cells, suggesting diversified pattern involved in the responses to the C/NRDV infections. However, the changes in the proteins involved in the serine protease systems were similar in both liver and spleen cells. Our data may give a comprehensive resource for investigating the responses to C/NDRV infections in ducks.
Project description:The reads of duck transcripome was mapped to the duck genome and help to identify the UTR regions of predicted genes. The expression level difference between the tissue spleen and liver will help us to detect the immune-related and fatty acid metabolism related genes.
Project description:We deep sequenced and analyzed miRNAs using deep RNA sequencing (RNA-seq) in cage rearing and traditional breeding duck's duodenum sample of Nonghu NO.2 duck. 21 differentially expressed miRNA were identified in the duodenum. 6 miRNAs were upregulated and 15 were downregulated in the cage rearing duck's duodenum of the Nonghu NO.2 duck compared to their expression in the control group. These findings provided insights into the expression profiles of miRNAs in duck duodenum, and deepened our understanding of miRNAs in oxidative injury of duck.
Project description:Our aim was to classify and quantify transcripts identified in 24-h-cultured primary duck hepatocytes and construct a protein–protein interaction network to serve as a reference for host factors associated with hepadnavirus infection. Methods: The transcriptome of 24h-cultured PDHs was analyzed by the pair-end sequencing on the Illumina Solexa platform. High-quality reads were mapped to the Anas platyrhynchos genome with TopHat v2.0.12 software. TopHat allows multiple alignments per read and default parameters were used. Cufflinks v2.2.1 software was later used for analyses that included transcript assembly and FPKM value calculations to quantify gene expression; this program was also run with default parameters. Results: A total of 87.8 million high-quality reads were obtained from three primary duck hepatocyte samples isolated from three separate 1-day-old Anas domesticus ducklings. The reads (mean length 92.21 bases) were mapped to the Anas platyrhynchos genome. A total of 13,541 genes with > 1 fragments per kilobase of transcript per million mapped reads values were expressed in the 24-h-cultured primary duck hepatocyte samples.Using gene ontology analysis, expressed genes were assigned to functional categories. A total of 182 genes expressed in all three separate primary duck hepatocyte samples were identified as liver-specific genes. Conclusions: Transcriptome and gene ontology analyses of 24-h-cultured primary duck hepatocytes indicate that these cells retain hepatocyte-specific biological characteristics and can be used as a model system for hepadnavirus infection. A novel protein–protein interaction network suggests that host factors regulating or inhibiting innate immunity are directly associated with hepadnavirus. The transcriptome of 24h-cultured PDHs was analyzed by the paired-end sequencing on the Illumina Solexa platform.
Project description:We deep sequenced and analyzed miRNAs using deep RNA sequencing (RNA-seq) in transported and control duck's duodenum sample of Jingjiang duck. We analyzed the miRNA data with 9467248 reads and 9808143 million reads, obtained 9338224 and 9677777 clean reads in transported and control duck's by high-throughput sequencing, respectively. we respectively gained 4636135 and 4759049 miRNAs sequences in two groups by filtering the known non-miRNA reads, such as rRNA, tRNA, snRNA, and snoRNA by screening against ncRNA deposited in the GenBank and Rfam databases. These findings provided insights into the expression profiles of miRNAs in duck duodenum, and deepened our understanding of miRNAs in transportation injury of duck.
Project description:The objective of this study is to profile microRNA expressed in embryonic breast muscle of duck, analyze the conservation across multiple species and identify candidate microRNAs associated with duck muscle development. microRNA sequencing analysis was performed using female breast muscle samples at embryonic stage 13th day (E13) and embryonic stage 19th day (E19).