MicroRNA Expression Profiling of Lactating Mammary Gland in Divergent Phenotype Swine Breeds

International Journal of Molecular Sciences

Jing Peng²  Jun-Sheng Zhao²  Yi-Fei Shen²  Hai-Guang Mao²  Ning-Ying Xu¹ 

[1] College of Animal Sciences, Zhejiang University, Hangzhou 310058, China;

关键词: microRNA sequencing;    mammary gland;    swine;   

DOI  :  10.3390/ijms16011448

来源: mdpi

【 摘 要 】

MicroRNA (miRNA) plays a key role in development and specific biological processes, such as cell proliferation, differentiation, and apoptosis. Extensive studies of mammary miRNAs have been performed in different species and tissues. However, little is known about porcine mammary gland miRNAs. In this study, we report the identification and characterization of miRNAs in the lactating mammary gland in two distinct pig breeds, Jinhua and Yorkshire. Many miRNAs were detected as significantly differentially expressed between the two libraries. Among the differentially expressed miRNAs, many are known to be related to mammary gland development and lactation by interacting with putative target genes in previous studies. These findings suggest that miRNA expression patterns may contribute significantly to target mRNA regulation and influence mammary gland development and peak lactation performance. The data we obtained provide useful information about the roles of miRNAs in the biological processes of lactation and the mechanisms of target gene expression and regulation.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.