Reference genes selection for real-time quantitative PCR analysis in mouse germinal vesicle oocytes.

Area of Science:

• Reproductive Biology
• Molecular Biology
• Genomics

Background:

• Accurate gene expression analysis relies on stable reference genes.
• Mouse oocytes are a key model for developmental and reproductive studies.
• Germinal vesicle (GV) stage oocytes are critical for early development.

Purpose of the Study:

• To evaluate the expression stability of seven commonly used reference genes in mouse oocytes at the germinal vesicle (GV) stage.
• To identify the most suitable reference genes for normalization in gene expression studies of mouse GV oocytes.
• To compare the performance of geNorm, BestKeeper, and NormFinder algorithms for reference gene selection.

Main Methods:

• Analysis of expression stability for seven candidate reference genes (Actb, Eef1e1, Gapdh, H2afz, Ppia, Rpl4, Ubc).
• Utilized three statistical software tools: geNorm, BestKeeper, and NormFinder.
• Focus on mouse oocytes at the germinal vesicle (GV) stage.

Main Results:

• Expression stability varied among the tested reference genes.
• Gapdh, Rpl4, and H2afz were identified as the most stable reference genes.
• The suitability of reference genes differed based on the analysis software used.

Conclusions:

• Gapdh, Rpl4, and H2afz are recommended as reliable reference genes for gene expression studies in mouse GV oocytes.
• Proper reference gene selection is essential for robust and reproducible results in molecular analyses.
• This study provides a validated list of reference genes for the mouse oocyte research community.