Genome assemblies for four duck species (family Anatidae)
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ABSTRACT: Genome sequencing and assembly for four duck species (family Anatidae), including the obligate brood parasite Hetronetta atricapilla (black-headed duck)
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: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: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: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:The novel duck reovirus (NDRV) can cause hemorrhage and necrosis on the spleen of Pekin ducks, this disease has resulted in great economic losses to the duck industry. However, the molecular pathogenesis of NDRV remains poorly understood. In the current study, the quantitative proteomic analysis of NDRV-infected duck embryo fibroblasts was performed to explore the cellular protein changes in response to viral infection through iTRAQ coupled with the LC–MS/MS method. A total of 6,137 proteins were obtained in cell samples at 24 hours post infection. Of these, 179 differentially expressed proteins (DEPs) were identified (cutoff set to 1.5-fold change), including 89 upregulated and 90 downregulated proteins. Bioinformatic analysis showed that DEPs can be divided into the cellular component, molecular function, and biological process, they were mainly involved in the signal transduction, infectious diseases, cell growth and death, and the immune system. The subcellular localization of most proteins was cytoplasm. Importantly, the expression of signal transducer and activator of transcription 1 (STAT1) and various interferon-stimulated genes (ISGs) were upregulated after NDRV infection. The mRNA transcripts of some ISGs were consistent with proteomic data, showing an increased trend. Results of our study suggested that NDRV infection can elicit the strong expression changes of cellular proteins, and activate the expression of ISGs from the point of quantitative proteomic analysis. The study provides a new insight into the understanding of NDRV pathogenesis.
Project description:With the purpose to elucidate the expression changes of host genes of SPF chickens infected with duck-origin H7N9 subtype avian influenza virus at 24 hours post-infection(hpi) and fowl adenovirus-4 at 48 dpi. The spleens of SPF chickens infected with duck-origin H7N9 subtype avian influenza virus and fowl adenovirus-4 were collected and high throughout sequenced. Compared with the control group, there were 2426 differentially expressed genes were obtained in the duck-origin H7N9 subtype avian influenza virus group, including 913 up-regulated genes and 1513 down-regulated genes, and there were 1534 differentially expressed genes were obtained in the fowl adenovirus-4 group, including 632 up-regulated genes and 902 down-regulated genes.
Project description:Abdominal fat is considered negatively associated with egg production. Therefore, it is necessary to clarity the regulatory mechanism for the abdominal fat deposition of Muscovy duck.
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 quality and yield of duck feathers are very important economic traits that might be controlled by miRNA regulation. The aim of the present study was to investigate the mechanism underlying the crosstalk between individual miRNAs and the activity of signaling pathways that control the growth of duck feathers during different periods.