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Transcriptome analysis of oviduct in laying ducks under different stocking densities
1Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, P.R. China.
British Poultry Science
|September 22, 2021
Summary
High stocking density impacts duck oviduct gene expression, affecting egg formation pathways. Specific genes involved in molecular transport show altered expression, potentially disrupting oviduct function.
Area of Science:
- Animal Science
- Genomics
- Reproductive Biology
Background:
- High stocking densities can induce stress, altering bird behavior, egg production, and fertility.
- The oviduct is critical for egg formation, making its function under varying densities a key research area.
Purpose of the Study:
- To investigate the effects of high stocking density on gene expression in duck oviduct tissues.
- To identify specific genes and pathways affected by stocking density related to egg formation and transport.
Main Methods:
- Differential gene expression analysis of duck oviduct tissues from different stocking density groups.
- Gene enrichment analysis to identify affected biological pathways.
- Focused analysis on genes related to molecular transport, including solute carrier family members.
Main Results:
- Identified 2,115 differentially expressed genes (DEGs) in oviduct tissues.
- DEGs were enriched in pathways crucial for egg formation, such as membrane components, calcium ion binding, and focal adhesion.
- Found 96 differentially expressed genes related to transport, with 42 from the solute carrier family, and identified specific gene expression differences between high and low-density groups.
Conclusions:
- High stocking density affects the secretion and material transport functions of the duck oviduct.
- Gene expression and splicing related to molecular transport are altered by high stocking density.
- Specific genes like KCNJ15, SLC26A8, TRPM5, ATP13A3, and KCNIP2 show density-dependent expression patterns.
