Current knowledge of microRNA characterization in agricultural animals

Area of Science:

• Molecular Biology
• Genetics
• Animal Science

Background:

• MicroRNAs (miRNAs) are small, single-stranded regulatory RNA molecules (19-24 nucleotides).
• They post-transcriptionally regulate gene expression by binding to complementary sequences in target genes.
• miRNAs are involved in diverse biological processes, including development, immunity, and metabolism.

Purpose of the Study:

• To review current research on microRNAs (miRNAs) in livestock.
• To highlight the species- and tissue-specific nature of miRNAs in livestock.
• To discuss the role of miRNAs and their variations in livestock phenotypic differences.

Main Methods:

• Literature review of existing microRNA (miRNA) profiling studies in livestock.
• Analysis of reported miRNA functions in essential biological processes.
• Examination of the impact of miRNA and target site variations on livestock phenotypes.

Main Results:

• Numerous microRNAs (miRNAs) exhibit species- and tissue-specific expression patterns in livestock.
• miRNAs significantly influence livestock development, immune response, and metabolism.
• Allelic variations in miRNAs and their target sites contribute to phenotypic diversity in livestock.

Conclusions:

• MicroRNAs (miRNAs) are vital regulators of key biological functions in livestock.
• Understanding livestock-specific miRNAs is essential for improving traits and productivity.
• Further research into miRNA allelic variations can elucidate livestock phenotypic differences.