Transcriptomics of bovine sperm and oocytes

Area of Science:

• Reproductive biology
• Molecular genetics
• Genomics

Background:

• Traditional methods like microscopy assessed sperm and embryo morphology and motility.
• OMICS technologies, particularly transcriptomics, offer high-sensitivity screening of molecular fertility markers.

Purpose of the Study:

• To review gene contributions to sperm structure, function, fertilization, and early embryo development.
• To identify microRNAs (miRNAs) shared across sperm, oocytes, and early embryos and their roles.

Main Methods:

• Transcriptomic analysis using high-throughput methods to study RNA expression.
• Literature review of gene and miRNA functions in reproduction.

Main Results:

• Genes significantly contribute to sperm structure, function, fertilization, and early embryo development.
• Specific miRNAs were identified as shared by sperm, oocytes, and early embryos.
• These shared miRNAs play crucial roles in fertilization and early embryonic development.

Conclusions:

• Transcriptomics provides a sensitive molecular approach to studying fertility markers.
• Gene and miRNA expression are critical for successful reproduction from gametes to early embryos.