Domestic Ducks
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA302767 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR2948716_1.fastq.gz | Fastqsanger.gz | |||
| SRR2948716_2.fastq.gz | Fastqsanger.gz |
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Project description:Hatchability is one of the important reproductive traits of poulty, however, molecular biological study related to hatchability of poultry is very limited. The magnum is where the egg white components are produced. During embryo development, egg white secreted by the magnum is gradually transferred into the amniotic fluid, and albumen finally migrates to the embryo. Egg white proteins are composed of ovalbumin, conalbumin, lysozyme, ovomucoid, riboflavin binding protein (RfBP), and other less abundant proteins. Mutation of ovalbumin and RfBP genes increases the mortality of embryos; therefore, egg white might be closely related to poultry hatchability. Tsaiya duck (Anas platyrhynchos) is the major egg-laying duck in Taiwan. In this study, gene expression profiling by cDNA microarray chip technology was performed using mRNA prepared from the magnum epithelium of Tsaiya ducks, and a number of differentially expressed transcripts were found. Keywords = Tsaiya duck (Anas platyrhynchos), magnum, hachability, cDNA microarray, transcriptional profiling.
2010-11-16 | GSE23100 | GEO
Project description:Hatchability is one of the important reproductive traits of poulty, however, molecular biological study related to hatchability of poultry is very limited. The magnum is where the egg white components are produced. During embryo development, egg white secreted by the magnum is gradually transferred into the amniotic fluid, and albumen finally migrates to the embryo. Egg white proteins are composed of ovalbumin, conalbumin, lysozyme, ovomucoid, riboflavin binding protein (RfBP), and other less abundant proteins. Mutation of ovalbumin and RfBP genes increases the mortality of embryos; therefore, egg white might be closely related to poultry hatchability. Tsaiya duck (Anas platyrhynchos) is the major egg-laying duck in Taiwan. In this study, gene expression profiling by cDNA microarray chip technology was performed using mRNA prepared from the magnum epithelium of Tsaiya ducks, and a number of differentially expressed transcripts were found. Keywords = Tsaiya duck (Anas platyrhynchos), magnum, hachability, cDNA microarray, transcriptional profiling. Analysis used low hachability RNA as control samples for comparison to the experimental samples taken from high hachability group. Total RNA was isolated by the RareRNA reagent (GenePure). The MicroMax direct labeling kit (PerkinElmer) was used to prepare the labeled cDNA and further process the hybridization on the arrays. Dye swap was design with four arrays. Arrays were scanned using a GenePix 4000B microarray scanner (Axon Instruments). GenePix Pro 4.1 software was then used to acquire the raw data. The data was analyzed by Avadis software (Strand Life Science).
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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.
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