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: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:The growth and development of duck skeletal muscle is an important economic trait that is genetically regulated. The internal mechanism underlying the regulation of skeletal muscle growth and development in ducks remains unclear. The purpose of this study was to identify candidate genes related to growth of duck skeletal muscle. RNA-sequencing technology was used to com-pare the transcriptome of duck breast muscles in an F2 population with the high breast muscle rate (HB) and the low breast muscle rate (LB). A total of 14,522 genes were confirmed to be ex-pressed in the breast muscle, and 173 differentially expressed genes (DEGs) were identified be-tween the HB and LB groups. Functional analysis showed that these DEGs were mainly involved in biological processes and pathways of fat metabolism and muscle growth, especially the FABP3 and MYL4 involved in the PPAR signaling pathway and cardiac muscle contraction pathway. These findings deepened our understanding of the molecular mechanisms involved in muscle growth in ducks, and provided a theoretical basis for improving duck production and breeding of ducks.
Project description:In order to elucidate the expression changes of host genes of SPF chickens infected with duck-origin H7N9 subtype avian influenza virus. The lungs of SPF chickens infected with duck-origin H7N9 subtype avian influenza virus were collected and high throughout sequenced. Compared with the control group, there were 740 differentially expressed genes were obtained in infection group, including 602 up-regulated genes and 138 down-regulated genes. The analysis of the GO items showed that the differentially expressed genes were involved in immune responses and inflammatory responses. The results of KEGG analysis showed that 7 pathways were enriched significantly, in those the Toll-like pathway had 11 up-regulated genes, namely IL-6, TLR4, Pik3, IRF7, MD-2, IRF5, MYD88, CD86, STAT1, TLR2, and CCL4. There were 7 up-regulated genes in NOD-like receptor signaling pathway, which were IRF7, CTSB, P2RX7, CYBB, PSTPIP1, HSP90AA1, and NAMPT. In Toll-like signaling pathway,TLR4 was activated by MD-2 after viral infection, and then activated downstream IRF5. At the same time, the NLRP3 inflammasome also played an important role in the process of H7N9 virus infection.
Project description:We used the microarray data to analyze host cells response on A549 cells infected with A/duck/Malaysia/F189/07/2004(H5N2) A/duck/Malaysia/F189/07/2004(H5N2) infected A549 cells were harvested at 10 hpi and RNA extraction was performed using standard protocol as described by Affymetrix. The aim of this experiment is to analyze host response to Influenza A/duck/Malaysia/F189/07/2004(H5N2) infection.
Project description:We used the microarray data to analyze host cells response on A549 cells infected with A/duck/Malaysia/F119/3/1997(H5N3) A/duck/Malaysia/F119/3/1997(H5N3) infected A549 cells were harvested at 10 hpi and RNA extraction was performed using standard protocol as described by Affymetrix. The aim of this experiment is to analyze host response to Influenza A/duck/Malaysia/F119/3/1997(H5N3) infection.
Project description:We used the microarray data to analyze host cells response on CEF cells infected with A/duck/Malaysia/F59/04/1998(H5N2) A/duck/Malaysia/F59/04/1998(H5N2) infected CEF cells were harvested at 10 hpi and RNA extraction was performed using standard protocol as described by Affymetrix. The aim of this experiment is to analyze host response to Influenza A/duck/Malaysia/F59/04/1998(H5N2) infection.
Project description:We used the microarray data to analyze host cells response on MDCK cells infected with A/duck/Malaysia/F189/07/2004(H5N2) A/duck/Malaysia/F189/07/2004(H5N2) infected MDCK cells were harvested at 10 hpi and RNA extraction was performed using standard protocol as described by Affymetrix. The aim of this experiment is to analyze host response to Influenza A/duck/Malaysia/F189/07/2004(H5N2) infection.
Project description:We used the microarray data to analyze host cells response on A549 cells infected with A/duck/Malaysia/F59/04/1998(H5N2) A/duck/Malaysia/F59/04/1998(H5N2) infected A549 cells were harvested at 10 hpi and RNA extraction was performed using standard protocol as described by Affymetrix. The aim of this experiment is to analyze host response to Influenza A/duck/Malaysia/F59/04/1998(H5N2) infection.
Project description:We used the microarray data to analyze host cells response on CEF cells infected with A/duck/Malaysia/F189/07/2004(H5N2) A/duck/Malaysia/F189/07/2004(H5N2) infected CEF cells were harvested at 10 hpi and RNA extraction was performed using standard protocol as described by Affymetrix. The aim of this experiment is to analyze host response to Influenza A/duck/Malaysia/F189/07/2004(H5N2) infection.